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Small watershed water and soil conservation vegetation buffer zone optimization method and system

A vegetation buffer zone and optimization method technology, applied in the field of small watershed soil and water conservation vegetation buffer zone optimization method and its realization system, can solve the problems of cost-effectiveness, implementation and maintenance costs, failure to consider environmental quality protection, etc. To achieve the effect of maximizing the income of agricultural production

Pending Publication Date: 2020-11-27
NANJING FORESTRY UNIV
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Problems solved by technology

On the other hand, VBS occupies a portion of agricultural land that could be used for crop production and involves implementation and maintenance costs
Currently, the VBS is designed based on the results of field studies (location, plant type and width) and does not involve a science-based approach to ensuring its efficiency in a specific region, climate, geology and economic conditions, failing to take into account the environment Cost-effectiveness with quality protection

Method used

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  • Small watershed water and soil conservation vegetation buffer zone optimization method and system
  • Small watershed water and soil conservation vegetation buffer zone optimization method and system
  • Small watershed water and soil conservation vegetation buffer zone optimization method and system

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Embodiment Construction

[0056] 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.

[0057] The invention provides a method for optimizing a vegetation buffer zone for soil and water conservation in a small watershed, comprising the following steps:

[0058] Step 1, establish the soil and water conservation vegetation buffer zone to optimize the multi-objective function

[0059] Step 1.1, establish the sub-objective function of ecological environment impact assessment

[0060] Use formula (1) to calculate the ecological environment impact assessment elements, which include at least sediment output and nitrogen and phosphorus pollutant loads:

[0061]

[0062] Among them: i: the number of the elements involved in the ecological environment imp...

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Abstract

The invention discloses a small watershed water and soil conservation vegetation buffer zone optimization method and system. A multi-objective decision framework of VBS optimization design under a watershed scale is established based on an ecological environment influence evaluation sub-objective function and an economic benefit evaluation sub-objective function. According to the framework, a multi-objective function is optimized, and the most appropriate scheme is selected from a large number of possible solutions to design the basin VBS. According to the system, factors such as climatic characteristics, terrains and soil of the small watershed are considered, VBS optimization design is carried out on the small watershed of the Peiqiao river, sediment transport, nitrogen and phosphorus nutrient loads and the implementation / maintenance cost of VBS are minimized, agricultural production benefits are maximized, and watershed environment quality protection with cost benefits can be provided.

Description

technical field [0001] The invention belongs to the technical field of land resources data processing, and relates to a small watershed soil and water conservation vegetation buffer zone optimization method and a system for realizing the same. Background technique [0002] Agricultural activities are the main cause of soil erosion and non-point source pollution, and have a great impact on the environmental quality of watershed ecosystems. The impact of agricultural activities on water quality can be minimized by implementing proper land management planning. Among them, the design of Vegetative Buffer Strips (VBS) is one of the commonly used land management planning methods, which can significantly improve water quality when properly designed and arranged. On the other hand, VBS occupies a portion of agricultural land that could be used for crop production and involves implementation and maintenance costs. Currently, the VBS is designed based on the results of field studies...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06Q10/06G06Q50/02G06F111/06
CPCG06Q10/06375G06Q10/06393G06Q50/02G06F30/20G06F2111/06
Inventor 张水锋张金池
Owner NANJING FORESTRY UNIV
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