Construction and Benefit Evaluation of Soil Erosion Control in Small Watershed in Low Mountain and Hill Region of Northeast China -A Case Study in Hesheng Small Watershed of Ning'an City in Heilongjiang Province
|更新时间:2025-03-12
|
Construction and Benefit Evaluation of Soil Erosion Control in Small Watershed in Low Mountain and Hill Region of Northeast China -A Case Study in Hesheng Small Watershed of Ning'an City in Heilongjiang Province
Bulletin of Soiland Water ConservationVol. 36, Issue 1, Pages: 253-258(2016)
LI Lixin, CHEN Yingzhi, DONG Jinghai. Construction and Benefit Evaluation of Soil Erosion Control in Small Watershed in Low Mountain and Hill Region of Northeast China -A Case Study in Hesheng Small Watershed of Ning'an City in Heilongjiang Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 253-258.
DOI:
LI Lixin, CHEN Yingzhi, DONG Jinghai. Construction and Benefit Evaluation of Soil Erosion Control in Small Watershed in Low Mountain and Hill Region of Northeast China -A Case Study in Hesheng Small Watershed of Ning'an City in Heilongjiang Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 253-258. DOI: 10.13961/j.cnki.stbctb.2016.01.045.
Construction and Benefit Evaluation of Soil Erosion Control in Small Watershed in Low Mountain and Hill Region of Northeast China -A Case Study in Hesheng Small Watershed of Ning'an City in Heilongjiang Province
[Objective] This article analyzed the soil and water conservation measures of Hesheng watershed of Ning'an City in Heilongjiang Province in order to provide technical support for soil and water loss control in hilly area of northeast China. [Methods] Based on the field survey and investigation
land use map and google images
we analyzed the spatial distribution of land use in Hesheng watershed by using ArcGIS 9.3 spatial analysis function. The benefits of soil and water erosion control were evaluated. [Results] The soil erosion control measures in the watershed mainly included terrace plants
soil conservation
erosion ditch protective forest
check dam
ecological restoration
five-hole culvert waterway bridge and culvert. [Conclusion] The economic internal rate of return rate of soil erosion comprehensive treatment project in Hesheng watershed was greater than the social discount rate. Economic net present value was greater than 0
and the benefit-cost ratio was greater than 1. The project meets the requirements of the national standards
and can provide references for soil and water loss control in other regions.