Input-output analysis method of regional complex water resource system, electronic equipment and storage medium

Abstract

The invention discloses an input-output analysis method of a regional complex water resource system, electronic equipment and a storage medium. The method comprises the following steps: S1, based on multi-region water consumption data and input-output data, constructing a multi-region environment expansion type input model; s2, calculating a bidirectional resource input integral matrix by adopting an induction method according to the resource input amount among the departments; s3, node input and output flow is defined, forward and backward dimensionless matrixes are calculated, an integral utility matrix is calculated, an ecological network model is determined, and an ecological network relation is obtained; and S4, carrying out relationship analysis and benefit analysis on the ecological network to obtain an ecological network evaluation result of the water resource system. According to the method, the advantages of the input-output model and the network analysis model can be integrated, the resource system is analyzed from the aspects of the resource footprint and the network, and the regional resource survival trade network system can be comprehensively evaluated in multiple aspects.

Description

Technical Field

[0001] The present invention belongs to the field of input-output analysis, and specifically relates to an input-output analysis method, electronic equipment and storage medium for a regional complex water resource system. Background Art

[0002] The analysis of resource flow and trade is the premise for a country or region to rationally develop and utilize resources, and is also the basis for scientific planning, protection and management of non-renewable resources. However, with the rapid growth of population, accelerated urbanization and climate change, the contradiction between supply and demand of various resources has become increasingly prominent, resulting in the further aggravation of the complexity of resource systems and the enhancement of the interactivity of resource systems between regions. The traditional input-output analysis method can only calculate the resource flow pattern between regions or departments, but cannot analyze the connection caused by these flows, which will lead to problems such as incomplete and incomplete analysis of resource systems. To this end, the present invention improves the input-output analysis method, starting from the resource trade and production network, and changes the problem of incomplete analysis of resource flows by the traditional input-output analysis method. Summary of the invention

[0003] In view of the difficulties in dealing with the analysis of multi-regional interactive resource systems in the prior art, the present invention provides an input-output analysis method, electronic device and storage medium for a regional complex water resource system, which better solves the problem that the traditional input-output analysis method is incomplete in the analysis of resource flows.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an input-output analysis method for a regional complex water resources system, comprising the following steps:

[0005] S1. Based on multi-regional water use data and input-output data, a multi-regional environmental expansion input model is constructed;

[0006] S2. According to the resource input between departments, the two-way resource input integral matrix is ​​calculated by induction method;

[0007] S3, define the node input and output flow, calculate the forward and backward dimensionless matrices, calculate the integral utility matrix, determine the ecological network model, and obtain the ecological network relationship;

[0008] S4. Analyze the ecological network relationship and benefit analysis to obtain the ecological network evaluation results of the water resources system.

[0009] Furthermore, the aforementioned step S1 includes the following sub-steps:

[0010] S1.1. Collect multi-regional national economic data, including: multi-regional national economic sector structure, input-output table, resource consumption, GDP;

[0011] S1.2. Construct a multi-regional environmental expansion input model based on multi-regional national economic data and calculate the resource consumption of each department.

[0012] Furthermore, the aforementioned step S1.2 includes the following sub-steps:

[0013] S1.2.1. Use the linear model to establish a multi-regional environmental expansion investment model as follows:

[0014]

[0015] Among them, T i represents the total input of department i, T j represents the total input of department j, t i,j represents the input of department j to department i, and b represents a constant;

[0016] S1.2.2. Calculate the resource input of each department based on the multi-regional environmental expansion model. The resource input is calculated as follows:

[0017]

[0018] Where TW represents the total water consumption in multiple regions, TG represents the gross domestic product, W represents the resource input of sector i, and T i represents the total input of department i, w j,i represents the amount of resources that department i inputs to department j, n represents the number of departments, and t j,i Represents the input of department i to j.

