Water and soil conservation measure ecological service function evaluation method

A technology for soil and water conservation measures and ecological service functions, which is applied in the field of ecological service function evaluation of soil and water conservation measures, and can solve problems such as lack of ecological service function evaluation and low ecological function.

Pending Publication Date: 2020-06-09
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

[0005] Aiming at the problems of low ecological function and lack of systematic evaluation of ecological service functions in the southern red soil hilly area, an evaluation system for the ecological service function of soil and water conservation measures suitable for the southern red soil hilly area was established. The characteristics of the ecological service functions of the soil and water conservation measures of the slope orchards in the district vary with time, and exploring the timeliness of the water and soil conservation measures can provide scientific support for the spatial layout of the water and soil conservation measures in the watershed. The present invention includes the following contents:

Method used

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  • Water and soil conservation measure ecological service function evaluation method
  • Water and soil conservation measure ecological service function evaluation method
  • Water and soil conservation measure ecological service function evaluation method

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Embodiment

[0319] This embodiment takes the orchard of Xiaoyang Village, Ningdu County, Ganzhou City, Jiangxi Province as the evaluation object. This area is a part of the southern red soil hilly area, and it is also a demonstration base for water and soil conservation in Ningdu County. The total area of ​​this small watershed is about 30 square kilometers. The form of land use has established a characteristic agricultural and forestry development soil erosion control technology system of "top forest, cashew nuts, grain farmers, and bottom fishing", and built reservoirs, sedimentation ponds, road network drainage ditches, and horizontal bamboo joints in combination with different positions on the slope. Water system spatial arrangement technology including ditches, etc., adopts water and soil conservation measures such as planting grass in front of ridges and back ditches, and step walls for governance, which has certain ecological service functions and values. The ecological service func...

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Abstract

The invention provides a water and soil conservation ecological service function evaluation method. The method comprises the steps of: obtaining basic ecological indexes related to the water and soilconservation measure ecological service function of a drainage basin, and assigning a weight to each basic ecological index; and scoring the value of each basic ecological index, wherein the basic ecological indexes comprise indexes related to sediment loss, indexes related to runoff regulation and control in rainy seasons and indexes related to runoff regulation and control in dry seasons, and optionally comprise indexes related to forest product provision. The method is particularly suitable for evaluating the water and soil conservation measure ecological service function of the southern red soil hilly area small watershed, and therefore the current situation of the water and soil conservation measure ecological service function of the small watershed can be evaluated according to actual basic ecological indexes.

Description

technical field [0001] The invention relates to a method for evaluating ecological service functions of soil and water conservation measures, in particular to a method for evaluating ecological service functions of soil and water conservation measures suitable for southern red soil hilly areas. Background technique [0002] The red soil hilly area is located in the tropics and subtropics, rich in water and heat resources, high temperature, rainy, dry and wet seasons are obvious, the precipitation is large, but the temporal and spatial distribution is uneven, most of the rainfall is concentrated in March to June, and there are many heavy rains; the terrain is high in the west and east The ratio of mountains, hills and plains is roughly 7:2:1. This natural condition leads to frequent erosion under rainfall conditions and rill erosion. In addition, the area is densely populated, and unreasonable human activities have led to large-scale degradation of red soil, resulting in seri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26
Inventor 孙莉英吴辉栗清亚陈腊娇
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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