A fishway effect evaluation method and system

Abstract

The application discloses a fishway effect evaluation method, comprising the following steps: determining a fishway effect evaluation index system, wherein the fishway effect evaluation index system comprises a fish passability index system and a fishway hydraulic condition evaluation index system; determining a suitable value calculation method corresponding to the fishway effect evaluation index system; determining a division standard for evaluation according to the suitable value; collecting basic index data of the fishway effect evaluation system; calculating the suitable value corresponding to the fishway effect evaluation index system; and generating an evaluation result of the fishway effect evaluation system according to the division standard. According to the above technical scheme, the fishway overall effect, including the fish luring effect of the fish luring area of the fishway, the passability of the fishway inlet, the passability of the fishway pool section and the passability of the fishway outlet, can be quantitatively evaluated, the position affecting the fishway effect can be accurately diagnosed, and accurate targets for optimizing and improving the fishway are provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fishways, in particular to a fishway effect evaluation method and system. BACKGROUND

[0002] Fishway is the most widely used fish passage facility in fish passage technology. In the past few decades, more and more fishways have been built. Fishways not only serve as fish migration channels, but also are effective practices for adhering to ecological priority and green development in the process of hydropower development. Although fishways play an important ecological role, there is no standardized method to evaluate the performance and effect of fishways. The fishways that have been evaluated are based on the monitoring of the number and quantity of fish passing through the fishways. The performance and effect of the fishways are judged by analyzing the number and diversity of the fishery on the fishway. This biological evaluation method requires sampling, video monitoring or tracking monitoring of fish in the fishway. The biological evaluation method requires complex equipment, consumes a lot of time and money, and requires professional technical personnel to obtain accurate and objective evaluation results. In addition, the biological evaluation method is highly dependent on the current fish resources in the river section. If the river section itself has few resources, the number of fish using the fishway to upstream will also not be large, and the number of fish individuals determines whether the number used to evaluate the performance and effect of the fishway has mathematical statistical significance. In addition, the biological evaluation method ignores the influence of fishway hydraulics on fish, and cannot specifically determine the specific reasons for poor fishway effect.

[0003] Especially for vertical slit fishway, which is the most widely used and largest number of fishway type, for the river with vertical slit fishway, a fast, reliable, easy to promote and quantifiable fishway performance and effect evaluation scheme is needed to evaluate and optimize the fishway. SUMMARY

[0004] The main purpose of the present application is to disclose a fishway effect evaluation method, comprising the following steps:

[0005] Determine the fishway effect evaluation index system, the fishway effect evaluation index system includes fish passability index system and fishway hydraulic condition evaluation index system; wherein the fishway hydraulic condition evaluation index system includes fish attracting area hydraulic condition evaluation index system, import hydraulic condition evaluation index system, pool section hydraulic condition index system and export hydraulic condition evaluation index system;

[0006] The method for calculating the suitable value corresponding to the fishway effect evaluation index system is determined; the division standard for evaluation according to the suitable value is determined; the basic index data of the fishway effect evaluation system is collected; the suitable value corresponding to the fishway effect evaluation index system is calculated; and the evaluation result of the fishway effect evaluation system is generated according to the division standard; wherein one suitable value is generated by a value assignment function of multiple indexes, and the unified calculation method of the suitable value of the hydraulic condition is: wherein y j is the value assignment function corresponding to the jth index.

[0007] Further, the method for calculating the suitable value corresponding to the fishway effect evaluation index system includes:

[0008] The indexes related to the suitable value A of the hydraulic condition of the fish-attracting area corresponding to the fish-attracting area hydraulic condition evaluation index system include: the relative fish-attracting flow of the fishway and the relative position L E of the fishway inlet, and the calculation method by the value assignment function of the indexes is:

[0009] The indexes related to the suitable value En of the inlet hydraulic condition corresponding to the inlet hydraulic condition evaluation index system include: the water level difference between the fishway inlet pool and the adjacent water area the inlet water depth H En , the inlet water width b En , the water depth H WEn of the adjacent water area of the inlet, and the relative direction O En of the outlet flow of the inlet, and the calculation method by the value assignment function of the indexes is:

[0010] The indexes related to the suitable value P of the pool section hydraulic condition corresponding to the pool section hydraulic condition index system include: the water head difference between adjacent pool sections the turbulence degree W of the pool flow, the average water depth h p of the pool, and the water width b v of the vertical joint at the pool partition, and the calculation method by the value assignment function of the indexes is:

[0011]

[0012] The indexes related to the suitable value Ex of the outlet hydraulic condition corresponding to the outlet hydraulic condition evaluation index system include: the water level difference between the outlet pool and the adjacent water area the outlet water depth H Ex , the outlet water width b Ex , and the water depth b Ex of the adjacent water area of the outlet, and the calculation method by the value assignment function of the indexes is:

[0013]

[0014] Further, the fishway relative fish flow assignment function The formula is:

[0015]

[0016] Fishway entrance relative position L E assignment function L E The formula is:

[0017]

[0018] Where the fishway entrance pool room and adjacent water level difference Assignment function Related to the induced flow velocity V b And the sudden swimming speed V t The formula is:

[0019]

[0020] Fishway entrance water depth H En Assignment function f(H En ) and fish length L f , body height L h The formula is:

[0021]

[0022] The assignment function f(b En ) of the entrance water width b En Related to the tail amplitude L b The formula is:

[0023]

[0024] The assignment function f(H WEn ) of the entrance adjacent water depth H WEn Related to fish length L f , body height L h The formula is:

[0025]

[0026] The assignment function f(O En ) of the entrance outflow water flow relative direction O En Related to the angle between the flow direction of the fishway entrance and the main flow direction of the river, the formula is:

[0027]

[0028] When 90°<O En <135°, 1≤f(O En)≤5, and O En The smaller, f(O) En The larger the value;

[0029] head difference between adjacent pools assignment function With critical swimming speed V u and the speed of the sudden swimming V t It is related to gravitational acceleration g, and the formula is:

[0030]

[0031] The formula for the assignment function f(W) of the turbulence level W in the pool chamber is:

[0032]

[0033] Average water depth h in the pool p The assignment function f(h) p ) and the body length L of the fish f , body height L h The relevant formula is:

[0034]

[0035] The width b of the vertical seam at the partition of the pool chamber is... v The assignment function f(b) v ) and the amplitude of the tail swing L b The relevant formula is:

[0036]

[0037] The water level difference between the fishway outlet chamber and the adjacent water area assignment function With the induced flow velocity V b Critical swimming speed V u and the speed of sudden swimming V t The relevant formula is:

[0038]

[0039] Outlet water depth H Ex The assignment function f(H) Ex ) and the body length L of the fish f , body height L h The relevant formula is:

[0040]

[0041] Outlet water passage width b Ex The assignment function f(b) Ex ) and the amplitude of the tail swing L b The relevant formula is:

[0042]

[0043] Water depth H adjacent to the outlet WEx The assignment function f(H) WEx ) and the body length L of the fish f , body height L h The relevant formula is:

[0044]

[0045] Among them, the fishway is relatively close to the fish-attracting flow rate. The flow rate Q that attracts fish to the fishway entrance. A The flow rate Q of other fish-attracting waters in the river during fish migration. river The ratio, that is:

[0046] The flow rate Q that attracts fish to the fishway entrance A The basic flow rate Q through the interior of the fishway pool is fishway The auxiliary fish-attracting flow rate Q at the fishway entrance aux The sum, that is: Q A =Q fishway +Q aux .

