Small watershed land utilization structure optimization method and system

An optimization method and technology for small watersheds, applied in data processing applications, general water supply conservation, instruments, etc., can solve problems such as low cost-effectiveness and inability to take into account, achieve high economic benefits, reduce water quality degradation, and optimize land use planning.

Inactive Publication Date: 2020-12-29
NANJING FOREST POLICE COLLEGE
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Problems solved by technology

However, land use structure change and BMPs implementation schemes determined by plot-scale analysis are low in cost-effectiveness, unable to take into account the trade-offs of multiple objectives of small watershed eco-social systems, and may remove excessive pollutants at the watershed level

Method used

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  • Small watershed land utilization structure optimization method and system
  • Small watershed land utilization structure optimization method and system
  • Small watershed land utilization structure optimization method and system

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Embodiment Construction

[0057] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0058] The invention provides a method for optimizing land use for soil and water conservation in small watersheds, comprising the following steps:

[0059] Step 1, establish a small watershed land optimization multi-objective function

[0060] Step 1.1, establish the ecological environment impact evaluation function

[0061] Scores for individual environmental elements are calculated using weighted averages using the following formula:

[0062]

[0063] Among them: i: the number of the elements involved in the ecological environment impact assessment;

[0064] p i : the score of element i of the ecological environment impact assessment,

[0065] k: select...

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Abstract

The invention discloses a small watershed land utilization structure optimization method and system. The method comprises the following steps: establishing an ecological environment influence evaluation function, establishing an economic benefit evaluation function, and establishing a small watershed land optimization multi-objective function based on the two evaluation functions; and solving a small watershed land optimization multi-objective function by adopting a multi-overturn method. The multi-objective function is combined with a multi-overturn mode to optimize land utilization planning,and a new land utilization mode is introduced, so that water quality degradation is reduced, higher economic benefits are brought to a drainage basin, and optimal balance between environmental protection and economic benefits is achieved.

Description

technical field [0001] The invention belongs to the technical field of land resource data processing, and relates to a method for optimizing the land use structure of a small watershed and a system for realizing it. Background technique [0002] Reducing the concentration of non-point source pollutants and sediment production is an important part of the national soil and water conservation ecological civilization and clean small watershed construction project. Based on this, Gaochun District, where the Peiqiao River small watershed is located, is undergoing some optimization of land use structure and implementation of BMPs (Best Management Practices). Among them, the non-point source pollution prevention and control project is one of the key points of the work. The project uses the small watershed as a platform to actively integrate the construction of the Taihu Lake Basin governance project, scientifically select and apply chemical fertilizers and pesticides, reduce the use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/26
CPCG06Q10/04G06Q10/0639G06Q50/26Y02A20/152
Inventor 张水锋
Owner NANJING FOREST POLICE COLLEGE
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