Mangrove forest water environmental health condition evaluation method based on biological indicators

A technology of biological indicators and health status, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of lack of unified standards for the evaluation of the overall health status of evaluation objects, achieve effective data support, avoid cumbersome procedures, The effect of simple operation process

Active Publication Date: 2017-05-31
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

However, the existing biological evaluation methods are all based on a single index, but when the evaluation results of multiple single indexes are inconsistent, there is no uniform standard for t

Method used

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  • Mangrove forest water environmental health condition evaluation method based on biological indicators
  • Mangrove forest water environmental health condition evaluation method based on biological indicators
  • Mangrove forest water environmental health condition evaluation method based on biological indicators

Examples

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specific Embodiment 1

[0038] In this example, the Shenzhen Bay mangrove forest is selected as the area to be evaluated to evaluate the health status of its water environment.

[0039] In the step of determining biological indicators, the selected biological indicators representative of the water environment health status of Shenzhen Bay mangroves are benthic animals and coastal birds. Shenzhen Bay is a resting and overwintering place for a large number of winter migratory birds. The mangrove vegetation litter provides energy sources for benthic animals on the tidal flats, and benthic animals provide rich food sources for coastal birds. The two are interconnected, and both are mangrove forests Typical species for aquatic environments. Statistical analysis showed that the populations of both benthos and coastal birds responded significantly to changes in the water environment.

[0040] Steps for selecting an ideal reference point. Hong Kong Maipo mangrove and Shenzhen Futian mangrove are geographica...

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Abstract

The invention provides a mangrove forest water environmental health condition evaluation method based on biological indicators. The method comprises the steps that the biological indicators are determined, wherein the biological indicators obviously responding to the water environment changes of a mangrove forest are selected out according to the actual condition of the mangrove forest; an ideal reference point is selected, wherein a mangrove forest area free of human activity interference or damaged to the lowest limit is selected as the ideal reference point; the indicators are calculated and evaluated, wherein the values of the biological indicators of the mangrove forest to be evaluated and the ideal reference point are measured, and the specific value I and the deviation degree b are calculated and evaluated according to the values; evaluation is carried out, wherein the water environment health condition of the mangrove forest to be evaluated is evaluated according to the evaluation specific value I and the deviation degree b. According to the mangrove forest environmental health condition evaluation method based on the biological indicators, the water environment health condition of the mangrove forest can be objectively and accurately evaluated and predicted, and the operation process is simple.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to a method for evaluating the health status of mangrove water environment based on biological indicators. Background technique [0002] Mangroves are woody plant communities that grow at the junction of land and sea. They have various ecological functions such as wind and wave protection, water purification, and maintenance of biodiversity. Currently, the mangrove ecosystem is facing unprecedented challenges. Mangroves generally face the problem of increasingly serious water pollution and a gradual decline in the quality of the water environment. The health of the water environment is crucial to the growth of mangroves and the stability of the entire mangrove ecosystem. Objective assessment and prediction of mangrove water environment health can provide basic data support and point out the protection direction for mangrove protection and management. [0003] In ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 李瑞利沈小雪丁欢李荣玉
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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