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干旱新疆区不同灌溉模式灌溉定额及变化研究

作  者:
周和平;王永增;孙志锋;陈金龙
单  位:
新疆维吾尔自治区水利厅;新疆温宿县水利局
关键词:
干旱区农业;灌溉模式;灌溉定额
摘  要:
采用1998年新修正彭曼-蒙特斯(P-M)方法计算作物蒸散量ET0,以不同作物系数KC分析作物需水量ETC,基于普通克里格法、灌溉试验、灌区调查与典型灌水试验综合技术进行区域插值和比较分析农业灌溉定额,研究表明,新疆常规沟畦灌、膜上灌、喷灌、微灌4种灌溉模式,正常年份(P=50%)灌溉定额分别为5 100、4 350、3 820和3 600m3/hm2;干旱年份(P=75%)灌溉定额分别为5 625、4 800、4 200和3 975m3/hm2。4种灌溉模式按面积加权综合灌溉定额(P=50%)为4 515m3/hm2;P=75%为4980m3/hm2。应用柯布-道格拉斯函数研究综合灌溉定额变化,结果表明,高效节水灌溉发展对综合灌溉定额下降贡献效应明显,常规灌溉是综合灌溉定额增加的主因。研究成果为干旱新疆农业水资源总量控制定额管理提供了技术依据。
译  名:
Irrigation Quota and Its Changes of Different Irrigation Modes in Arid Xinjiang Region
作  者:
ZHOU He-ping;WANG Yong-zeng;SUN Zhi-feng;CHEN Jin-long;Water Resources Department of Xinjiang Uygur Autonomous Region;Water Conservancy Bureau of Wensu County;
关键词:
agriculture in arid areas;;irrigation mode,irrigation quota
摘  要:
The Penman-Jared Montz(P-M)method new amended in 1998year was adopted to calculate the ET0value of crop and different crop coefficients KC were used to analyze the ETC value.Based on the integrated technology and the regional interpolation method,including General kriging law,irrigation test,irrigation district investigation and typical irrigation test,the agricultural irrigation quota was analyzed and compared.The research indicated that,in Xinjiang,the irrigation quota of general furrow and border irrigation,irrigation on plastic film,sprinkler irrigation and micro-irrigation was 5 100,4 350,3 820and 3 600m3/hm2 in normal hydrology year(P=50%),and 5 625,4 800,4 200and 3 975m3/hm2 in drought hydrology year(P=75%),respectively.The areaweighted comprehensive irrigation quota of the four irrigation modes was 4 515m3/hm2(P=50%)and 4 980m3/hm2(P=75%).The Cobb-Douglas function was applied to study the change of the comprehensive irrigation quota and the result showed that the development of high-efficient water-saving irrigation had effective contribution to the decrease of the irrigation quota,while the general irrigation mode was the main reasons for the increase of the irrigation quota.The research results provided technical basis for the total amount control and quota management of agriculture water resource in arid Xinjiang.

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