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天然黄山松林密度效应规律
Density effects of natural Pinus taiwanensis forest
【摘要】 根据天然黄山松林样地资料,比较和筛选了天然黄山松林密度效应模型,并对密度效应最优模型进行了生产弹性分析和边际产量分析,测出天然黄山松林密度的生产弹性值和边际产量.
【Abstract】 Based on the data from plots of natural Pinus taiwanensis in Shouning of Fujian Province, the best density effect model of natural P. taiwanensis was selected and analyzed, and the values of the productive elasticity and marginal yield of natural Pinus taiwanensis for the model were calculated.
【关键词】 黄山松;
密度效应;
生产弹性;
边际产量;
【Key words】 Pinus taiwanensis; density effeet; productive elasticity; marginal yield;
【Key words】 Pinus taiwanensis; density effeet; productive elasticity; marginal yield;
- 【文献出处】 福建农业大学学报 , 编辑部邮箱 ,2004年03期
- 【分类号】S791.260
- 【被引频次】9
- 【下载频次】60