在丘岭山地,梯田的里堰没有堰下沟的情况下,往往出现:下雨,水往地里流;雨后,水往地里渗。造成里堰土壤板结,阴湿澥涝,作物生长发育不良,群众俗称“半边涝”。 “半边涝”对庄稼的危害在整个生长期间都很明显,影响产量也很大。拿花生来说吧,播种后“半边涝”,由于在土壤中水分过多,通气不良,地温又低,发生“烂种”;出苗后“半边涝”,由于土层浅,温度高,在强日下发生“烂根死苗”;结果期“半边涝”,荚果发育慢,果小果秕;成熟前“半边涝”,成实饱满的荚 In the Qiu Ling mountains, terrace weir without weirs under the ditch, often appear: rain, water flow in the ground; after the rain, the water infiltration to the ground. Resulting in weir soil compaction, wet droughts, poor crop growth and development, the crowd commonly known as “half of the floods.” The harms of the “half-floods” on crops are evident throughout the growing season, affecting yields as well. Take peanuts, for example, “half of the waterlogging” after sowing, due to excessive water in the soil, poor ventilation, low ground temperature, the occurrence of “rotten species”; post-emergence “half of the floods,” due to shallow soil, Strong roots occur “rotten roots dead seedlings”; the results of “half of the floods”, pod development slow, fruit small pomfret; pre-mature “half waterlogging”, full of pods