【摘要】 根据土壤物理性质测定和水分定位观测结果 ,结合当地气候、作物生育特点 ,将黄泛平原粗砂潮土土壤水分垂直性分布划分为 :速变层 (0～ 4 0cm) ,活跃层 (4 0～ 10 0cm)和稳定层 (10 0cm以下 ) ;将土壤水分季节性动态划分成 :强烈腾发期、补充下淋期、缓慢消耗期和相对稳定期更多还原

【Abstract】 Through the measuring of soil physical properties and fixed position observation of soil water, this paper, considering the characteristic of the local climate and crop growth, divided the water vertical distribution of coarse sandy soil in Huangfan Plain into rapidly changeable layer (10～40 cm), live layer (40～100 cm),and stable layer (below 100 cm); and divided the seasonal trend of soil water into strong evapotranspiration period, supplementary percolation period, slow consumption period, and relative equilibrium period.更多还原