A study on agricultural land and water management against decrease of irrigation water supply-A case study of the lower Ili River basin, Kazakhstan

第十一届国际旱地发展会议——While groundwater level was about 8m from ground surface before irrigation district developed,after 1970's when rice cultivation started groundwater level rose sharply up to about 2m.Recently,groundwater level shows decrease trend.The influence of the seepage is considered to reach wholefields in irrigation district.The condition of water supply to fields is affected on not only rice cropped field area but also position of rice cropped field.


关键词: 地下水水位 农作物 水资源利用

主讲人:Toshihiko Anzai 机构:The United Graduate School of Agricultural Sciences

时长:0:15:28 年代:2013年