贵州农田灌溉水有效利用系数年际变化趋势及影响因素
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摘要
为区域制定节水灌溉规划和评价灌区节水潜力提供依据,运用首尾测法基本原理,对2015-2017年贵州农田灌溉水有效利用系数进行跟踪测算,并对影响农田灌溉水有效利用系数高低的因素进行综合分析。结果表明:2015-2017年贵州农田灌溉水有效利用系数分别为0.451、0.458和0.464,贵州省农田灌溉水有效利用系数呈逐年提高趋势;影响系数变化的主要因素是投资因素、管理因素以及样点灌区调整因素,当水利工程在建设投资达到一定程度后,主要影响因素为管理因素。因此,今后贵州省提高农田灌溉水有效利用系数主要途径应从加强管理入手。
In order to provide basis for the formulation of regional irrigation plan and the evaluation of water saving potential,the authors employ the basic principle of the first and end method to track and calculate effective utilization coefficient of Guizhou farmland irrigation water from 2015 to 2017,and comprehensively analyze the influencing factors.Results:The effective utilization coefficients of farmland irrigation water from 2015 to 2017 were 0.451,0.458 and 0.464 respectively,increasing with years;The factors affecting the effective utilization coefficient of farmland irrigation water included investment,management and sampling sites adjustment.The main influencing factor is management when the investment reached some degree.Consequently,it is suggested to strengthen the management to enhance the effective utilization coefficient of farmland irrigation water in Guizhou.
In order to provide basis for the formulation of regional irrigation plan and the evaluation of water saving potential,the authors employ the basic principle of the first and end method to track and calculate effective utilization coefficient of Guizhou farmland irrigation water from 2015 to 2017,and comprehensively analyze the influencing factors.Results:The effective utilization coefficients of farmland irrigation water from 2015 to 2017 were 0.451,0.458 and 0.464 respectively,increasing with years;The factors affecting the effective utilization coefficient of farmland irrigation water included investment,management and sampling sites adjustment.The main influencing factor is management when the investment reached some degree.Consequently,it is suggested to strengthen the management to enhance the effective utilization coefficient of farmland irrigation water in Guizhou.
引文
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[9]水利部农水司.全国农田灌溉水有效利用系数测算分析技术指导细则[R/OL].(2014-01-03)[2018-01-02].http://www.jsgg.com.cn/Index/Display.asp?NewsID=18207.
[2]贵州省水利科学研究院.2017年贵州省农田灌溉水有效利用系数测算分析成果报告[R].2017.
[3]贵州省人民政府办公厅.贵州省市州和县域经济发展综合测评办法[R/OL].(2017-01-03)[2018-02-01].http://www.gzhjbh.gov.cn/zwgk/zfxxgk/szfwj/788697.shtml.
[4]冯保清.我国不同分区灌溉水有效利用系数变化特征及其影响因素分析[J].节水灌溉,2013(6):29-33.
[5]张玉顺,路振广,王敏,等.河南省农田灌溉水有效利用系数测算分析[J].中国农村水利水电,2017(1):9-12.
[6]管升明,刘方平,靳伟荣.江西省农田灌溉水有效利用系数影响因素分析[J].中国农村水利水电,2017(11):110-112,116.
[7]贵州省水利厅.贵州省水资源公报[R/OL].(2018-01-17)[2018-03-06].http://www.gzmwr.gov.cn/xxgk/zdlygk/szygb/201802/t20180211_3031262.html.
[8]王扬.加快破解贫困地区工程性缺水难题筑牢新时代贵州发展水利根基[J].中国水利,2017(24):73-74.
[9]水利部农水司.全国农田灌溉水有效利用系数测算分析技术指导细则[R/OL].(2014-01-03)[2018-01-02].http://www.jsgg.com.cn/Index/Display.asp?NewsID=18207.