[0047] Furthermore, the criteria for evaluating suitability based on the indicators are defined as follows: suitability is divided into levels, with each level corresponding to a score range for hydraulic condition suitability; the levels include: fishway performance is good, requiring no improvement or biological assessment; fishway performance is poor, requiring urgent improvement and supplementary biological assessment.

[0048] Furthermore, the basic indicator data for the fishway effectiveness evaluation system include sampled values ​​of fish passageability indicators, which include: target fish body length L. f , body height L h Tail swing amplitude L b Sensed flow velocity V b Critical swimming speed V u and the speed of sudden swimming V t Among them, the induced flow velocity V b The minimum water current velocity required for fish to migrate upstream; the critical swimming velocity V. u The maximum swimming velocity of fish under aerobic exercise; the sudden swimming velocity V. t V represents the maximum swimming speed at which fish can sustain continuous swimming for a short period of time. b <V u <V t .

[0049] Further, the basic index data of the fishway effect evaluation system also includes index data of the fishway hydraulic condition evaluation system;

[0050] The index data of the fishway hydraulic condition evaluation system further includes the following steps: numbering and grouping according to the pool room where the index data is located, obtaining the grouping quantity, and grouping categories including the number of standard pool rooms and non-standard pool rooms in the pool room section; the grouping quantity includes the number of standard pool rooms and the number of non-standard pool rooms in the pool room section.

[0051] Further, the suitable value corresponding to the fishway effect evaluation index system is calculated by bringing the fish passability index sampling value and the index data of the fishway hydraulic condition evaluation system into the calculation method of the suitable value; when the standard pool room and the non-standard pool room correspond to the same index assignment function, the final value calculation formula is:

[0052] Wherein, n is the number of standard pool rooms, m is the number of non-standard pool rooms, f(x i ) is the assignment of the i-th standard pool room index x, f(x i ) is the assignment of the j-th non-standard pool room index x, and f(x) is the assignment of the index x.

[0053] On the other hand, the present application provides a fishway effect evaluation system, which comprises:

[0054] The evaluation index system definition module is used to define the fishway effect evaluation index system and the corresponding suitable value of the fishway effect evaluation index system; the fishway effect evaluation index system includes a fish passability index system and a fishway hydraulic condition evaluation index system; wherein the fishway hydraulic condition evaluation index system includes an attractant area hydraulic condition evaluation index system, an import hydraulic condition evaluation index system, a pool room section hydraulic condition index system, and an export hydraulic condition evaluation index system; the evaluation index system definition module further includes an index relationship definition unit for defining the correlation between the suitable value and multiple indexes.

[0055] The system suitable value definition module is used to determine the suitable value corresponding to the fishway effect evaluation index system and the calculation method of the suitable value of the index, and the determination of the calculation method includes defining the assignment function of the related index;

[0056] The suitable value standard division module is used to define the division standard, divide the suitable value of the fishway effect evaluation index system into evaluation grades, and determine the evaluation results corresponding to the grades;

[0057] The basic data collection module is used to collect the basic index data of the fishway effect evaluation system;

[0058] The evaluation index calculation module is used to calculate the related suitable value and the index suitable value of the fishway effect evaluation system;

[0059] An evaluation result generation module is configured to generate evaluation results of the fishway effect evaluation system according to the division criteria;

[0060] The suitable values defined by the system suitable value definition module include: a fish-attracting area hydraulic condition suitable value A corresponding to the fish-attracting area hydraulic condition evaluation index system, an inlet hydraulic condition suitable value En corresponding to the inlet hydraulic condition evaluation index system, a pool section hydraulic condition suitable value P corresponding to the pool section hydraulic condition index system, and an outlet hydraulic condition suitable value Ex corresponding to the outlet hydraulic condition evaluation index system.

[0061] Further, the basic data acquisition module includes a data acquisition unit and an index processing unit.

[0062] The data acquisition unit is configured to acquire fish passability index sampling values and index data of the fishway hydraulic condition evaluation system, and the index processing unit is configured to perfect the index data.

[0063] According to the present application, the fishway as a whole, including the fish-attracting effect of the fish-attracting area of the fishway, the passability of the inlet of the fishway, the passability of the pool section of the fishway, and the passability of the outlet of the fishway, can be quantitatively evaluated, and the position affecting the fishway effect can be accurately diagnosed, thereby providing an accurate target for fishway optimization and improvement. BRIEF DESCRIPTION OF DRAWINGS

[0064] Figure 1 is a flow chart of the fishway effect evaluation method provided by the embodiment of the present application;

[0065] Figure 2 is an actual application flow chart of the fishway effect evaluation method provided by the embodiment of the present application;

[0066] Figure 3 is a fishway layout plan provided by the embodiment of the present application;

[0067] Figure 4 is a schematic diagram of the body length, body height and body width of target fish in a river section provided by the embodiment of the present application;

[0068] Figure 5 is a schematic diagram of the fish-attracting area, inlet, pool section and outlet of a fishway provided by the embodiment of the present application;

[0069] Figure 6 is a schematic diagram of a fishway layout large sample, relative position and water passing width of a fishway inlet provided by the embodiment of the present application;

[0070] Figure 7 is a longitudinal section view and horizontal line schematic diagram of a downstream section of a fishway provided by the embodiment of the present application;

[0071] Figure 8 is a longitudinal section view and horizontal line schematic diagram of an upstream section of a fishway provided by the embodiment of the present application;

[0072] Figure 9 is a fishway effect evaluation system structure diagram provided by an embodiment of the application. DETAILED DESCRIPTION

[0073] In the case of not being affected by the amount of fish resources under the dam, how to quantitatively evaluate the fishway is a problem to be solved by the present application, and the implementation process of the present application includes quantifying, evaluating and proposing an optimization scheme for the fishway overall and the whole process of fish passing through the fishway, including the fish-attracting effect of the fish-attracting area of the fishway, the passability of the fishway inlet, the passability of the pool room section of the fishway and the passability of the fishway outlet.

