我省淮南圩田和平田地区河网水位高,土质粘重,渗透性差,保水力强,地下水位高,因此三麦湿害最为严重。其次是丘陵地区的冲田和部分塝田的里坎,由于塘坝和高田的水分经常向下渗漏,使这类麦田土壤含水量增大,造成冷浸湿害。高沙地区,虽然地势较高,土壤透水性较好,但也有一些河网稀疏的“实心田”,在多雨的情况下,地下水位升高,也能造成湿害。有的地方布局不当,形成水旱交错,使秧田水、早稻田水、萍湖田水以及渠道水,渗入麦田,形成人为的湿害。我省各地在与湿害作斗争中积累了丰富的经验,主要有以下几点:一、控制河网水位联圩并圩,内外分开,控制河网水位,这是圩区治渍的基础。高平田地区以及丘陵地区也有控制沟塘水位的问题。据研究,当地下水位降到接近河水位高度后,下降速度即很缓慢。因此,河水位的控制标准,应比三 Huainan Polder and Pingtian area in our province river water level is high, soil sticky, poor permeability, strong water retention, groundwater level is high, so the three wheat is the most serious wet. Followed by the hilly area of ​​Okita and some ridge Tian ridge, due to pond dam and Takada often seepage of water, so that such wheat field soil moisture content increases, resulting in cold wet damage. In Gaosha district, although the landform is relatively high and the water permeability of the soil is good, some “solid fields” of river networks are sparsely populated. In the case of rainy days, the groundwater level rises and it can also cause wet damage. Improper layout in some places, resulting in stagnation of water and drought, so that seedling water, Waseda water, Pinghu Tian water and channel water into the wheat fields, the formation of artificial wet damage. The province has accumulated rich experiences in the fight against wetlands. The main points are as follows: 1. Controlling the water level of the river network in conjunction with the dike and the separation of the internal and external water levels in the river network are the foundations for the treatment of the dike. There is also the problem of controlling the level of ditches in the Gao Pingtian area and in the hilly areas. According to the study, after the local water table dropped to a level close to the water level, the rate of decline was very slow. Therefore, the river level control standards should be three