[0019] Furthermore, the aforementioned step S2 includes the following sub-steps:

[0020] S2.1, initialize the counting unit m = 1,

[0021] S2.2, when m=1, calculate the first resource input of each department to other departments, that is, the direct input:

[0022] S2.3, let the counting unit m = m + 1, and calculate the next m + 1 resource inputs made by each department after receiving the previous inputs from other departments. S2.4. Order Among them, f(nor) r i,j Satisfies: When m = nor,

[0023] S2.5, let m = nor + 1, judge Is it equal to If yes, execute step S2.6; otherwise, return to execute step S2.4;

[0024] S2.6, pass calculate The value of , at this time the bidirectional resource investment integral matrix is:

[0025]

[0026] Among them, G represents the forward resource complete consumption integral matrix, and G' represents the backward resource complete consumption integral matrix;

[0027] Furthermore, the aforementioned step S3 includes the following sub-steps:

[0028] S3.1. Calculate the integral utility matrix U and determine the ecological network model. The integral utility matrix U is calculated as follows:

[0029]

[0030] S3.2. Determine the ecological network relationships based on the diagonal elements of matrix U, including competitive relationships, symbiotic relationships, control relationships, and dependent relationships.

[0031] Furthermore, the aforementioned step S4 includes the following sub-steps:

[0032] S4.1. Calculate the ecological network ascendency as follows:

[0033]

[0034] Among them, TST represents the total circulation, which is the sum of total input and total output;

[0035] S4.2. Calculate the development of the ecological network as follows:

[0036]

[0037] Among them, TST represents the total circulation, that is, the sum of total input and total output, and a, b, and c are constants.

[0038] S4.3. Calculate the robustness of the ecological network as follows:

[0039] SR=aA / C×ln(A / C)+b,

[0040] Among them, SR represents system robustness, A represents network ascendancy, C represents network development, and a and b are both constants.

[0041] Another aspect of the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any one of the methods of the present invention when executing the computer program.

[0042] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of any method of the present invention when executed by a processor.

[0043] Compared with the prior art, the beneficial technical effects of the present invention using the above technical solution are as follows:

[0044] 1. The input-output method described in the present invention is based on the perspective of the complete resource footprint, which not only considers the physical flow of resources, but also the indirect and implicit flow of resources, sees the essence through the phenomenon, and makes the analysis of the resource system more comprehensive.

[0045] 2. The present invention analyzes the resource trade and production networks of multiple regions from a network perspective, taking into account the interactivity and network relationships of resource systems between regions, making up for the limitations of traditional input-output analysis. It can not only reveal the network relationships in resource production and trade networks, but also provide a basis for resource management in various regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a flow chart of the present invention;

[0047] Figure 2 This is the ecological network relationship diagram calculated by the present invention.

[0048] Figure 3 System robustness plot calculated for the present invention. DETAILED DESCRIPTION

[0049] In order to better understand the technical content of the present invention, specific embodiments are given and described as follows in conjunction with the accompanying drawings.

[0050] Various aspects of the invention are described herein with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the invention are not limited to those described in the accompanying drawings. It should be understood that the invention is implemented by any of the various concepts and embodiments described above, as well as the concepts and embodiments described in detail below, because the concepts and embodiments disclosed in the invention are not limited to any implementation. In addition, some aspects disclosed in the invention may be used alone or in any appropriate combination with other aspects disclosed in the invention.

[0051] like Figure 1 As shown, the present invention provides an input-output analysis method for a regional complex water resources system, comprising the following steps:

[0052] S1. Based on multi-regional water use data and input-output data, a multi-regional environmental expansion input model is constructed;

[0053] S2. According to the resource input between departments, the two-way resource input integral matrix is ​​calculated by induction method;

[0054] S3, define the node input and output flow, calculate the forward and backward dimensionless matrices, calculate the integral utility matrix, determine the ecological network model, and obtain the ecological network relationship;

[0055] S4. Analyze the ecological network relationship and benefit analysis to obtain the ecological network evaluation results of the water resources system.

[0056] As a preferred embodiment of the present invention, step S1 includes the following sub-steps:

[0057] S1.1. Collect national economic data of multiple regions, including: national economic sector structure, input-output table, resource consumption, and GDP of the region to be analyzed;

[0058] S1.2. Construct a multi-regional environmental expansion input model based on multi-regional national economic data and calculate the resource consumption of each department.

[0059] As a preferred embodiment of the present invention, step S1.2 includes the following sub-steps:

[0060] S1.2.1. Use a linear model to describe the input patterns of different departments and establish the input model of each department as follows:

[0061]

[0062] Among them, T i represents the total input of department i, T j represents the total input of department j, t i,j represents the input of department j to department i, and b represents a constant;

[0063] S1.2.2. Establish a linear input equation to linearly allocate resource usage to specific departments. Calculate the resource input of each department based on the multi-regional environmental expansion input model. The resource input calculation is as follows:

[0064]

[0065] Where TW represents the total water consumption in multiple regions, TG represents the gross domestic product, W represents the resource input of sector i, and T i represents the total input of department i, w j,i represents the amount of resources that department i inputs to department j, n represents the number of departments, and t j,i Represents the input of department i to j.