[0074] The specific implementation of the present application will be described in detail below in conjunction with the drawings of the specification.

[0075] Figure 1 A flowchart of the effect evaluation method of the fishway is provided, and the evaluation process includes the following steps:

[0076] Step S100: determining a fishway effect evaluation index system, which is used for quantitatively evaluating the hydraulic condition suitability of the fish-attracting area, inlet, pool room section and outlet of the fishway, and specifically includes a fish passability index system and a fishway hydraulic condition evaluation index system; wherein the fishway hydraulic condition evaluation index system includes a fish-attracting area hydraulic condition evaluation index system, an inlet hydraulic condition evaluation index system, a pool room section hydraulic condition index system and an outlet hydraulic condition evaluation index system;

[0077] Wherein each fishway hydraulic condition evaluation index system corresponds to a hydraulic condition suitable value, each hydraulic condition suitable value is associated with multiple indexes, and a hydraulic condition suitable value is generated by a value assignment function of multiple associated indexes, and the unified calculation method is:

[0078] Wherein, y j is the value assignment function corresponding to the jth index.

[0079] It should be noted that the suitable value mentioned in the present application includes the suitable value associated with the system as explained in this step, and the suitable value of the index directly calculated by the value assignment function.

[0080] Step S110: determining the suitable value calculation method corresponding to the fishway effect evaluation index system:

[0081] In the present application, the fishway effect evaluation system includes at least four system-related suitable values, which are: the suitable value A of the hydraulic condition of the fish attracting area corresponding to the fish attracting area hydraulic condition evaluation index system, the suitable value En of the inlet hydraulic condition corresponding to the inlet hydraulic condition evaluation index system, the suitable value P of the pool section hydraulic condition corresponding to the pool section hydraulic condition index system, and the suitable value Ex of the outlet hydraulic condition corresponding to the outlet hydraulic condition evaluation index system. The suitable values of the above four aspects of hydraulic conditions are calculated by the geometric mean of the corresponding index assignment function, and each index assignment function determines a different calculation method. In the definition process of each assignment function, the parameters corresponding to each assignment function are also confirmed, which are shown in the following table:

[0082]

[0083]

[0084] The parameters involved in the above table include the fish passability index, which reflects the habitat conditions, migration time, individual size, current-following ability and current-resisting ability required for fish migration, and specifically includes: fish body length L f , body height L h , tail swing amplitude L b , flow sensing speed V b , critical swimming speed V u , and sudden swimming speed V t .

[0085] The suitable values of each system in the above table are associated with the fish passability index and the hydraulic condition evaluation index, including the following contents:

[0086] The relative fish attracting flow of the fishway is the ratio of the flow Q A that attracts fish to approach the fishway inlet to the flow Q river that attracts fish in the river during the fish migration period; the flow Q A that attracts fish to approach the fishway inlet is the sum of the basic flow Q fishway that flows through the inside of the fishway pool and the auxiliary fish attracting flow Q aux that attracts fish to enter the fishway inlet; for a run-of-river hydropower station, the flow that attracts fish in the river during the fish migration period is the power station discharge flow during power generation; for a diversion-type hydropower station or a diversion-type reservoir, the flow Q river that attracts fish in the river is the flow through the river section at the fishway inlet; for a dam weir without power generation and diversion, the flow Q river that attracts fish in the river is the average annual flow through the river section at the fishway inlet during the fish migration period; the basic flow Q fishwayQ is the flow rate of fish passing through the vertical joint between the baffles from the upper pool chamber to the lower pool chamber of the fishway; Q aux is the flow rate of fish attracted into the fishway entrance by auxiliary fish-attracting flow;

[0087] L is the relative position of the fishway entrance E : is determined according to the ideal position with the best fish-attracting effect in theory; the ideal position with the best fish-attracting effect should meet the following three requirements: first, the entrance position is close to the river bank L E1 , second, the entrance position is as close as possible to the upstream end where fish can swim L E2 , and third, the entrance position is close to the place where the flow is concentrated L E3 ;

[0088] H is the water level difference between the fishway entrance pool chamber and the adjacent water area is the head difference between the water level of the fishway entrance and the water level of the downstream river close to the fishway entrance;

[0089] H is the water depth of the fishway entrance En is the minimum value of the difference between the water level of the fishway entrance and the elevation of the fishway entrance floor;

[0090] b is the width of the fishway entrance En is expressed as the width of the water surface of the fishway entrance;

[0091] H is the water depth of the adjacent water area of the entrance WEn is the water depth of the river environment that fish need to pass through before entering the entrance;

[0092] Q is the relative direction of the outflow of the fishway entrance En is the relative angle between the flow direction of the fishway entrance and the main flow direction of the river; the relative angle is divided into three intervals: 0-90 degrees, 90-135 degrees, and 135-180 degrees.

[0093] H is the water head difference between adjacent pool chambers is the water level difference between two consecutive pool chambers;

[0094] W is the degree of turbulence of the flow in the pool chamber, which is represented by the pool chamber energy dissipation rate, and the calculation formula is:

[0095]

[0096] In the formula, g is the acceleration caused by gravity, with a value of 9.81 m / s2; ρ is the density of water, with a unit of kg / m 3 ; is the water level difference between the pool chamber and the upper pool chamber, with a unit of m; b p is the width of the pool chamber, with a unit of m; L is the length of the pool chamber, with a unit of m; h p is the average water depth of the pool chamber, with a unit of m;

[0097] Average water depth of pool p The average value of the difference between the water surface elevation of the pool and the pool floor elevation;

[0098] Vertical joint water passing width b at pool partition v The vertical joint width of the partition;

[0099] Water level difference between the fishway outlet pool and the adjacent water area The water head difference between the water surface of the fishway outlet adjacent water area and the fishway outlet water surface;

[0100] Outlet water depth H Ex The minimum value of the difference between the outlet passage water surface elevation and the outlet floor elevation;

[0101] Outlet water passing width b Ex The water passing width at the outlet where fish leave the fishway to the river;

[0102] Outlet adjacent water area water depth H WEx The river water depth that fish need to pass after leaving the fishway outlet.

