论文部分内容阅读
忻县高城公社,位于云中河北岸,滹沱河西畔。由于两河在下游不远处交汇,水流速度减慢,泥沙大量沉积。久而久之,地形变得内低外高,河水倒灌,积盐积碱严重,成为忻定盆地有名的盐碱中心。据高城、王府和张村等14个点的土壤普查结果,0-20厘米土壤的pH值8.7,全盐含量0.13-0.72%。全社耕地35,014亩,大都属冲积性沙壤土,养分贫瘠,严重缺磷。0-20厘米耕层内,有机质0.35-0.93%,全氮0.022-0.05%,速效钾83-153ppm,速效磷1-9ppm。
Xin County Gaocheng commune, located in the cloud in the north bank of Hebei Hutuo River. Due to the convergence of the two rivers, not far from the lower reaches, the water flow rate slows down and sediments are deposited in large quantities. With the passage of time, the terrain became low and high inside, the river water intrusion, serious accumulation of salt and alkali, become a well-known salt basin Xin Ding center. According to the soil census results of 14 spots including Gaocheng, Wangfu and Zhangcun, the pH value of 0-20 cm soil was 8.7 and the total salt content was 0.13-0.72%. The whole community 35,014 acres of arable land, mostly alluvial sandy loam, nutrient-poor barren, a serious shortage of phosphorus. 0-20 cm tillage, 0.35-0.93% organic matter, total nitrogen 0.022-0.05%, available potassium 83-153ppm, available phosphorus 1-9ppm.