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Construction method for evaluating river ecological conditions through aquatic organism community multi-parameter indexes

A technology of aquatic organisms and biological parameters, applied in data processing applications, instruments, character and pattern recognition, etc., can solve the problems of disconnection of aquatic ecological protection, lack of aquatic biological indicators, single water quality management, etc., to eliminate evaluation errors and improve The effect of precision

Inactive Publication Date: 2019-12-13
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] At present, my country's water environment management is still mainly based on administrative regions, mainly focusing on water bodies, focusing on water body use functions and single water quality management, without considering the integrity of water ecosystems
The goal of regional management is also mainly based on water quality monitoring and evaluation, lack of consideration of aquatic biological indicators, and water pollution control and water ecological protection are disconnected from each other

Method used

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  • Construction method for evaluating river ecological conditions through aquatic organism community multi-parameter indexes
  • Construction method for evaluating river ecological conditions through aquatic organism community multi-parameter indexes
  • Construction method for evaluating river ecological conditions through aquatic organism community multi-parameter indexes

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Experimental program
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Embodiment Construction

[0059] Embodiment Taking the river in the plain area of ​​Chaohu Lake Basin as an example, the method for constructing the multi-parameter index of the aquatic biome community to evaluate the ecological status of the river is further described.

[0060] like image 3 Shown, method of the present invention comprises the steps:

[0061] S1. Arrange sampling points, monitor river algae, macrobenthos and fish, obtain aquatic biological data, and screen candidate biological parameters based on the obtained data;

[0062] S11. Sample layout

[0063] Based on the water quality, physical habitat quality, riparian zone land use, and human disturbance intensity of the survey section, the reference points and damage points used to construct the MMI index were determined (Table 1).

[0064] Table 1 Screening principles for reference points and damaged points

[0065]

[0066]

[0067] According to the screening principles of reference points and damaged points, 28 reference point...

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Abstract

The invention relates to a construction method for evaluating river ecological conditions through aquatic organism community multi-parameter indexes. Human interference gradient identification is carried out based on physicochemical environment factor investigation and principal component analysis, parameter screening is carried out by combining a generalized linear model and AIC information, parameter weights are determined by considering the weights of parameters for human interference gradient sensitivity, and construction of multi-parameter index evaluation river ecological conditions is realized. Aiming at the current situation that the standard method for constructing the aquatic organism community multi-parameter indexes is lacked in China at present, the invention provides the standardized construction method which has universality, is easy to operate and can be popularized, results obtained by adopting the standardized construction method have comparability, and scientific data support can be provided for managers to make relevant decisions.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring and evaluation, in particular to a construction method for evaluating river ecological conditions based on a multi-parameter index of aquatic biological communities. Background technique [0002] my country's aquatic biodiversity is extremely rich, featuring a high degree of endemism and many relict species, occupying an important position in the world's biodiversity. There are many rivers and lakes in my country, and the types of habitats are complex and diverse, which provide good living conditions and reproduction space for aquatic organisms, especially the Yangtze River, Yellow River, Pearl River, Songhua River, Huaihe River, Haihe River and Liaohe River and other key river basins, which are important water sources and The treasure house of aquatic organisms plays a vital role in maintaining the service functions of aquatic ecosystems. At present, due to habitat loss and fragm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26G06K9/62
CPCG06Q10/06393G06Q50/26G06F18/2135
Inventor 蔡永久张又张志明高俊峰
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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