[0103] The calculation method of the suitable value of each hydraulic condition is as follows:

[0104] 1) The suitable value of the fish attracting area hydraulic condition corresponding to the fish attracting area hydraulic condition evaluation index system A, the related indexes include: fishway relative fish attracting flow And fishway inlet relative position L E The calculation method of the index assignment function is:

[0105] The assignment function of fishway relative fish attracting flow is defined as:

[0106]

[0107] Among them, the fishway relative fish attracting flow is the ratio of the flow Q A that attracts fish to approach the fishway inlet and the flow Q river that attracts fish during migration, that is:

[0108] And the flow Q A that attracts fish to approach the fishway inlet is the sum of the basic flow Q fishway through the fishway pool and the auxiliary fish attracting flow Q aux that attracts fish to enter the fishway inlet, that is: A Q fishway = Q aux . ​

[0109] Definition of fish pass inlet relative position L responding to fish pass inlet passability and hydraulic condition E Assignment function of En

[0110] f(L E ) formula is:

[0111]

[0112] 2) Inlet hydraulic condition evaluation index system corresponding to inlet hydraulic condition suitable value En, related indexes include: fish pass inlet pool room and adjacent water area water level difference Fish pass inlet water depth H En , inlet water width b En , inlet adjacent water area water depth H WEn and inlet outflow water flow relative direction O En , the calculation method of the index assignment function is:

[0113] Definition of fish pass inlet pool room and adjacent water area water level difference Assignment function of En Related to induced flow velocity V b and sudden swimming speed V t , the assignment function formula is:

[0114]

[0115] Definition of fish pass inlet water depth H En Assignment function f(H En ) related to fish L f , body height L h , the formula is:

[0116]

[0117] Definition of inlet water width b En Assignment function f(b En ) related to tail amplitude L b , the formula is:

[0118]

[0119] Definition of inlet adjacent water area water depth H WEn Assignment function f(H WEn ) related to fish body length L f , body height L h , the formula is:

[0120]

[0121] Definition of inlet outflow water flow relative direction O EnThe assignment function f(O) En The angle between the direction of the fishway inlet flow and the direction of the main river flow is related to the angle between the fishway inlet flow and the main river flow, and the formula is:

[0122]

[0123] When 90°<O En When <135°, 1≤f(O) En )≤5, and O En The smaller, f(O) En The larger the value, the better.

[0124] 3) The suitable value P of the hydraulic conditions for the pool section corresponding to the hydraulic condition index system includes: the head difference between adjacent pool sections. Turbulence level W in the pool chamber, average water depth h in the pool chamber p The width b of the vertical seam at the partition between the pool and the chamber. v The method for calculating the index using the assignment function is as follows:

[0125]

[0126] Define the head difference between adjacent pools assignment function With critical swimming speed V u and the speed of sudden swimming V t The relevant formula is:

[0127]

[0128] The formula for the assignment function f(W) of the turbulence level W in the pool chamber is defined as follows:

[0129]

[0130] Define the average water depth h in the pool chamber p The assignment function f(h) p ) and the body length L of the fish f , body height L h The relevant formula is:

[0131]

[0132] Define the width b of the vertical seam at the partition of the pool chamber. v Assignment function f(b) v ) and the amplitude of the tail swing L b The relevant formula is:

[0133]

[0134] 4) the corresponding outlet hydraulic condition suitable value Ex of the outlet hydraulic condition evaluation index system, the related indexes include: the water level difference between the outlet pool room and the adjacent water area the outlet water depth H Ex , the outlet water width b Ex , and the outlet adjacent water area water depth b Ex , the method for calculating the index assignment function is as follows:

[0135]

[0136] the assignment function of the water level difference between the outlet pool room and the adjacent water area is defined as is related to the induced flow velocity V b , the critical swimming speed V u , and the sudden swimming speed V t , and the formula is as follows:

[0137]

[0138] the assignment function f(H Ex ) of the outlet water depth H Ex is related to the fish body length L f and the body height L h , and the formula is as follows:

[0139]

[0140] the assignment function f(b Ex ) of the outlet water width b Ex is related to the tail swing amplitude L b , and the formula is as follows:

[0141]

[0142] the assignment function f(H WEx ) of the outlet adjacent water area water depth H WEx is related to the fish body length L f and the body height L h , and the formula is as follows:

[0143]

[0144] Step S120: determining the division standard for evaluation according to the suitable value;

[0145] In steps S100 and S110, the relationship between all indexes involved in the fishway effect evaluation system is defined, including the connection between indexes in the fish passability index system and the fishway hydraulic condition evaluation index system. The hydraulic conditions can be quantified through the calculation of the appropriate values of each system. In step S120, the quantified values are determined to facilitate the determination of the effect of each condition of the fishway.

[0146] For example, the fish passing effect of the site is indicated, and it is judged whether biological evaluation needs to be supplemented;

[0147] The determination of the site affecting the fish passing effect of the fishway is based on the optimization improvement level of a certain index or a certain type of index of the hydraulic condition suitability; the optimization improvement level is divided into four levels: 0, 1, 2, and 3, 0 indicating that the performance effect of the fishway is good and no improvement and biological evaluation are needed, 3 indicating that the performance effect of the fishway is poor and needs to be improved and biological evaluation needs to be supplemented; when the appropriate value is greater than 8 and less than or equal to 10, the optimization improvement level is 0; when the appropriate value is greater than 6 and less than or equal to 8, the optimization improvement level is 1; when the appropriate value is greater than or equal to 4 and less than 6, the optimization improvement level is 2; when the appropriate value is greater than or equal to 0 and less than 4, the optimization improvement level is 3.

[0148] The division standards for the improvement level of the hydraulic condition index and the necessity of biological evaluation are shown in the following table:

[0149] Suitable value (A, En, P, Ex) Optimization improvement level Necessity of biological evaluation 8 < suitable value < 10 0 Not needed 6 < suitable value < 8 1 Optional 4 < suitable value < 6 2 Recommended 0 < suitable value < 4 3 Necessary

[0150] The biological evaluation mentioned in this step is to release fish test in the site with high optimization improvement level or low index value, and the purpose is to further verify the hydraulic index suitability; the specific implementation steps are as follows: ① record the number and body length distribution of the target migratory fish to be released; ② mark and release the target migratory fish downstream of the site with high optimization improvement level or low index value; ③ track the fish that pass through the site with high optimization improvement level or low index value and swim upstream, and obtain the number and body length of the passing fish; ④ compare the data of the marked release number, fish body length, and the number and body length of the passing fish by the abundance-body length frequency method; at this time, the data comparison is to test whether the catch number (abundance) has difference and whether the fish body length data conforms to the same distribution.

[0151] Whether the catch number (abundance) has difference is realized by using two independent sample Mann-Whitney U test, and the comparison of fish body length is realized by Kolmogorov-Smirnov test to test whether the empirical distribution of two groups of data has significant difference.

[0152] Through the above steps, the fishway effect evaluation system is built.

