欢迎访问《中国农学通报》,

中国农学通报 ›› 2005, Vol. 21 ›› Issue (7): 123-123.

• 目次 • 上一篇    下一篇

黄土高原坡地封闭式水平带侧柏人工林土壤肥力研究

董建辉,薛泉宏   

  • 出版日期:2005-07-05 发布日期:2005-07-05

The Investigation on Soil Fertility of Platycladus Orientalis Plantations on Horizontal Area of Steep Slope on Loess PlateauL

Dong Jianhui, Xue Quanhong   

  • Online:2005-07-05 Published:2005-07-05

摘要: 研究了黄土高原陡坡封闭式水平带侧柏人工林的土壤肥力变化。结果表明:在整地、抚育及侧柏生长的综合作用下,陡坡水平带内侧柏根区80㎝土层土壤有机质、全氮、速效氮、速效钾及阳离子代换量较无林地分别提高141.0%、18.8%、97.8%及48.0%,pH值降低4.7%,碳酸钙在0~40㎝土层降低6.3%~16.8%,在41~80㎝提高11.6%~24.0%。

Abstract: It was investigated that Platycladus orientalis plantations soil fertility changing of the horizontal zone of steep slope on Loess Plateau. The results indicated that : in the 80㎝ soil matter, total nitrogen, available nitrogen, available potassium and the cation exchange capacity were enhanced by 141.0%,18.8%,20.9% and 48.0%, respectively, and pH decreased by 4.7%. In the soil horizon of 0~40㎝ and 41~80㎝, calcium carbonate decreased by 6.3%~16.8% and enhanced by 11.6%~24.0%, respectively too.