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1989年1月12～17日我处对农二师塔里木垦区的卡拉和铁干里两灌区31～35五个团场的渠道防渗情况及防渗后的经济效益进行了调查。一、基本概况卡拉和铁干里两个灌区总可耕面积60多万亩,卡拉灌区有卡拉水库和卡拉总干渠,灌溉三个团场。铁干里灌区有大西海子水库和铁干里总干渠,灌溉两个团场。灌区内土壤质地轻、地形坡度缓,开垦后大量的引水灌溉使地下水位迅速上升,大面积土地次生盐渍化。作物单产得低,吃粮都难自给。70年代初利用种稻压盐实行水旱
From January 12 to January 17, 1989, I conducted a survey on the seepage control of channels and the economic benefits after seepage prevention of the five communities in the two irrigation districts of Kara-Tieg and Tieganli of Tarim Autonomous Region in Nongsi and Bishan. First, the basic profile Kara and Tiegan two total irrigated area of more than 600000 acres of arable land, Cala aqueduct has Kara reservoir and the main canal, irrigation three groups. Tieganli Irrigation Area has the Daxihaizi Reservoir and Tieganli General Drainage Canal, irrigating two fields. In the irrigated area, the soil texture is light and the terrain slope is gentle. After the reclamation, a large amount of water diversion irrigation causes the groundwater level to rise rapidly and the secondary salinization of large-area land. Crop yields are low, food is hard to self-sufficiency. The early 70s the use of rice pressure salt water and drought