摘要
Abstract
Forestry yield models were selected to describe the growth process of the Chinese fir plantation stand factors- (diameter, tree height, volume, etc.) based on the data of 198 subcompartment in Miaoshou for est-farm of Jinde County. The parameters, the remaining standard deviation, relevant index of stand factor growth models were calculated by nonlinear equations of Mai Kuate computation. According to the relevant index and the reside standard deviation, the best yield model for the Chinese fir plantation stand factors was given. The result showed that Richards equation is the best. D = 455.409957 0.1976 (1- e-0.0002t) 0.7534 ,H = 8.926 8S10.3702 (1-e-0.029 4t) 1.103 9,M= 98.808 5SI0.306 3 (1- e-0.132 3 ,) 4.709 7 .The empirical yield table of Chinese fir plantation was compiled based on above stand factor growth models, which can provide basis for yield forecast and forest man agement of Chinese fir plantation stand in Miaoshou forest-farm.关键词
森林资源二类调查数据/杉木人工林/Richards方程/经验收获表Key words
forest resource inventory data/ Chinese fir plantation/ Richards equation/ empirical yield table分类
农业科技