[0066] As a preferred embodiment of the present invention, step S2 includes the following sub-steps:

[0067] S2.1, initialize the counting unit m = 1,

[0068] S2.2, when m=1, calculate the first resource input of each department to other departments, that is, the direct input:

[0069] S2.3, let the counting unit m = m + 1, and calculate the next m + 1 resource inputs made by each department after receiving the previous input from other departments. S2.4. Order Among them, f(nor) r i,j Satisfies: When m = nor,

[0070] S2.5, let m = nor + 1, judge Is it equal to If yes, execute step S2.6; otherwise, return to execute step S2.4;

[0071] S2.6, through calculate The value of , at this time the bidirectional resource investment integral matrix is:

[0072]

[0073] Among them, G represents the forward resource complete consumption integral matrix, and G' represents the backward resource complete consumption integral matrix;

[0074] As a preferred embodiment of the present invention, step S3 includes the following sub-steps:

[0075] S3.1. Calculate the integral utility matrix U and determine the ecological network model. The integral utility matrix U is calculated as follows:

[0076]

[0077] S3.2. Determine the ecological network relationships based on the diagonal elements of matrix U, including competitive relationships, symbiotic relationships, control relationships, and dependent relationships.

[0078] As a preferred embodiment of the present invention, step S4 includes the following sub-steps:

[0079] S4.1. Calculate the ecological network ascendency as follows:

[0080]

[0081] Among them, TST represents the total circulation, which is the sum of total input and total output;

[0082] S4.2. Calculate the development of the ecological network as follows:

[0083]

[0084] Among them, TST represents the total circulation, that is, the sum of total input and total output, and a, b, and c are constants.

[0085] S4.3. Calculate the robustness of the ecological network as follows:

[0086] SR=aA / C×ln(A / C)+b,

[0087] Among them, SR represents system robustness, A represents network ascendancy, C represents network development, and a and b are both constants.

[0088] Another aspect of the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any one of the methods of the present invention when executing the computer program.

[0089] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of any method of the present invention when executed by a processor.

[0090] In order to demonstrate the effect achieved by the present invention, the present invention selected the water resources analysis results of nine provinces in the Yellow River Basin for comparative study. Figure 2 The ecological network relationship diagram calculated by the present invention is shown. The symbiotic relationship, competitive relationship, control relationship, and dependency relationship of each region are shown in the figure. Figure 3 The robustness of the system calculated for the present invention is shown. Table 1 shows the water footprint transfer results of nine provinces. In the table, the flow of the region itself is set to 0, and the flow of the region itself is not considered. The trade and transfer of water footprint lays the foundation for the subsequent ecological network analysis. Figure 2 This is the ecological network relationship diagram of nine provinces. It can be seen that the Yellow River Basin mainly presents a competitive relationship. Figure 3 It is the robustness diagram of the water resources system. It can be seen from the figure that the robustness value of the water resources system is on the left side of the highest value, indicating that the network benefit of the water resources system in the study area is in a state of low efficiency and high redundancy.

[0091] Table 1

[0092] <![CDATA[Unit: 100 million m 3 > Shandong Shanxi Inner Mongolia Henan Sichuan Shaanxi Gansu Qinghai Ningxia Total outflow Shandong 0.00 0.29 0.45 1.52 0.38 0.70 0.14 0.05 0.21 3.74 Shanxi 2.04 0.00 1.70 2.89 0.12 1.65 0.43 0.18 0.36 9.37 Inner Mongolia 1.28 0.51 0.00 5.02 1.20 1.09 0.29 0.42 0.28 10.10 Henan 0.86 1.08 1.27 0.00 0.98 1.33 0.39 0.12 0.38 6.42 Sichuan 0.47 0.53 0.51 1.03 0.00 0.57 0.11 0.02 0.12 3.36 Shaanxi 0.23 0.09 0.03 0.13 0.48 0.00 0.04 0.05 0.05 1.10 Gansu 1.39 0.47 0.44 2.52 0.89 0.29 0.00 0.09 0.39 6.49 Qinghai 0.75 0.46 0.21 0.58 1.03 0.40 0.09 0.00 0.60 4.12 Ningxia 3.57 1.49 0.46 3.49 0.95 1.93 0.42 0.13 0.00 12.44 Total Inflow 10.59 4.94 5.07 17.17 6.04 7.95 1.91 1.07 2.40

[0093] Although the present invention has been described above with preferred embodiments, it is not intended to limit the present invention. A person skilled in the art of the present invention may make various modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the definition of the claims.

