灌区渠系特征与灌溉水利用系数的Horton分维

doi:10.11821/dlyj201404017

地理研究 ›› 2014, Vol. 33 ›› Issue (4): 789-800.doi: 10.11821/dlyj201404017

• 论文 • 上一篇

灌区渠系特征与灌溉水利用系数的Horton分维

王小军¹, 张强², 易小兵¹, 肖名忠²

1. 广东省水利水电科学研究院, 广州 510635;
2. 中山大学水资源与环境系, 广州 510275

收稿日期:2013-07-01 修回日期:2013-12-12 出版日期:2014-04-10 发布日期:2014-04-10
通讯作者: 张强（1974-），男，山东沂水人，博士，教授，博士生导师，主要从事流域气象水文学研究、旱涝灾害机理、流域地表水文过程等研究。E-mail：zhangq68@mail.sysu.edu.cn
作者简介:王小军（1979-），男，甘肃宁县人，博士，高级工程师，主要从事农业水资源和水土保持研究。E-mail：wxj1999_2003@163.com
基金资助:
广东省水利科技创新项目（201107）；水利部公益性行业科研专项项目（200901074）；国家自然科学基金项目（41071020）

Study on the Horton fractal dimension with the irrigation canal system characteristics and effective utilization coefficient of irrigation water

WANG Xiaojun¹, ZHANG Qiang², YI Xiaobing¹, XIAO Mingzhong²

1. Guangdong Institute ofWater Resources and Hydropower Research, Guangzhou 510635, China;
2. Department ofWater Resources and Environment, Sun Yat-sen University, Guangzhou 510275, China

Received:2013-07-01 Revised:2013-12-12 Online:2014-04-10 Published:2014-04-10

摘要/Abstract

摘要： 灌区渠系和自然河流水系存在着诸多相似之处，因此，对于灌区渠系体系是否存在及在何种程度下满足Horton 河系定律值得研究。以2010 年广东省53 宗样点灌区为研究对象，分类进行了适用性分析，发现只有四级渠系类灌区满足Horton 河系定律。在此基础上计算了各级渠系类灌区的渠系特征参数和分维值，并利用2007-2011 年实测数据，对其与灌溉水有效利用系数之间的作用关系进行了定性和定量分析，结果表明：渠系工程状况参数（0.1084） >下垫面参数（-0.3554） >渠系结构参数（-0.5189） >面积尺度参数（-0.5392） >渠系分维特征参数（-0.5536）。本研究对于定量表征灌区形态和渠系特征对灌溉水有效利用系数的影响提供了新的途径，研究结果对于指导灌区渠系规划建设，提高用水效率具有积极现实意义。

关键词: Horton 定律, 渠系, 灌溉水有效利用系数

Abstract: There are many similarities between irrigation canal system and natural river system, therefore, whether the Horton River's law can be applied to the irrigation canal system is a problem worthy of study. In this paper, based on the classification of 53 cases of sample irrigation districts in 2010 in Guangdong Province, the applicability of the Horton River's law to the irrigation canal system is analyzed. It is found that only the fourth class irrigation canal district can meet the Horton River's law. And then the parameters of canal system at all levels of irrigation canal system classes and the value of fractal dimensions are calculated. Furthermore, with the measured data of 2007-2011, the qualitative and quantitative coefficient relationship between the previous results and the irrigation water are analyzed. The results show that: canal project status parameter (0.1084) > land surface parameters (-0.3554) > canal structure parameters (-0.5189) > size scale parameter (-0.5392) > canal fractal characteristic parameters (-0.5536). This study provides a new way for achieving the quantitative characterization of irrigation canal system morphology and characteristics of effective utilization coefficient of irrigation water effects, and the results are of important practical value for guiding planning and construction of irrigation canal and improving the efficiency of water use.

Key words: Horton law, canal system, effective utilization, coefficient, irrigation water

王小军, 张强, 易小兵, 肖名忠. 灌区渠系特征与灌溉水利用系数的Horton分维[J]. 地理研究, 2014, 33(4): 789-800.

WANG Xiaojun, ZHANG Qiang,YI Xiaobing, XIAO Mingzhong. Study on the Horton fractal dimension with the irrigation canal system characteristics and effective utilization coefficient of irrigation water[J]. GEOGRAPHICAL RESEARCH, 2014, 33(4): 789-800.

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灌区渠系特征与灌溉水利用系数的Horton分维

Study on the Horton fractal dimension with the irrigation canal system characteristics and effective utilization coefficient of irrigation water

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