[0153] Next, a specific case of application of the fishway effect evaluation system is proposed, and the process in actual application is as shown in Figure 2 , wherein step S210 is the process of building the fishway effect evaluation index system, step S211 determines the basic indexes of the fish passability index system, step S212 determines the basic indexes of the fishway hydraulic condition evaluation index system, in step S213, the assignment function of the hydraulic condition index is defined, and in steps S214 and S215, the suitable value of the hydraulic condition is defined. The suitable value of the hydraulic condition is a quantitative value, which is prepared for subsequent evaluation and application. Next, the specific application is described:

[0154] The fishway in this case is located in a first-order tributary of a river, as shown in Figure 3 , the fishway is arranged on the right bank of the river, close to the corner of the diagonal river weir, the total length of the river weir is 80.5m, of which the low weir part is 10.0m long and the high weir part is 70.5m long. The top elevation of the low weir is 2382.4m, and the top elevation of the high weir is 2382.5m. The low weir directs the upstream water to the vicinity of the fishway inlet, increasing the fish-attracting flow at the fishway inlet. There is a power generation diversion channel on the left bank of the river, with a channel bottom elevation of 2380.5m. The diversion channel diverts most of the upstream water to the power plant 2.5km downstream for power generation. The river section is mainly distributed with three short-distance migratory fish species, Schizothorax grahami, S. brevirostris and S. waltoni. These three species are also the main fish passing objects of the fishway. The three species are bottom-dwelling and flow-loving fish, and the fish mainly breeds from March to May each year.

[0155] For the target fishway, the fish passability index system is constructed, and the fishery catch sampling is carried out in the river section to obtain the fish passability index values, as shown in Figure 4 . The maximum body length of the target fish is 32.5cm, the maximum body height is 7.7cm, and the maximum body width is 4.5cm. The tail swing amplitude of the schizothorax is about 3 times the body width, i.e. the tail swing amplitude is 13.5cm. Through the fish swimming ability test, the target fish sensing flow rate, critical swimming speed and sudden swimming speed are 0.2m / s, 1.1m / s and 1.6m / s respectively.

[0156] Step S130: Collecting basic index data of fishway effect evaluation system;

[0157] This step is equivalent to step S221 in Figure 2 , that is, collecting basic data corresponding to the indexes of the fishway effect evaluation system, that is, generating fish passability index sampling values, including: target fish body length L f , body height L h , tail swing amplitude L b , sensing flow rate V b , critical swimming speed V uand the burst swimming speed V t ; wherein, the induced flow velocity V b is the minimum water flow velocity generated by the upstream migration of fish; the critical swimming speed V u is the maximum swimming flow velocity of fish under aerobic exercise; the burst swimming speed V t is the maximum swimming speed of fish that can be maintained for a short time, and V b < V u < V t .

[0158] In the present case, the fish passability index sampling values are shown in the following table:

[0159] Fish passability index sampling values

[0160] Serial number Index Index value 1 Fish length L f ]]> 32.5 cm 2 Body height L h ]] 7.7 cm 3 Tail wag amplitude L n ]]> Estimated according to body width 4 Induced flow velocity V b ]]> 0.2 m / s 5 Critical swimming speed V u ]]> 1.1 m / s 6 Breakout swim speed V t ]]> 1.6 m / s

[0161] The basic index data corresponding to the evaluation index of the fish pass evaluation system also includes the index data of the fish pass hydraulic condition evaluation system, such as the step S222 in the method for evaluating the fish pass hydraulic condition evaluation system. Figure 2

[0162] Before collecting the index data of the fish pass hydraulic condition evaluation system, it is necessary to conduct a tour inspection of the fish pass, and to process the related variables affecting the water flow condition index value such as the fish pass siltation degree and garbage blockage condition, so as to ensure that the water flow condition index measurement value is more representative.

[0163] Before collecting the related basic data of the pool room section, the fish pass pool room should be grouped and numbered, and the fish pass is divided into an inlet pool room, a pool room section is divided into a standard pool room and a non-standard pool room, and an outlet pool room; the inlet pool room is the first pool room of the fish pass, and the outlet pool room is the last pool room of the fish pass; the pool room is finally divided into two groups: standard pool room and non-standard pool room, and the non-standard pool room of the pool room section is the turning section pool room of the fish pass, and the other pool room section is the standard pool room.

[0164] As shown in Figure 5 , the fish pass in the present case is composed of a fish pass attraction area, an inlet, a pool room section and an outlet; the average slope of the case fish pass is 1:40; the case fish pass has 18 pool rooms, of which No. 6 pool room and No. 12 pool room are non-standard pool rooms.

[0165] Figure 5 The hydraulic condition evaluation index system is provided in the method for evaluating the fish pass hydraulic condition evaluation system, which is composed of a fish pass attraction area hydraulic condition evaluation index system, an inlet hydraulic condition index system, a pool room section hydraulic condition index system and an outlet hydraulic condition index system; the parameters affecting the index assignment function value are obtained through field investigation and monitoring, and the indexes of each index system and the parameter values of the index values are listed in the following table:

[0166] ​

[0167]

[0168] Step S140: Calculate the appropriate value corresponding to the fishway effect evaluation index system;

[0169] This step is equivalent to step S225 in Figure 2 , that is, the calculation of the appropriate value, which is to bring the fish index sampling value and the fishway hydraulic index sampling value into the calculation method of each index and function of the evaluation system. Through the calculation of this step, the function value of the appropriate value of the hydraulic condition of the fish attracting area, the hydraulic condition of the inlet, the hydraulic condition of the pool room section and the hydraulic condition of the outlet corresponding to each index is generated.

[0170] In the actual calculation process, since the fishway pool room section is composed of multiple standard pool rooms and non-standard pool rooms, the final value calculation formula of the assignment function corresponding to the same index of the standard pool room and the non-standard pool room of the pool room section is:

[0171]

[0172] Wherein, n is the number of standard pool rooms of the pool room section, m is the number of non-standard pool rooms, f(x i ) is the assignment of the i-th standard pool room index x, f(x j ) is the assignment of the j-th non-standard pool room index x, and f(x) is the assignment of the index x.

