River health evaluation method and evaluation device

An evaluation method and technology of rivers, applied in measuring devices, instruments, surveying and mapping and navigation, etc., can solve problems such as inapplicability

Active Publication Date: 2018-06-22
CHINA THREE GORGES PROJECTS DEV CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Conversely, for rivers without dams, the changes in hydrological parameters of the river mainly come from changes in meteorological conditions such as precipitation and tem

Method used

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  • River health evaluation method and evaluation device
  • River health evaluation method and evaluation device
  • River health evaluation method and evaluation device

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Experimental program
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Effect test

Embodiment 1

[0097] Embodiment 1 of the present application proposes a kind of evaluation method of river health, such as figure 1 Shown is a flow chart of the method, and the specific steps are as follows:

[0098] S100. Collect hydrological parameters of the river to be evaluated in a set time period, the hydrological parameters include flow, water temperature, precipitation and air temperature of the river to be evaluated, and the set time period includes a first time period and a second time period.

[0099] Among them, the set time period is the pre-set time period for the assessment of the river to be evaluated. For example, the river health of the river to be evaluated in the past 20 years can be taken as the first time period from nearly 20 years to nearly 10 years. The second time period is nearly 10 years. The first time period generally selects the year when human activities have the least impact on the river, and the first time period is used as the reference year for the secon...

Embodiment 2

[0191] Embodiment 2 of the present application proposes a river health evaluation device, such as Figure 5 As shown, it includes: an acquisition module 501 , a fitting module 502 , a determination module 503 and an evaluation module 504 .

[0192] The collection module 501 is used to collect the hydrological parameters of the river to be evaluated in a set time period, the hydrological parameters include the flow, water temperature, precipitation and air temperature of the river to be evaluated, and the set time period includes the first time period and the second time period;

[0193] The fitting module 502 is used for fitting the flow and precipitation in the first time period according to the first set relationship between the flow in the set time period and the precipitation to obtain a first fitting coefficient; Fitting the flow and precipitation in the second time period to obtain a second fitting coefficient;

[0194] And, according to the second set relationship bet...

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Abstract

The invention provides a river health evaluation method and evaluation device. The method comprises the following steps: collecting the hydrological parameters of a to-be-evaluated river in set time periods, wherein the hydrological parameters comprise the flow rates and water temperature of the river, the amounts of precipitation and air temperature; subjecting the flow rate and the precipitationamount in a first time period to fitting so as to obtain a first fitting coefficient; subjecting the flow rate and the precipitation amount in a second time period to fitting so as to obtain a secondfitting coefficient; subjecting the water temperature and the air temperature in the first time period to fitting so as to obtain a third fitting coefficient; subjecting the water temperature and theair temperature in the second time period to fitting so as to obtain a fourth fitting coefficient; determining the flow rate variation coefficient of the to-be-evaluated river in the set time periodsaccording to the first fitting coefficient and the second fitting coefficient; determining the water temperature variation coefficient of the to-be-evaluated river in the set time periods according to the third fitting coefficient and the fourth fitting coefficient; and evaluating the health level of the to-be-evaluated river according to the flow rate variation coefficient and the water temperature variation coefficient. The river health evaluation method and evaluation device of the invention can evaluate the health level of a dam-free river.

Description

technical field [0001] The present application relates to the technical field of water area monitoring, in particular, to an evaluation method and evaluation device for river health. Background technique [0002] Natural rivers often have complex functions and play an important role in both human society and the natural environment. At the same time, the development and utilization of rivers by humans has also affected the various functions of rivers, especially their ecological functions are often neglected in the process of development and utilization of rivers. As a tool, river health assessment has been gradually applied in the process of river assessment and management, providing an important basis for river protection. [0003] Most of the existing river evaluations are comprehensive evaluations, that is, various parameters such as hydrology, water quality, habitats, and ecosystems are included in the evaluation system for measurement and analysis. Among them, the ev...

Claims

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Application Information

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IPC IPC(8): G01C13/00
CPCG01C13/00
Inventor 李海英王鲁海王小明于江刘晓志张永生朱昕卢佳罗小林谭亚男
Owner CHINA THREE GORGES PROJECTS DEV CO LTD
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