三江平原是我国最大的沼泽区和重要的商品粮基地。全区尚有近三千万亩沼泽湿地未能合理利用,现有耕地也受春旱秋涝的频繁威胁,以致粮食产量长期处于低而不稳的状态。这个问题在东北部的建三江农场管理区尤其突出。由于该区地面排水不畅和远离承泄区,所以明渠排水往往事倍功半。经过几年在该区进行井排井灌小区试验表明,该措施不仅能促进地表水和地下水的相互转化,化害为利,综合利用水资源;而且不受地表承泄条件限制,是一个既能排又能灌,一井两用,排灌结合改造沼泽的新途径。本文拟就大面积井群排灌改造沼泽问题作一初步探讨,以期为扩大试验和推广应用提供初步的理论根据。

Based on the typical region experiments of well-drainage and well-irrigation and regional hydrogeological survey data in1/200000,this reporthas approached the problem of transforming the swamp by means ofgroup well-drainage and irrigation of a large area in the micro-pressurewater region of northeast Sanjiang Plain,through the calculation of thefalling depth of water level both in partly interferring recovery andregional evenly spaced well layout,and balanced calculation between theunderground storage capacity and drain-quantity of surface waterrequired.The priliminary theoretical basis for enlarging experiments andextending applications on the new measure of well-drainage and well-irrigation is thus provided.