[0173] In the case proposed in the present application, the indexes in the fish attracting area hydraulic condition evaluation index system include the fishway relative fish attracting flow and the fishway inlet relative position L E ;

[0174] The basic flow Q fishway inside the fishway pool room is 0.29m 3 / s; the auxiliary fish attracting flow Q aux that attracts fish into the fishway inlet is the flow discharged from the low weir near the fishway, which is measured and calculated as Q aux equals 1.31m 3 / s; the case hydropower station is a diversion type hydropower station, and the flow Q river that attracts fish in the river is the flow passing through the river section at the fishway inlet during the fish migration period, in the case, Q river is the flow passing through the high weir of the river weir, and Q river is 3.24m 3 / s; the fishway relative fish attracting flow is 49.4%, and the fishway relative fish attracting flow assignment function equals 10;

[0175] As Figure 3 shown in the case fishway entrance position close to the river bank, the case fishway entrance is arranged at the weir corner of the weir, which is the front end of the fish upstream, and the case fishway entrance is arranged close to the place where the right bank flow is concentrated; the relative position L E of the fishway entrance meets the ideal position of the best theoretical fish attracting effect, the relative position L E of the fishway entrance is assigned a function f(L E ) equal to 10; that is, the suitable value A of the hydraulic condition of the fish attracting area is equal to 10.

[0176] The indexes in the index system of the entrance hydraulic condition include the water level difference between the fishway entrance pool and the adjacent water area , the entrance water depth H En , the entrance water width b En , the entrance adjacent water depth H WEn , and the relative direction O En of the entrance outflow; the data collection diagram of the entrance and the pool section is shown in 7.

[0177] The measured values of the entrance water width, the vertical joint water width at the pool partition, the outlet water width, the pool length, the pool width, the water head difference, and the average water depth are shown in the following table;

[0178] Index survey and measurement result table

[0179]

[0180] The water level difference between the fishway entrance pool and the adjacent water area is 12 cm, and the water level difference between the fishway entrance pool and the adjacent water area is assigned a function equal to 9.23;

[0181] The fishway entrance water depth H En is 0.85 m, and its assignment function f(H En ) is equal to 10;

[0182] The fishway entrance water width b En is 0.50 m, and its assignment function f(b En ) is equal to 10;

[0183] Through the measurement of the environmental water depth at the fishway entrance, the entrance adjacent water depth H WEn is 1.59 m, and its assignment function f(H WEn ) is equal to 10;

[0184] Figure 6 In the schematic diagram of 8, the relative direction of the entrance outflow is parallel to the main stream direction of the river downstream the dam, and the included angle is less than 90 degrees, and the relative direction O En of the entrance outflow is assigned a function f(O En ​) equals 10;

[0185] The suitable value for inlet hydraulic conditions, En, is 9.84.

[0186] The indicators in the hydraulic condition index system for the pool section include the head difference between adjacent pool sections. Turbulence level W in the pool chamber, average water depth h in the pool chamber p The width b of the vertical seam at the partition between the pool and the chamber. v ;

[0187] The water depth difference between adjacent chambers was obtained by measuring the water depth in each chamber of the fishway. As shown in the "Indicator Survey and Measurement Results Table", the head difference between adjacent pools / chambers The minimum head difference is 5cm, and the maximum head difference is 10cm. The non-standard pool room, namely pool room 6, has the largest head difference. The head difference between adjacent pool rooms is also significant. Assignment function The minimum value is 7.14, and the maximum value is 10; the head difference between adjacent pools. Assignment function The final value is 8.57;

[0188] Based on the measurement results in the "Indicator Survey Measurement Result Table", the degree of water turbulence W in each pool chamber was calculated. W ranged from 8.73 to 31.0. The assignment function f(W) for the degree of water turbulence W in each pool chamber was equal to 10. The final value of the assignment function f(W) for the degree of water turbulence W in each pool chamber was 10.

[0189] Average water depth h in each pool p See the "Indicator Survey and Measurement Results Table" for the average water depth h of each pool. p Assignment function f(h) p All values ​​are equal to 10, and the average water depth of the pool is h. p Assignment function f(h) p The final value is 10;

[0190] The width b of the vertical seam at the partition of the pool chamber is... v All are 0.3m. Through calculation, the water passage width b at the vertical gap of each pool partition is... v Assignment function f(b) v All are equal to 10, and the width of the vertical seam at the partition of the pool chamber is b. v Assignment function f(b) v The final value is 10;

[0191] The suitable hydraulic condition value P for the pool section is 9.62.

[0192] The indicators in the outlet hydraulic condition index system include the water level difference between the outlet pool chamber and the adjacent water area. Outlet water depth H ex 、Outlet water width b ExThe water depth H of the adjacent water area of the outlet WEx The schematic diagram of the pool chamber section and the outlet collecting data is shown in Fig. 8.

[0193] The water level difference between the pool chamber of the outlet and the adjacent water area The water level difference between the pool chamber of the outlet and the adjacent water area The assignment function equals 6.55;

[0194] The water depth H of the outlet Ex The water depth H of the outlet Ex The assignment function f(H Ex ) equals 10;

[0195] The outlet water width b Ex The outlet water width b Ex The assignment function f(b Ex ) equals 10;

[0196] The water depth H of the adjacent water area of the outlet WEx The water depth H of the adjacent water area of the outlet WEx The assignment function f(H WEx ) equals 10;

[0197] The suitable value of the outlet hydraulic condition Ex equals 8.99.

[0198] The final value of each index assignment function

[0199]

[0200]

[0201] Step S150: generating the evaluation result of the fishway effect evaluation system according to the division standard;

[0202] As shown in step S230 in the foregoing embodiment, the suitable value of the quantified fishway hydraulic index is calculated through the above steps, and it is judged through the evaluation standard in step S120 whether optimization is needed or biological evaluation is needed. Figure 2 In the case of the present application, the final value of each index assignment function calculated according to the table “The final value of each index assignment function” is that the suitable value of the fish-attracting area hydraulic condition A equals 10, the suitable value of the inlet hydraulic condition En equals 9.84, the suitable value of the pool chamber section hydraulic condition P equals 9.62, and the suitable value of the outlet hydraulic condition Ex equals 8.99. The optimization improvement level of the fish-attracting area, the inlet, the pool chamber section and the outlet is 0 level, the fishway as a whole can exert good fish-attracting and fish-passing effects, and the fishway does not need to be optimized and improved, and does not need to be additionally biologically evaluated.

[0203] ​

[0204] The application also provides a fishway effect evaluation system for establishing the fishway effect evaluation index system, collecting and sorting the indexes, calculating the appropriate values, and generating the evaluation results, so as to present the abstract and scattered fishway performance effects in the form of specific and systematic data to the managers, and facilitate the determination of the fishway optimization measures.

