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Semi-arid region ecosystem service function evaluation method

An ecological service function and ecosystem technology, applied in the field of ecosystem service function evaluation in semi-arid areas, can solve problems such as reducing the accuracy of evaluation, and achieve the effect of stimulating awareness of protection

Pending Publication Date: 2022-04-12
陕西地建土地工程技术研究院有限责任公司
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Problems solved by technology

At present, the evaluation units of most ecosystem service evaluation studies are administrative units or a certain land use type. At the same time, most of the existing studies focus on a single element, which reduces the evaluation accuracy to a certain extent.

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  • Semi-arid region ecosystem service function evaluation method

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] see figure 1 , a method for evaluating ecosystem service functions in semi-arid areas, comprising the following steps:

[0043] Step (1): Determine 7 small watersheds of different grades in the semi-arid area.

[0044] It should be noted that a watershed is a specific geographic unit on the earth's land surface, including natural elements such as mountains, water, forests, fields, lakes, and grass. The watershed and the outlet section of the downstream channel are relatively independent and closed natural catchment areas bounded by the catchment area. ). In soil and water conservation, a small watershed generally refers to watersheds with an area of ​​less than 300km 2 watershed. According to its area, it can be divided int...

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Abstract

The invention discloses a semi-arid region ecological system service function evaluation method, and belongs to the technical field of ecological protection. The method comprises the following steps: determining a plurality of small watersheds of different grades in the semi-arid region; determining a plurality of ecological system service function items of the plurality of small watersheds; establishing evaluation indexes of a plurality of ecosystem service function items; obtaining the value quantity of the evaluation index according to the evaluation index; and calculating the ecological service function total value of the plurality of small watersheds of the semi-arid region through the value quantity of the evaluation indexes. According to the method, a plurality of small watersheds in the semi-arid region are taken as a focus point, a corresponding evaluation index system is established through an ecological system supply function, an adjustment function, a support function and a culture function, the value quantity of evaluation indexes is calculated, the total value of ecological service functions of the plurality of small watersheds in the semi-arid region at different time points is obtained, the comparability of the value is realized, and the evaluation accuracy is improved. The service function of the ecological system in the semi-arid region is displayed more accurately, and the protection consciousness of human beings to the natural ecological system is stimulated.

Description

technical field [0001] The invention relates to the technical field of ecological protection, in particular to a method for evaluating ecosystem service functions in semi-arid areas. Background technique [0002] The goal of system governance in the new era is to vigorously improve the ecosystem service function. At present, the evaluation unit of most ecosystem service evaluation studies is an administrative unit or a certain land use type. At the same time, most of the existing studies focus on a single element, which reduces the evaluation accuracy to a certain extent. Contents of the invention [0003] In order to solve the problems in the prior art, the present invention provides a method for evaluating ecosystem service functions in semi-arid areas. The methods include: [0004] Identification of several small watersheds of different classes in the semi-arid zone; [0005] Determining several ecosystem service function items of several small watersheds; [0006] ...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/26
Inventor 齐丽边振兴刘思琪王璐瑶谢潇李银彭飚李健锋
Owner 陕西地建土地工程技术研究院有限责任公司
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