Remote sensing estimation method of biological bearing capacity

Abstract

The invention relates to a remote sensing estimation method of a biological bearing capacity. The remote sensing estimation method comprises the following steps: constructing a biological bearing capacity index evaluation system; establishing corresponding index layers from three aspects including jamming intensity, a biological system state and human responding respectively; collecting basic information; constructing a vegetation coverage database; taking administrative division and a water collection unit as evaluation units respectively based on basic data, a soil utilization classification chart and vegetation coverage; and carrying out biological bearing capacity single-index estimation. Each single index is subjected to weight factor determination by using an analytic hierarchy process, and biological bearing capacity comprehensive evaluation is carried out. A quantitative remote sensing coupling concept is utilized and space isomerism is considered; a region difference of a region to be estimated is represented; the biological bearing capacity index evaluation system is constructed so that digitalization of a compound biological system is realized; the biological bearing capacity evaluation of the region to be estimated can be rapidly and comprehensively realized.

Description

technical field [0001] The invention relates to the technical field of ecological protection, and relates to an estimation method of ecological environment carrying capacity, in particular to a remote sensing estimation method of ecological carrying capacity. Background technique [0002] Since the 20th century, with the advancement of science and technology and the great improvement of social productivity, problems such as population growth, excessive consumption of resources, environmental pollution, and ecological damage have become increasingly prominent, resulting in the decline of ecological carrying capacity in many areas and threatening the future survival of human beings. [0003] Maintaining the integrity of the ecosystem and controlling human activities within the carrying capacity of the ecosystem are the most basic and primary conditions for realizing the sustainable development of the ecosystem and the region. Most of the relevant research on ecological carryin...

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Problems solved by technology

First of all, my country is a large agricultural country with a large population and complex underlying surface conditions. It is difficult to use the single factor carrying capacity to study the requirements for the development and development of ecosystem resources. Second, my country has a vast territory and large regional differences. When calculating the ecological carrying capacity, it is very difficult to obtain basic ground data; thirdly, the pollution discharge intensity is an important indicator for evaluating the state of the ecosystem, but the existing model methods are less considered, and do not calculate point source pollution and non-point source pollution Impact on Ecological Carrying Capacity

[0005] At present, there is no recommended technical method for the evaluation of ecological carrying capacity in my country. Due to the large regional differences, it is difficult to obtain some basic data, and the existing methods are single-minded, and cannot make a more comprehensive evaluation of ecological carrying capacity.

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