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Method for evaluating health condition of mangrove forest wetland

A technology for health status and mangroves, applied in complex mathematical operations, instruments, climate change adaptation, etc., can solve the problems of difficult data acquisition and complex analysis, and achieve the effect of easy data acquisition, simple analysis, and wide application range

Pending Publication Date: 2021-03-30
深圳中绿环境集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing mangrove health assessment methods, the ecosystem assessment methods under environment, state and pressure are mostly used. These methods are difficult to obtain data and complex to analyze.

Method used

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  • Method for evaluating health condition of mangrove forest wetland
  • Method for evaluating health condition of mangrove forest wetland
  • Method for evaluating health condition of mangrove forest wetland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0077] Select a mangrove plot in Xixiang, Bao’an, set up three 10m*10m quadrats, investigate the indicators of mangrove plant communities on the spot, collect water and sediment samples and bring them back to the laboratory for testing. The measured values ​​are shown in Table 3:

[0078] Table 3 Determination data table

[0079]

[0080] Above-mentioned plants are scored, as shown in table 4:

[0081] Table 4 Scoring Form

[0082]

[0083]

[0084] Take the mean value 44 of the three sample plots, and calculate the mangrove wetland health index of the sample plot according to the weight index:

[0085] FEHI of sample plot 1=0.016*4+0.048*4+0.079*3+0.014*5+0.014*3+0.043*4+0.072*1+0.045*4+0.089*5+0.134*4+0.223*4+ 0.223*3=3.57.

[0086] Similarly, the FEHI value of sample quadrat 2 is 3.57, and the FEHI value of sample quadrat 2 is 3.57, and the mean value is taken as the result.

[0087] Therefore, the FEHI value of this sample plot is 3.57, which is between 2.75 a...

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Abstract

The invention provides a method for evaluating the health condition of a mangrove forest wetland. The method comprises the following steps of investigating the current situation of the mangrove forestwetland, selecting unrepaired areas with the same environmental factors as reference points, determining a mangrove plant sample plot investigation method, and determining an influence index value ofmangrove forest artificial repair on the environment; determining a water environment quality index detection method, a heavy metal index and a nutrient substance pollution index; determining an evaluation method of sediment environment quality indexes; determining mangrove forest wetland health evaluation index weights; according to the weight of each index, respectively determining the comprehensive weight of each index in the water environment quality, each index in the sediment environment quality and each index in the mangrove plant community, calculating the health index of the mangroveforest wetland, dividing evaluation grades, and carrying out evaluation. According to the method, the health of the mangrove forest wetland is evaluated by adopting three levels of the water environment, sediments and the plant community, and the health condition of the mangrove forest wetland can be quickly evaluated.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, in particular to a method for evaluating the health status of mangrove wetlands. Background technique [0002] Mangroves are important targets for biodiversity conservation and coastal wetland ecological protection. As a key area of ​​coastal ecology, the mangrove wetland ecosystem has powerful ecological service functions such as maintaining biodiversity and material production, preventing wind and waves, revetment, and purifying pollutants. With the rapid development of coastal cities, the mangrove wetland system has been severely damaged, and the mangrove area has decreased by about 40%. Pollution and human activities have led to a decline in the biodiversity of mangrove wetlands. Some ecological functions are in a sub-healthy state or even lost. Coastal erosion The intensification of environmental pollution and the depletion of coastal fishery resources have brought enormous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F17/16G06Q50/02
CPCG06Q10/06393G06Q10/06395G06F17/16G06Q50/02Y02A40/22
Inventor 王辉黄文良宋雪刘明辉陈瑞萍黄锦慧
Owner 深圳中绿环境集团有限公司
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