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Lake basin hydro-ecological function three-level zoning method

A three-level zoning and water ecology technology, applied in the field of environmental protection and comprehensive utilization of resources, can solve problems such as not meeting the needs of science and technology, and achieve the effect of easy access

Inactive Publication Date: 2016-01-06
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, this staged achievement still cannot meet the scientific and technological requirements for the establishment of a quality objective management system for water ecological health in the basin.

Method used

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  • Lake basin hydro-ecological function three-level zoning method
  • Lake basin hydro-ecological function three-level zoning method
  • Lake basin hydro-ecological function three-level zoning method

Examples

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described in detail below through specific examples, but it is necessary to point out that the following examples are only used to describe the content of the invention and do not constitute a limitation on the protection scope of the present invention.

[0024] Taking the Chaohu Lake Basin as an example, combined with the attached figure 1 , attached figure 2 and attached image 3 The present invention is further described in detail. The tertiary zoning is carried out on the basis of the first and second zoning of water ecological functions. For the method of the first and second zoning, please refer to the applicant's invention patent CN2015102195333.

[0025] The three-level zoning method for water ecological function according to the present invention is mainly carried out according to the following steps:

[0026] (1) Determine the purpose and principles of the three-level zoning of water ecologic...

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Abstract

A lake basin hydro-ecological function three-level zoning method comprises: selecting a set of lake basin hydro-ecological function three-level zoning indexes, dividing a target basin DEM as a base map into zoning function units through hydrological analysis, spatially discretizing the zoning indexes on the zoning function units, and combining the similar hydro-ecological zoning function units with a second-order spatial clustering analysis method in combination with a lake basin hydro-ecological function two-level zoning boundary to preliminarily form a hydro-ecological function zoning draft; performing zoning check by utilizing hydro-ecological survey data, and adjusting the zoning indexes according to a zoning check result to correct the zoning draft; and finally determining a hydro-ecological function zoning boundary and making a lake basin hydro-ecological function three-level zoning map.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and comprehensive utilization of resources, relates to a water ecological function zoning technology of a river basin, and in particular relates to a three-level zoning method for the water ecological function of a lake-type watershed. Background technique [0002] The water ecological function area refers to the water body with relatively consistent (potential) water ecosystem composition, structure, pattern, process and function and the land water aggregate with "water and land consistency". Repair provides the basis. The water ecological function area is proposed to meet the needs of the management of the water ecosystem of the river basin, with the goal of restoring the continuity and integrity of the watershed ecosystem, and taking the water ecosystems at different scales and their influencing factors as the research objects. The principle and method of the pattern and scale...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/00
Inventor 张志明高俊峰高永年
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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