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›› 1985, Vol. 21 ›› Issue (3): 292-297.

• 研究简报 • 上一篇    下一篇

农桐间作下土壤水肥动态及其变异性

黄雨霖   

  1. 中国林业科学研究院林业科学研究所
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1985-08-25 发布日期:1985-08-25

THE ACTIVITY AND VARIATION OF SOIL MOISTURE AND NUTRIENTS UNDER POLOWNIA-CROPS INTERPLANTING

Huang Yulin   

  1. Forest Research Institute,Chinese Academy of Forestry
  • Received:1900-01-01 Revised:1900-01-01 Online:1985-08-25 Published:1985-08-25

Abstract: The following problems are studied in this paper: a) The seasonal variation of soil moisture and nutrients under Polownia-crop interplanting is affected by climate condition.The data analyses indicate that the content variations of soil moisture,Nitrogen,Calcium carbonate,Soluble calcium,and Magnesium occur mainly in May or August every year,the statistcal significale F being as high as 0.01. b) The content variations of the above mentioned materials are closely related with the distance from the tree plant and affected by biological elements.The variations are most significant within the scape of 2m—10m from the tree plant and within the depth of 80—100cm(F=0.05). These variations are intimately connected with both litter and rootsystem of Polownia forest.