Lake nutrient source control technique and performance evaluation method

Abstract

The invention discloses a lake nutrient source control technique and a performance evaluation method. The performance evaluation method comprises the following steps: building a system dynamics model coupling a river basin resource-environment-an economic system, designing a river basin developing sight scheme, building an environmental social economic accounting matrix (ESAM) containing nitrogen and phosphorus nutrient accounts in the river basin and a unit nitrogen and phosphorus discharge performance evaluation system, namely an environmental price system, adjusting industrial structures according to the system, introducing a computable general equilibrium (CGE) model, simulating influence comprehensive analysis sight input data and model results of economy and environment caused by industrial restructuring, introducing a data envelopment analysis method, and determining optimal nitrogen and phosphorus reduction and economic-coordinated development schemes. The technique method provides basis for formulation of lake nutrient source reduction and area economic pattern prioritization schemes, forms an integrated lake nutrient nitrogen and phosphorus reduction technique integration system with goal-process-simulation-decision, achieves lake nutrient source control, and achieves a purpose of structural discharge reduction.

Description

technical field [0001] The invention relates to the field of resources and environment management, more specifically, it is a performance evaluation method for studying the nitrogen and phosphorus discharge of lake nutrients in different industries and industries, and is one of the standards for optimizing the economic structure. Background technique [0002] The fresh water accumulated in the lake is one of the important water sources for industrial and agricultural production and residential water. However, in recent years, the problem of water pollution in my country has become prominent, and the problem of eutrophication of lakes has become increasingly serious. At present, scholars at home and abroad generally believe that the two nutrients nitrogen and phosphorus are the main factors leading to the eutrophication of lakes, and they are also the main nutrients needed for the growth of aquatic plants (Jin Xiangcan 1995). With the rapid development of social economy, the...

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Problems solved by technology

However, the patent does not have a strong focus on the sensitivity of the economic system to nitrogen and phosphorus emissions, and cannot quickly and efficiently provide a scientific basis for economic policy formulation in areas with severe lake trophication

At the same time, the patent and published literature have not yet involved the development of lake nutrient source control technology and performance evaluation methods

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