江苏省昆山是位于太湖流域水网地区,雨水充沛,河网密布,以江南水乡著称。年平均雨量多达1050毫米,其中麦子中后期,3—5月间近260毫米,平均不到两天半就有一个雨日,1979年3月29日至4月1日,降雨达151毫米。由于雨水多、地势低、土质粘、透水性差,加之本地区水稻土耕层下面,有6—8厘米厚较密实的犁底层,阻止雨水下渗,滞留耕层,引起根域水分过多,造成麦田严重渍害。暗管排水有良好的治渍效果,我们在暗管作底层排水的基础上,研究打浅鼠道、划线沟和开浅明沟等不同型式的上层排水设施,加强排出田间上层积水,打破犁底层,加速雨水垂直下 Kunshan, Jiangsu Province is located in the Taihu Lake Basin water network, abundant rainfall, river network, known as the Jiangnan Water Village. The average annual rainfall of up to 1050 mm, of which wheat in the late, nearly 260 mm between March and May, an average of less than two and a half days there is a rainy day, March 29, 1979 to April 1, rainfall of 151 mm . Due to the rain, low topography, soil sticky, poor water permeability, combined with the paddy soil in the region below, there are 6-8 cm thick plow the bottom to prevent infiltration of rainwater, stagnant tillage, causing water in the root zone is too much, Caused a serious wheat fields stains. Underground pipe drainage has a good effect of governance, we in the bottom of the underground pipe drainage, based on the study to play asygotes, scribe ditch and open shallow ditch and other types of upper drainage facilities, to enhance discharge of water in the upper field, breaking Plow the ground floor to speed up the rain vertically