Method for determining basin land development and utilization bearing capacity

Abstract

The invention discloses a method for determining basin land development and utilization bearing capacity. The method comprises the following steps: investigating and calculating the water environment capacity of a river; determining a drainage basin range of the river; on the basis of the determined drainage basin range, investigating the current land utilization situation and land utilization planning in the drainage basin range, and determining the water pollutant discharge amount of the unit land area of each land utilization type at the current situation, namely the river-entering pollution discharge coefficient; and judging whether the local land utilization plan exceeds the development and utilization bearing capacity or not based on the obtained water environment capacity, the obtained land utilization plan and the obtained river-entering pollution discharge coefficient. According to the method, whether the basin land development mode and the development scale exceed the river water environment bearing capacity or not can be rapidly judged, decision support can be provided for basin land utilization optimization and adjustment, blindness of experience decision is avoided, and therefore the purpose of protecting river water is achieved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for determining the bearing capacity of watershed land development and utilization. Background technique [0002] In order to strengthen the protection and restoration of the ecological environment in the Yangtze River Basin, promote the rational and efficient use of resources, and ensure ecological security, the "Eco-environmental Protection Plan for the Yangtze River Economic Belt" clearly requires that "all economic activities along the Yangtze River must be based on the Negative list of access, clarifying the list-style management requirements for space access and environmental access. Except for projects under construction, it is strictly forbidden to build new heavy chemical parks within 1 km of the coastline of main streams and major tributaries, and strictly control the mid-upstream coastal areas New petrochemical and coal chemical pr...

AI Technical Summary

Problems solved by technology

However, there is currently no reasonable way to judge whether the carrying capacity of land development and utilization within a certain watershed exceeds the upper limit based on the premise of the river's environmental capacity, and then provide decision-making support for the optimization and adjustment of land development methods and development scales in the entire watershed.

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