摘要
对湖南省沅陵县保留檫木较多的3种类型天然混交林进行调查测定,结果表明,这些混交林中的檫木都具有较大的生长优势。其林分密度为750～2500株/10~4m^2,生物量为150～300t/10~4m^2,净生产量为10～17t/10~4m^2·a。林木仍然处于继续生长阶段,各类型林分净生产量组成和林木层各组份净生产量的分配,都表现为基本一致的规律。
Investigation has been conducted on three types of natural sassafras mixed forests in Yuanling County of Hunan Province. The sassafras trees in the forests are more dominant in growth. The stand density is 750-2500 stems/10~4m^2, the biomass 150-300t/10`4m^2, the net productivity 10-17t/10~4m^2·a. The forest trees still grow vigourously. The law of net productivity composition in various stand types is basically identical with that of net productivity distribution in various forest tree organs.
出处
《中南林学院学报》
CSCD
1990年第2期121-128,共8页
Journal of Central South Forestry University
关键词
混交林
檫木
生物量
营养元素
natural mixed forest
Sassafras tzumu Hemst
biomass
net productivity
