摘要
在云南热区营造山桂花、西南桦、马尖相思、高阿于枫等４种人工林，只要经营得当，对林地土壤理化性质并不造成重大影响，不会引起地力迅速衰退。４各人工林土绵大致趋势是：１９９３、１９９５年肥力大多略呈下降趋势，１９９５～１９９７年有所上升。
Soil fertility of the plantations of Paramichelia baillonii, Betula alnoides, Acacia Mangium and Altingia excelsa in tropical area of Yunnan does not decline rapidly, and the physical and chemical properties of forestland are not affected greatly if the plantations can be managed properly. The approximate trend of the change of soil in the plantations of four species is that soil fertility declined slightly from 1993 to 1995, and rose a little from 1995 to 1997.
出处
《土壤与环境》
CSCD
2000年第2期110-113,共4页
Soil and Environmental Sciences
基金
云南省应用基础自然基金项目(应基92c071)
关键词
热区
人工林
森林土壤
土壤肥力
灰关联度
tropical area
plantation
forest soil
soil fertility
gray related degree
