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A method to determine the causal relationship between water resources and ecological environment based on Granger test

A causal relationship and ecological environment technology, applied in the direction of resources, general water supply conservation, data processing applications, etc., can solve problems such as overfitting, failure, improper selection of polynomial fitting index, etc., to achieve improved accuracy and clear direction Effect

Active Publication Date: 2022-08-09
TIANJIN UNIV
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Problems solved by technology

[0003] Existing technologies mostly rely on traditional correlation and regression analysis to study the impact mechanism and mechanism of action between water resources and the ecological environment, which have corresponding limitations. For example, improper selection of polynomial fitting index can easily lead to overfitting collinearity; standard linear regression will fail if there is high collinearity between the feature variables

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  • A method to determine the causal relationship between water resources and ecological environment based on Granger test
  • A method to determine the causal relationship between water resources and ecological environment based on Granger test
  • A method to determine the causal relationship between water resources and ecological environment based on Granger test

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments in the present application and the technical features in the embodiments may be combined with each other under the condition of no conflict. It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The use of "comprising" or "comprising" and similar words in the present disclosure means that the elements or things appearing before the word encompass the elements or things listed after the word and their equivalents, but do not exclude other elements or things.

[0032] like figure 1 As shown, the present invention provides a method for determining the causal relationship between water resources and ecological environment based on the Granger test...

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Abstract

The invention discloses a method for determining the causal relationship between water resources and ecological environment based on Granger test. Test; S3: perform co-integration on the above two time series to determine whether there is an equilibrium relationship between the two; S4: establish a coupling model of water footprint and ecological footprint, and use the coupling model to calculate the coupling degree value of the above two time series; S5: Perform Granger causality verification on the water footprint time series and the ecological footprint time series; S6: Build a regression model, and use the regression model to calculate F statistics; S7: According to the F statistics, Combined with the F test critical table, determine the causal relationship between water resources and ecological environment. The present invention utilizes Granger causality check to establish the causal relationship between the data, the directivity is clear, the construction of the relationship conforms to reality, and the accuracy is improved compared with the existing scheme.

Description

technical field [0001] The invention relates to the technical field of ecological hydrology, in particular to a method for determining the causal relationship between water resources and ecological environment based on Granger test. Background technique [0002] Since human society began to develop and utilize water resources, the natural one-dimensional water cycle structure has been broken, and a "nature-society" dual water cycle structure has been formed. The formation of the social water cycle, on the one hand, expands the service function of water resources from the natural ecological and environmental categories to the social and economic categories, but also due to the dynamic interdependence between the social water cycle and the natural water cycle. The discharge of social and economic pollutants with the water cycle as the carrier makes the natural ecological and environmental service functions affected while the water resources play the social and economic service...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/0639G06Q50/26Y02A20/152
Inventor 谷新晨龙爱华张沛张云蕾庞宁张继刘静
Owner TIANJIN UNIV
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