SBM water environment bearing capacity evaluation method considering unexpected output

Abstract

The invention discloses a slacks-based measure model (SBM)-based water environment bearing capacity evaluation method considering unexpected output, and aims to provide a scientific basis for regional water environment management and protection. The method comprises the following steps: (1) selecting an input element index, an expected output index and an unexpected output index, and constructing a basin water environment bearing capacity input-output index system; (2) evaluating the bearing capacity of the water environment by applying an SBM model considering unexpected output; (3), carrying out the prediction of the bearing capacity of the water environment through an autoregressive moving average (ARMA) model (autoregressive moving average (ARMA)); and (4) analyzing and judging the influence direction and strength of the influence factors on the bearing capacity of the water environment by using Tobit regression. The SBM model considering the unexpected output is introduced into the water environment bearing capacity evaluation for the first time, and the water environment bearing capacity is reflected by utilizing the water pollution discharge performance.

Description

technical field [0001] The invention relates to an evaluation method of SBM water environment carrying capacity considering undesired output, and belongs to the technical field of water conservancy comprehensive evaluation. Background technique [0002] The research methods of water environment carrying capacity mainly include index system method, system dynamics and multi-objective programming method. Among them, the index system method is the most widely used, and the evaluation methods include vector model method, fuzzy comprehensive evaluation method, principal component analysis and so on. The evaluation results of the index system method comprehensively reflect the coordinated development level of the economy, society and water environment in a certain stage of the region. Scholars have carried out a lot of research in this field and achieved rich results. However, there are few studies that reflect the coordinated development level of regional economy, society and w...

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Problems solved by technology

However, there are few studies that reflect the coordinated development level of regional economy, society and water environment through the discharge performance of water pollutants.

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