Quantitative Evaluation of Benefits from Comprehensive Watershed Harness -A Case Study of Yao'an Small Watershed of Qingyuan City in Guangdong Province

ZHENG Guoquan; YANG Xianjie; WEN Meili; GONG Qinghua; YANG Long; TIAN Tian

doi:10.13961/j.cnki.stbctb.2016.04.042

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Quantitative Evaluation of Benefits from Comprehensive Watershed Harness -A Case Study of Yao'an Small Watershed of Qingyuan City in Guangdong Province

- Quantitative Evaluation of Benefits from Comprehensive Watershed Harness -A Case Study of Yao'an Small Watershed of Qingyuan City in Guangdong Province
- Bulletin of Soiland Water Conservation Vol. 36, Issue 4, Pages: 237-243(2016)
- 作者机构：
  
  1. 广东省水利电力勘测设计研究院,广东,广州,510635
  2. 广东省地理空间信息技术与应用公共实验室广州地理研究所,广东,广州,510070
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.04.042
  CLC：
- Published：2016
- 稿件说明：
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ZHENG Guoquan, YANG Xianjie, WEN Meili, et al. Quantitative Evaluation of Benefits from Comprehensive Watershed Harness -A Case Study of Yao'an Small Watershed of Qingyuan City in Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 237-243.
DOI：

ZHENG Guoquan, YANG Xianjie, WEN Meili, et al. Quantitative Evaluation of Benefits from Comprehensive Watershed Harness -A Case Study of Yao'an Small Watershed of Qingyuan City in Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 237-243. DOI： 10.13961/j.cnki.stbctb.2016.04.042.

摘要

[目的] 以广东省清远市瑶安小流域为例，对广东省小流域综合治理的效益进行定量评价，为该省小流域综合治理和效益评价工作提供借鉴和依据。[方法] 根据广东省小流域的灾害特点和治理目标及瑶安小流域的实际情况，利用层次分析法确立防洪减灾效益、水保生态效益、经济效益和社会效益等4个效益类型，选择21个具有代表性的评价指标。数据标准化后利用模糊数学综合评判法构建小流域综合治理效益评价模型。[结果]（1）构建的评价指标体系和评价方法能较为全面地反映小流域治理的综合效益，适合广东省使用。（2）2007-2013年瑶安小流域的综合效益和4个单项效益均有不同程度的提高，其中防灾效益和经济效益显著提高。[结论] 提出的效益评价指标体系和方法在广东省是实用可行的。综合治理后瑶安小流域防灾减灾能力得到显著提高，水土流失状况得到改善。

Abstract

[Objective] Through a case study in quantitative evaluation of benefits from comprehensive watershed harness of Yao'an small watershed of Qingyuan City in Guangdong Province

we expected that some references for the watershed harness and benefit evaluation. [Methods] According to the disaster characteristics of small watershed in the province

the harness destination and actual situation of Yao'an small watershed

4 benefit types(flood protection and disaster reduction

soil and water conservation and ecological

economic and social benefit ) and 21 indices were chosen to evaluate the benefits from comprehensive harness of watershed. Methods of data standardization

fuzzy comprehensive evaluation model and analytic hierarchy process were used. [Results] (1) The indices system and evaluation model presented well the comprehensive benefit of soil and water conservation of small watershed

and were suitable in the region of Guangdong Province. (2) The comprehensive benefit and the above four benefit items were all improved with different percentages from 2007 to 2013 in Yao'an small watershed

among them

the disaster reduction benefits from flood protection and economic benefit were remarkable. [Conclusion] The indices and method used in quantitative benefit evaluation for comprehensive control were practical and suitable in the watershed of Guangdong Province. After comprehensive harness been conducted

the withstanding ability to disaster was signally enhanced and the situation of soil loss was moderated.

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references

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