Studies on the Biological Community in Lac Plantation

This paper deals with the biological community types from the eco-economic viewpoint in several lac plantations different at Zhenyuan county, Yunnan province from 1987 to 1989,studies have been conducted on the relationship between biological communities and their environments, between different community to their structures productions and values and on the correlations among different species as well as functions of intercropping crops in the communities. The results have shown that the economic output and its value of lac-grain-intercropping and tree-shrub-mixed forests are 2.4~4.4 and l.9~2.0 times higher than those of the checks respectively.