七里井大队位于内黄县城北七里,卫河南岸,硝河下游,古黄河西侧.属黄河冲积土壤,土质粉沙,盐碱严重.盐碱类型属氯化物碳酸盐盐土,并有点片瓦碱分布.盐碱积于表层O～5厘米,土壤含盐0.4～0.6%,地下水埋深1970年前1.5～2米,现在已降到6～7米,地下水矿化O.08～O.11%,水质较好.土壤剖面是:O～80厘米粉沙壤土,80～95厘米为一粘土隔层,95～200厘米为轻度粘土,200～220厘米又是一重粘土隔层,再向下为深厚的沙土层.全大队分三个生产队,总耕地1140亩,其 Qili wells brigade is located in Neihuang County, north of the city, the south bank of the Wei River, the lower reaches of the Lower Reaches of the Yellow River, the west of the Yellow River, belongs to the Yellow River alluvial soil, soil silt, serious saline. Saline types are chloride carbonate salt, and a bit Alkalis distribution Alkalinity plot O ~ 5cm in surface layer, 0.4 ~ 0.6% saline in soil, groundwater depth 1.5 ~ 2m before 1970, now down to 6 ~ 7m, groundwater mineralization O.08 ~ O .11% better water quality soil profile is: O ~ 80 cm pink sandy loam, 80 to 95 cm for a clay compartment, 95 to 200 cm for the mild clay, 200 to 220 cm is a heavy clay compartment, and then Down for the deep sand layer. The entire brigade is divided into three production teams, a total of 1140 acres of arable land, its