平原低洼易涝地区,在全面规划,综合治理治水改土中,如何正确划分排水分区,加强排水是洼改治涝改良土壤的主要措施。各种农作物的正常生长都要求一定的适宜环境,水分条件是其中重要一项,而水分条件又是和土壤状况、空气、肥分、微生物活动等条件紧密相关的,所以人为的进行水分状况的调节,是确保农作物高产稳产的基本手段之一。低洼易涝地区,往往由于汛期大量降 In the plains of low-lying and flood-prone areas, how to properly divide the drainage zones and improve the drainage is the main measure to improve the water quality of flood control and soil improvement in comprehensive planning and comprehensive improvement of water and soil improvement. The normal growth of all kinds of crops requires a certain suitable environment. Water condition is one of the important items, and the moisture condition is closely related to soil conditions, air, fertilizer, microbial activities and other conditions, so artificial water conditions Regulation is one of the basic means to ensure the high and stable crop yield. Low-lying flood prone areas, often due to a large number of flood drops