Claims

1. An input-output analysis method for a regional complex water resources system, characterized in that: The steps include: S1. Based on multi-regional water use data and input-output data, a multi-regional environmental expansion input model is constructed; S2. According to the resource input between departments, the two-way resource input integral matrix is ​​calculated by induction method; S3, define the node input and output flow, calculate the forward and backward dimensionless matrices, calculate the integral utility matrix, determine the ecological network model, and obtain the ecological network relationship; S4. Analyze the ecological network relationship and benefit analysis to obtain the ecological network evaluation results of the water resources system.

2. The input-output analysis method of a regional complex water resources system according to claim 1 is characterized in that: Step S1 includes the following sub-steps: S1.

1. Collect multi-regional national economic data, including: multi-regional national economic sector structure, input-output table, resource consumption, GDP; S1.

2. Construct a multi-regional environmental expansion input model based on multi-regional national economic data and calculate the resource consumption of each department.

3. The input-output analysis method of a regional complex water resources system according to claim 2 is characterized in that: Step S1.2 includes the following sub-steps: S1.2.

1. Use the linear model to establish a multi-regional environmental expansion investment model as follows: Among them, T i represents the total input of department i, T j represents the total input of department j, t i,j represents the input of department j to department i, and b represents a constant; S1.2.

2. Calculate the resource input of each department based on the multi-regional environmental expansion model. The resource input is calculated as follows: Where TW represents the total water consumption in multiple regions, TG represents the gross domestic product, W represents the resource input of sector i, and T i represents the total input of department i, w j,i represents the amount of resources that department i inputs to department j, n represents the number of departments, and t j,i Represents the input of department i to j.

4. The input-output analysis method of a regional complex water resources system according to claim 3 is characterized in that: Step S2 includes the following sub-steps: S2.1, initialize the counting unit m = 1, S2.2, when m=1, calculate the first resource input of each department to other departments, that is, the direct input: (w i r ) 1 =([w i,1 r ,…,w r i,j ,…,w i,n r ]) 1 , S2.3, let the counting unit m = m + 1, and calculate the next m + 1 resource inputs made by each department after receiving the previous input from other departments, (w i r ) m+1 =([w i,1 r ,…,w r i,j ,…,w i,n r ]) m+1 , S2.4, let (θ i r ) nor =([f(nor) r i,1 ,…,f(nor) r i,j ,…,f(nor) r i,n ]), where f(nor) r i,j Satisfies: When m = nor, S2.5, let m = nor + 1, judge (θ i r ) m Is it equal to (w i r ) m , then execute step S2.6, otherwise return to execute step S2.4; S2.6, by (θ i r ) nor Calculate (w i r ) n The value of , at this time the bidirectional resource investment integral matrix is: Among them, G represents the forward resource complete consumption integral matrix, and G' represents the backward resource complete consumption integral matrix.

5. The input-output analysis method of a regional complex water resources system according to claim 4 is characterized in that: Step S3 includes the following sub-steps: S3.

1. Calculate the integral utility matrix U and determine the ecological network model. The integral utility matrix U is calculated as follows: S3.

2. Determine the ecological network relationships based on the diagonal elements of matrix U, including competitive relationships, symbiotic relationships, control relationships, and dependent relationships.

6. The input-output analysis method of a regional complex water resource system according to claim 4 is characterized in that: Step S4 includes the following sub-steps: S4.

1. Calculate the ecological network ascendency as follows: Among them, TST represents the total circulation, which is the sum of total input and total output; S4.

2. Calculate the development of the ecological network as follows: Among them, TST represents the total circulation, that is, the sum of total input and total output, and a, b, and c are constants; S4.

3. Calculate the robustness of the ecological network as follows: SR=aA / C×ln(A / C)+b, Among them, SR represents system robustness, A represents network ascendancy, C represents network development, and a and b are both constants.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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