Study on Soil Fertility Decline of Pinus kesiya var. langbianensis with Principal Component Analysis
The soil fertility of different generations (wildwood, second forest, plantation) of Pinus kesiya var. langbianensis were studied through the investigation in Jinggu, Yunnan Province, where is the central place of Pinus kesiya var. langbianensis. By using the principal component analysis method and selecting state factors of soil fertility to analyze the decline of site quality. The results showed that the site quality gradually decline if Pinus kesiya var. langbianensi are planted by generations.
Soil qualityPinus kesiya var. langbianensisPrincipal component analysis method
国家科技期刊平台
NSTL
万方数据
维普
