Study on Influential Factors of Crop Water Productivity in Irrigable Land of Arid Area Oasis--A Case Study of the Linze Oasis

摘要：

　　The aim of this paper was to research influential factors of crop water productivity in irrigable land of arid area oasis.In middle reach of Heihe River in Linze County of Zhangye City,maize,a major crop in irrigable land in the oasis,was studied and nine influential factors were chosen through grey relation analysis.According to the analysis results,top five factors influencing water productivity of maize during 1995-2009 were as follows: applied quantity of chemical fertilizers>labors input>seeds>mulch amount>pesticide amount,which indicated that controllable factors,instead of uncontrollable ones,dominate in influence of water productivity of maize in the oasis irrigated area.With limited water resource,investment of controllable factors in highefficient agricultural production should be the major strategy to improve water productivity of maize in irrigable land of arid area oasis.

关键词： Maize Water productivity Influential factors Gray relation analysis Irrigated areas in oasis

作者: Guanglu Hu Zhongrong Zhang Lijuan Fan

作者单位: School of Environmental and Municipal Engineering Lanzhou Jiaotong University,Lanzhou, 730070, China School of Mathematics, Physics & Software Engineering Lanzhou Jiaotong University Lanzhou 730070, Ch School of Environmental and Municipal Engineering Lanzhou Jiaotong University Lanzhou, 730070, China

会议类型: 国际会议

会议名称: 2012年水资源综合管理地理信息国际会议

会议地点: 兰州

会议语种:英文

页码: 1-5

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）