不同环节灌溉用水效率及节水潜力分析

崔远来; 谭芳; 郑传举

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不同环节灌溉用水效率及节水潜力分析

崔远来, 谭芳, 郑传举

文章导航 > 水科学进展 > 2010 > 21(6): 788-794

崔远来, 谭芳, 郑传举. 不同环节灌溉用水效率及节水潜力分析[J]. 水科学进展, 2010, 21(6): 788-794.

引用本文:

崔远来, 谭芳, 郑传举. 不同环节灌溉用水效率及节水潜力分析[J]. 水科学进展, 2010, 21(6): 788-794.

CUI Yuan-lai, TAN Fang, Zheng Chuan-ju. Analysis of irrigation efficiency and water saving potential at different scales[J]. Advances in Water Science, 2010, 21(6): 788-794.

Citation:

CUI Yuan-lai, TAN Fang, Zheng Chuan-ju. Analysis of irrigation efficiency and water saving potential at different scales[J]. Advances in Water Science, 2010, 21(6): 788-794.

不同环节灌溉用水效率及节水潜力分析

1.
武汉大学水资源与水电工程科学国家重点实验室, 湖北, 武汉, 430072;
2.
湖北漳河工程管理局, 湖北, 荆门, 448156

基金项目: 国家自然科学基金资助项目(50879060);高等学校博士学科点专项科研基金资助项目(20090141110024)

详细信息

作者简介:
崔远来(1966- ),男,江西武宁人,教授,博士,主要从事节水灌溉理论与技术方面研究.E-mail:Cuiyuanlai@263.net

中图分类号: S274.3

Analysis of irrigation efficiency and water saving potential at different scales

1.
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;
2.
Hubei Zhanghe Hydraulic Project Administration Bureau, Jingmen 448156, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.50879060) and the Ph.D.programs Foundation of Ministry of Education of China(No.20090141110024).

摘要: 以漳河灌区为例,在对灌区渠系进行等效概化的基础上,采用经验公式法进行不同工况下不同环节灌溉用水效率的分析计算.结果表明总干及干渠环节和分、斗、农渠环节的渠道水利用系数较大,而支干、分干和支渠环节的渠道水利用系数偏小,渠道断面大小、长度及防渗率是导致渠道水利用系数差异的主要原因.计算分析了不同条件下的灌溉用水效率阈值,达到相应阈值时的投资,以及净节水量和节水率,分析了投资与灌溉用水效率阈值及节水率的关系.表明随投资的增加灌溉用水效率及节水率均提高,但其过程符合报酬递减规律,且节水率的报酬递减速度更快.
- 灌溉用水效率 /
- 节水潜力 /
- 环节 /
- 阈值 /
- 漳河灌区
Abstract: Based on a predigested but equivalent canal system for the Zhanghe Irrigation Distric,tusing an empirical formula,the irrigation efficiency(IE) in the system is calcu latedatd ifferent scales under different conditions.The result shows IEs are found to be higher at the primary and trunk canals than that of at the submain and branch canals.These IE differences are mainly due to the differences in the canal cross section and length,as well as the lining ratio.We calculate the maxmium irrigation efficiency(MIE) and its corresponding cost,as well as the water saving potential and ratio underd ifferent conditions.An input output analysis of the relationships between the cost and MIE aswell as the water sav ing ratio is conducted.It shows that bothM IE and the water saving ratio are proportional to the cost,but comply the rule of decreasing rewards during the course of the input output process.The deceleration rate of the water saving ratio would be greater than that of MIE.
- irrigation efficiency /
- water saving potential /
- scale /
- maxmiun value /
- Zhanghe Irrigation District

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不同环节灌溉用水效率及节水潜力分析

1. 武汉大学水资源与水电工程科学国家重点实验室, 湖北, 武汉, 430072;

2. 湖北漳河工程管理局, 湖北, 荆门, 448156

基金项目: 国家自然科学基金资助项目(50879060);高等学校博士学科点专项科研基金资助项目(20090141110024)

作者简介:
崔远来(1966- ),男,江西武宁人,教授,博士,主要从事节水灌溉理论与技术方面研究.E-mail:Cuiyuanlai@263.net

收稿日期: 2009-12-16
刊出日期: 2010-11-25

中图分类号: S274.3

关键词:

灌溉用水效率 /

节水潜力 /

环节 /

阈值 /

漳河灌区

摘要: 以漳河灌区为例,在对灌区渠系进行等效概化的基础上,采用经验公式法进行不同工况下不同环节灌溉用水效率的分析计算.结果表明总干及干渠环节和分、斗、农渠环节的渠道水利用系数较大,而支干、分干和支渠环节的渠道水利用系数偏小,渠道断面大小、长度及防渗率是导致渠道水利用系数差异的主要原因.计算分析了不同条件下的灌溉用水效率阈值,达到相应阈值时的投资,以及净节水量和节水率,分析了投资与灌溉用水效率阈值及节水率的关系.表明随投资的增加灌溉用水效率及节水率均提高,但其过程符合报酬递减规律,且节水率的报酬递减速度更快.

English Abstract

Analysis of irrigation efficiency and water saving potential at different scales

1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;

2. Hubei Zhanghe Hydraulic Project Administration Bureau, Jingmen 448156, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.50879060) and the Ph.D.programs Foundation of Ministry of Education of China(No.20090141110024).

Received Date: 2009-12-16
Publish Date: 2010-11-25

Keywords:

Abstract: Based on a predigested but equivalent canal system for the Zhanghe Irrigation Distric,tusing an empirical formula,the irrigation efficiency(IE) in the system is calcu latedatd ifferent scales under different conditions.The result shows IEs are found to be higher at the primary and trunk canals than that of at the submain and branch canals.These IE differences are mainly due to the differences in the canal cross section and length,as well as the lining ratio.We calculate the maxmium irrigation efficiency(MIE) and its corresponding cost,as well as the water saving potential and ratio underd ifferent conditions.An input output analysis of the relationships between the cost and MIE aswell as the water sav ing ratio is conducted.It shows that bothM IE and the water saving ratio are proportional to the cost,but comply the rule of decreasing rewards during the course of the input output process.The deceleration rate of the water saving ratio would be greater than that of MIE.

崔远来, 谭芳, 郑传举. 不同环节灌溉用水效率及节水潜力分析[J]. 水科学进展, 2010, 21(6): 788-794.

引用本文:

崔远来, 谭芳, 郑传举. 不同环节灌溉用水效率及节水潜力分析[J]. 水科学进展, 2010, 21(6): 788-794.

CUI Yuan-lai, TAN Fang, Zheng Chuan-ju. Analysis of irrigation efficiency and water saving potential at different scales[J]. Advances in Water Science, 2010, 21(6): 788-794.

Citation:

CUI Yuan-lai, TAN Fang, Zheng Chuan-ju. Analysis of irrigation efficiency and water saving potential at different scales[J]. Advances in Water Science, 2010, 21(6): 788-794.