Benefit-cost Analysis on Green Water Management Measures in Xixi Watershed of Jinjiang River Based on SWAT Model

Rong Kun; Li Xueping; Yang Qian; Luo Jie; Zhang Chenxi

doi:10.13961/j.cnki.stbctb.2019.01.022

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Benefit-cost Analysis on Green Water Management Measures in Xixi Watershed of Jinjiang River Based on SWAT Model

- Benefit-cost Analysis on Green Water Management Measures in Xixi Watershed of Jinjiang River Based on SWAT Model
- Bulletin of Soiland Water Conservation Vol. 39, Issue 1, Pages: 137-141(2019)
- 作者机构：
  
  滨州学院生物与环境工程学院,山东,滨州,256600
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2019.01.022
  CLC：
- Published：2019
- 稿件说明：
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Rong Kun, Li Xueping, Yang Qian, et al. Benefit-cost Analysis on Green Water Management Measures in Xixi Watershed of Jinjiang River Based on SWAT Model[J]. Bulletin of Soiland Water Conservation, 2019, 39(1): 137-141.
DOI：

Rong Kun, Li Xueping, Yang Qian, et al. Benefit-cost Analysis on Green Water Management Measures in Xixi Watershed of Jinjiang River Based on SWAT Model[J]. Bulletin of Soiland Water Conservation, 2019, 39(1): 137-141. DOI： 10.13961/j.cnki.stbctb.2019.01.022.

摘要

[目的

]

计算晋江西溪流域4种绿水管理措施的效益和成本，为西溪流域生态治理提供新的参考模式，为完善水资源管理机制提供借鉴。[方法

]

以晋江西溪流域为研究区，运用SWAT模型对石陇、梯田、等高耕作、地表覆盖4种绿水管理措施进行了情景模拟，计算了4种措施在增加绿水、水土保持、水质保护、农业增收等方面的效益，并对每种措施进行了效益成本分析。[结果

]

①石陇、梯田、等高耕作3种绿水管理措施的效益成本比分别为19.52，13.03，6.98，都远大于1，非常适合在西溪流域推广应用，3种措施的平均效益成本比为10.18。流域实施3种措施的年均成本为3.97×10

元，年均效益为4.05×10

元。②地表覆盖的效益成本比仅为0.63，目前不适合在研究区推广应用。[结论

]

石陇、梯田、等高耕作的环境与经济效益较好，有较好的应用前景；今后应进一步探索降低地表覆盖成本的技术，同时辅以适当的政府补贴，以利于该绿水管理措施在研究区的推广。

Abstract

[Objective] To calculate the benefits and cost of four green water management measures

in order to provide a new reference pattern for ecological restoration of Xixi watershed

and provide support for improving water resources management mechanisms. [Methods] Taking Xixi watershed of the Jijiang basin as the study area

four green water management measures including stone lines

bench terraces

contour tillage and mulching were simulated by soil and water assessment tool (SWAT) model. The benefits of four measures in increasing green water

soil conservation

water quality protection and agricultural income were calculated

and the benefit and cost of each measure was analyzed. [Results] ① The benefit-cost ratio of stone lines

bench terraces and contour tillage was 19.52

13.03 and 6.98

respectively

which were far greater than 1

so those three green water management measures were suitable for popularization and application in Xixi watershed. The average benefit-cost ratio of the three measures was 10.18

and the average cost of the three measures in Xixi watershed was 3.97 million RMB per year

and the average benefit of that was 40.47 million RMB per year. ② The benefit-cost ratio of mulching was only 0.63

so it was not suitable for application in the study area at present. [Conclusion] The environmental and economic benefits of stone lines

bench terraces

contour tillage are good and have a good application prospect. Further exploration should be made to reduce the cost of mulching

and the financial subsidies are also need to be provided

so as to promote the application of the green water management measures in the study area.

关键词

Keywords

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