The observation method of fixed position was used to study the characteristics of ecological environment in closing process of engineering young forest of Pinus massoniana Lamb from 1991 to 1996.
年，对桂东南马尾松工程幼林郁闭过程的生态环境变化进行定位观测研究。
The observation method of fixed position was used to study the characteristics of ecological environment in closing process of engineering young forest of Pinus massoniana Lamb from 1991 to 1996.
年，对桂东南马尾松工程幼林郁闭过程的生态环境变化进行定位观测研究。
应用推荐