银北河西灌区水盐平衡状况与盐渍土改良关键技术措施

Water and Salt Balance in Hexi irrigated Areas of Northern Yinchuan and Key Techniques to Ameliorate the Salinized Soils

以银北河西灌区３５年的水盐变化资料为基础，论述了银北灌区现在的水盐平衡状况，分析了水盐平衡状况较差的原因，进而提出在不断改善自流排水的前题下，加强电排站、机井、暗管排水等强排措施是银北盐渍土改良的关键，并就如何实施强排提出了一些见解。

According to water and salt change clata of 35 years in Hexi irrigated areas of Northern Yinchuan the paier discussed the current water and salt state in the areas,studied the ...s.,of unfavorable water and sail balance and then pointed that in conditions of improvin.g gravity drainage the eleclricity-driven pumping station,electrici ty-driven well.and coyered drain system are all the key drainage faciliti ed.The authors made some proposals to implement electr ic ity-driv,n drain measures.