[0205] Figure 9 A system structure diagram of the fishway effect evaluation system is provided, as shown in the figure, the fishway effect evaluation system provided by the application includes the following parts:

[0206] The P910 evaluation index system definition module is used for defining the fishway effect evaluation index system, including defining the fish passability index system and the fishway hydraulic condition evaluation index system; wherein the fishway hydraulic condition evaluation index system includes the fish-attracting area hydraulic condition evaluation index system, the inlet hydraulic condition evaluation index system, the pool section hydraulic condition index system and the outlet hydraulic condition evaluation index system;

[0207] In the module, the appropriate value corresponding to each fishway effect evaluation index system is defined, and the appropriate values defined in the module include the fish-attracting area hydraulic condition appropriate value A corresponding to the fish-attracting area hydraulic condition evaluation index system, the inlet hydraulic condition appropriate value En corresponding to the inlet hydraulic condition evaluation index system, the pool section hydraulic condition appropriate value P corresponding to the pool section hydraulic condition index system, and the outlet hydraulic condition appropriate value Ex corresponding to the outlet hydraulic condition evaluation index system, which are collectively referred to as the hydraulic condition appropriate values.

[0208] Each appropriate value is associated with one or more indexes. The evaluation index system definition module further includes a P912 index relationship definition unit for defining the association relationship between each appropriate value and multiple indexes.

[0209] The appropriate value and index association relationship defined in the P912 index relationship definition unit is shown in the following table:

[0210]

[0211] The P920 system appropriate value definition module is used for determining the calculation method of the appropriate values corresponding to the fishway effect evaluation index system, and defining the assignment function of the associated indexes;

[0212] In addition to the hydraulic condition suitable value, each index in the application corresponds to an assignment function, and a suitable value is calculated by the assignment function of multiple associated indexes. The assignment function can convert the specific value of the index into the suitable value of the index conforming to the suitable value specification. For example, the suitable value specification defines the suitable value range as 0 to 10, and the index is "whether the position is close to the river bank", the corresponding value is "yes" (the value range is "yes" and "no"), and the corresponding assignment function converts the index value into the index suitable value, and the result is 10.

[0213] The suitable value of the system depends on different indexes and the assignment function of the index. In the module, the geometric mean of the assignment function of the corresponding index is calculated to generate a value between 0 and 10.

[0214] The P930 suitable value standard division module is used to define the division standard, divide the suitable value of the fishway effect evaluation index system into evaluation levels, and determine the evaluation result corresponding to the level.

[0215] For example, the optimization improvement level is divided into four levels: 0, 1, 2, and 3, and the suitable value range (0 to 10) is divided into four level division standards.

[0216] The above modules are used to establish the fishway effect evaluation index system, and the fishway effect evaluation system of the application also includes an application part:

[0217] The P950 basic data acquisition module is used to acquire the basic index data of the fishway effect evaluation system.

[0218] The basic data acquisition module includes a P951 data acquisition unit and a P952 index processing unit.

[0219] The data acquisition unit is used to acquire the fish passability index sampling value and the index data of the fishway hydraulic condition evaluation system. The fish passability index sampling value includes the basic data of fish, as shown in the table "fish passability index sampling value". The index data of the fishway hydraulic condition evaluation system refers to the data that can be obtained through the acquisition terminal, such as the basic flow Q fishway , auxiliary fish attracting flow Q aux , other flow in the river that attracts fish Q river , sensing flow rate V b , etc.

[0220] Another part of the index data that needs to be calculated and generated through the acquired data is perfected by the index processing unit, for example, the relative fish attracting flow of the fishway is calculated and generated in the index processing unit.

[0221] The P960 evaluation index calculation module is used for calculating the associated suitable values and index suitable values of the fishway effect evaluation system; the module integrates the algorithms determined in the P920 system suitable value definition module and the data obtained in the basic data acquisition module to generate the system suitable values.

[0222] The P970 evaluation result generation module is used for generating the evaluation results of the fishway effect evaluation system according to the division standards; the data source of the division is the system suitable values provided in the P960 evaluation index calculation module, and the output evaluation results are the quantitative embodiment of the fishway whole fish attracting and passing effect, and the suggestions of whether the fishway needs to be optimized and improved and whether additional biological evaluation needs to be performed.

[0223] The scheme provided in the application can quantitatively evaluate the fishway without being affected by the dam fish resource quantity; in the scheme, the fish passability index system and the water power condition index system affecting the fish passing the fishway are constructed; the factors of the fishway in various aspects are monitored and analyzed, the whole fishway and the whole process of the fish passing the fishway are evaluated, the position affecting the fishway effect can be accurately diagnosed, accurate targets for the fishway optimization and improvement are provided. In the actual application, the scheme is convenient and simple to use, can combine the originally abstract and multi-angle complex factors, and quantifies the complex factors, quantitatively evaluates the fishway in the fishway planning, design, evaluation and operation stages, makes the whole fishway engineering more convenient to manage and maintain, improves the work effectiveness, and reduces the management difficulty.

[0224] The above only discloses several specific embodiments of the application, but the application is not limited to this. Any changes that can be thought of by those skilled in the art should fall within the protection scope of the application.

Claims

1. A method for evaluating the effectiveness of fish passages, characterized in that, Includes the following steps: A fishway effectiveness evaluation index system is established, which includes a fish passageability index system and a fishway hydraulic condition evaluation index system; wherein, the fishway hydraulic condition evaluation index system includes a fish attraction area hydraulic condition evaluation index system, an inlet hydraulic condition evaluation index system, a pool section hydraulic condition evaluation index system, and an outlet hydraulic condition evaluation index system. Determine the appropriate value calculation method for the fishway effectiveness evaluation index system; Determine the categorization criteria for evaluation based on the aforementioned appropriate values; Collect basic indicator data of the fishway effectiveness evaluation system; Calculate the appropriate values ​​corresponding to the fishway effectiveness evaluation index system; Based on the aforementioned classification criteria, the evaluation results of the fishway effectiveness evaluation system are generated; The method for calculating the appropriate value corresponding to the fishway effectiveness evaluation index system includes: The indicators related to the suitability value A of the hydraulic conditions in the fish-attracting area, as defined in the hydraulic condition assessment index system for the fish-attracting area, include: the relative fish-attracting flow rate of the fishway. Relative position of fish passage entrance The method for calculating the index using the assignment function is as follows: ； The inlet hydraulic condition assessment index system includes indicators related to the inlet hydraulic condition suitability value En, such as the water level difference between the fishway inlet chamber and the adjacent water area. Fishway inlet water depth , Imported water width Water depth of the adjacent waters at the import point Relative direction of inlet and outlet water flow The method for calculating the index using the assignment function is as follows: ； The indicators related to the suitability value P of the hydraulic conditions in the pool section, as defined in the pool section hydraulic condition index system, include: the head difference between adjacent pool sections. Degree of turbulence in the pool chamber Average water depth of the pool Vertical seam width at the partition between the pool and the chamber The method for calculating the index using the assignment function is as follows: ； The relevant indicators for the outlet hydraulic condition suitability value Ex corresponding to the outlet hydraulic condition assessment index system include: the water level difference between the outlet pool chamber and the adjacent water area. , outlet water depth , export water width Water depth adjacent to the outlet The method for calculating the index using the assignment function is as follows: ； Among them, the suitability value mentioned in one item is calculated and generated by the assignment function of multiple indicators, and the unified calculation method for the suitability value of hydraulic conditions is as follows: ， in, The above is the first The assignment function corresponding to each indicator.

