Entrophication control technique from the perspective of complex system of social economy-ecological environment

Abstract

The present invention discloses an entrophication control technique from the perspective of a complex system of social economy-ecological environment. Firstly, a vegetation cover index is used as an indicator representing the vegetation state, a relationship between the vegetation cover and the eutrophication process of water body is established, and then on the basis the systematic dynamics process which discloses that water for social and economical uses affects the eutrophication of water body, the systematic dynamic process is combined with the impact caused by the vegetation cover to the eutrophication. Finally, a systematic dynamics model capable of reflecting the feedback mechanism between the vegetation cover and the eutrophication in a complex system of social economy-ecological environment, to regulate the eutrophication. This technique not only reflects whether the quantity of N and P generated by the socially and economically used water is suitable from the perspective of the complex system of social economy-ecological environment, but also embodies the dynamic feedback process between the vegetation coverage and the eutrophication of the water body. in this way, critical regulation factors are pointed out, the corresponding critical dynamical process is simulated, a dedicated regulation scheme for regulating the eutrophication with respect to the structure of the socially and economically used water is provided, which gives effective guidance to regulation of the source of the eutrophication of water body.

Description

[technical field] [0001] The invention belongs to the field of water pollution control, and in particular relates to a eutrophication control technology from the perspective of a social economy-ecological environment composite system. [Background technique] [0002] Effective control of water eutrophication is a basic task of water pollution control and an important requirement of water environment protection. As an important carrier of nutrient elements and water transport, vegetation plays an important role in the regulation of nutrient levels in lakes and other water bodies, and is often used as an important measure for ecological restoration of water environments. However, in the past lake eutrophication control technologies, there are two main deficiencies: 1) Water eutrophication is mostly regulated from the perspective of lake terminal treatment, while terminal treatment technologies for eutrophic water bodies, due to the feedback relationship involved Complex, the f...

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Problems solved by technology

[0003] The feedback relationship and process between the growth state of vegetation in the existing ecosystem and the eutrophication state of the water body are still relatively vague, and water quality cannot be regulated from the source of eutrophication, which is socio-economic water use, resulting in eutrophication. In order to solve the problem of poor eutrophication control effect, the present invention provides a eutrophication control technology based on the response of vegetation coverage to water quality from the perspective of socio-economic-ecological environment composite system. Combined with the response relationship of water eutrophication caused by water use, it can not only indicate whether the amount of N and P produced by social and economic water use is appropriate through the appropriate range of the vegetation coverage index, but also reveal the dynamic relationship between the degree of vegetation coverage and the state of water eutrophication. Feedback process, pointing out the key regulation factors and simulating the corresponding key dynamic process, thus putting forward suggestions for the adjustment of social and economic water structure in a targeted manner, and providing effective guidance for the efficient regulation of water eutrophication

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