2. The method for evaluating the effectiveness of fish passages according to claim 1, characterized in that, The fishway relative fish-attracting flow assignment function The formula is: ； The relative position of the fishway inlet assignment function The formula is: ； The water level difference between the fishway inlet chamber and the adjacent water area assignment function With sensing flow rate and sudden swimming speed The relevant formula is: ; The water depth at the fishway inlet assignment function with fish body length , body height The relevant formula is: ; The inlet water passage width assignment function With tail swing amplitude The relevant formula is: ; The water depth of the water area adjacent to the inlet Assignment function Compared with the body length of fish , body height The relevant formula is: The relative directions of the inlet and outlet water flows assignment function The angle between the direction of the fishway inlet flow and the direction of the main river flow is related to the angle between the two, and the formula is: ； when hour, ,and The smaller, The larger the value; The head difference between adjacent pools assignment function With critical swimming speed and sudden swimming speed It is related to gravitational acceleration g, and the formula is: ； The degree of turbulence in the pool chamber assignment function The formula is: ； The average water depth of the pool chamber assignment function with fish body length , body height The relevant formula is: ； The width of the vertical seam at the partition of the pool chamber for water passage assignment function With tail swing amplitude The relevant formula is: ; The water level difference between the fishway outlet chamber and the adjacent water area assignment function With sensing flow rate Critical swimming speed and sudden swimming speed The relevant formula is: ; The outlet water depth assignment function with fish body length , body height The relevant formula is: ； The outlet water passage width assignment function With tail swing amplitude The relevant formula is: ； The water depth of the water adjacent to the outlet assignment function with fish body length , body height The relevant formula is: 。 3. The method for evaluating the effectiveness of fish passages according to claim 2, characterized in that... : The fishway relative fish-attracting flow It is the flow rate that attracts fish to the fishway entrance. The flow of other fish-attracting substances in the river during fish migration The ratio, that is: The flow rate that attracts fish to the fishway inlet It is the basic flow rate through the interior of the fishway pool. Auxiliary fish-attracting flow rate to attract fish into the fishway entrance The sum is: 。 4. The fishway effectiveness evaluation method according to claim 1, characterized in that, The criteria for determining the appropriate values ​​of the indicators are as follows: The suitability is divided into levels, and the levels correspond to the score ranges of the hydraulic condition suitability. The classification includes: fishway performance is good and no improvement or biological assessment is required; fishway performance is poor and urgently needs improvement, requiring supplementary biological assessment.

5. The method for evaluating the effectiveness of fish passages according to claim 2, characterized in that, The collection of basic index data for the fishway effectiveness evaluation system includes the collection of sampled values ​​of fish passageability indicators, which include: Target fish body length , body height Tail swing amplitude Sensing flow rate Critical swimming speed and sudden swimming speed ; Wherein, the sensed flow rate The minimum water flow velocity required for fish to migrate upstream; the critical swimming velocity. The maximum swimming velocity of fish under aerobic exercise; the sudden swimming velocity This refers to the maximum swimming speed that fish can maintain for a short period of time. .

6. The method for evaluating the effectiveness of fish passages according to claim 5, characterized in that, The collection of basic index data for the fishway effectiveness evaluation system also includes the collection of index data for the fishway hydraulic conditions evaluation system; Before collecting the index data of the fishway hydraulic condition assessment system, the method further includes: numbering and grouping the pool rooms where the index data is located, and obtaining the number of the groups. The group categories include: the number of standard pool rooms and the number of non-standard pool rooms in the pool room section; the number of groups includes: the number of standard pool rooms and the number of non-standard pool rooms in the pool room section.

7. The fishway effectiveness evaluation method according to claim 6, characterized in that, The method for calculating the appropriate value corresponding to the fishway effectiveness evaluation index system involves inputting the sampled values ​​of the fish passageability index and the index data of the fishway hydraulic conditions evaluation system into the calculation method for the appropriate value. Wherein, when the standard and non-standard pool sections correspond to the same index assignment function, the final value calculation formula is as follows: in, This refers to the standard number of pool chambers in the pool chamber section. The number of non-standard pool rooms, For the first Standard pool room indicators The assignment, For the first Non-standard pool room indicators The assignment, As an indicator The assignment.

8. A fishway effectiveness evaluation system, characterized in that, The steps for performing the fishway effectiveness evaluation method as described in claim 1 include: The evaluation index system definition module is used to define the fishway effectiveness evaluation index system, which corresponds to suitable values. The fishway effectiveness evaluation index system includes a fish passageability index system and a fishway hydraulic condition evaluation index system. The fishway hydraulic condition evaluation index system includes hydraulic condition evaluation index systems for the fish attraction area, inlet, pool section, and outlet. The evaluation index system definition module also includes an index relationship definition unit, used to define the correlation between the suitable values ​​and multiple indicators. System suitability value definition module: used to determine the suitable value of the fishway effect evaluation index system and the calculation method of the suitable value of the related index. Determining the calculation method includes defining the assignment function of the related index. Suitable value standard classification module: used to define classification standards, classify the suitable values ​​of the fishway effect evaluation index system into evaluation levels, and determine the evaluation results corresponding to the levels; Basic data acquisition module: used to collect basic indicator data of the fishway effectiveness evaluation system; Evaluation index calculation module: used to calculate the appropriate values ​​of the correlation and indexes of the fishway effect evaluation system; Evaluation result generation module: used to generate evaluation results of the fishway effectiveness evaluation system based on the classification criteria; The suitable values ​​defined in the system suitable value definition module include: the suitable value A of the hydraulic conditions of the fish-attracting area corresponding to the hydraulic condition evaluation index system of the fish-attracting area, the suitable value En of the inlet hydraulic conditions corresponding to the inlet hydraulic condition evaluation index system, the suitable value P of the hydraulic conditions of the pool section corresponding to the pool section hydraulic condition index system, and the suitable value Ex of the outlet hydraulic conditions corresponding to the outlet hydraulic condition evaluation index system.

9. The fishway effectiveness evaluation system according to claim 8, characterized in that, The basic data acquisition module includes a data acquisition unit and an indicator processing unit; The data acquisition unit is used to collect sampled values ​​of fish accessibility indicators and index data of the fishway hydraulic condition assessment system; The indicator processing unit is used to improve the indicator data.

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