摘要
应用全收割法测定广东省鼎湖山南亚热带常绿阔叶林林下层植物生物量 ,林下植物总生物量为 12 9 58g/m2 ,其中茎、枝、叶、根的生物量占总生物量的比例约为 4 0 % ,9 0 % ,2 2 % ,2 9% .由部分实测数据建立林下植物个体生物量估算模型为W =0 0 0 4 2 ·H1 932 3.应用该模型得到的估算值 ,与收获实测值的相对误差仅为 1 8% ,具有良好的精度 .此外 ,还通过改变取样面积对该模型的适用性进行了探讨 .
Linear and nonlinear relationships of biomass of the undergrowth plants with basal diameter (D), height(H) and their combinations of DH, and D 2H were developed in the lower subtropical evergreen broad leaved forest in Dinghushan reserve.The nonlinear equation, W=0 0042·H 1 9323 , could be used to estimate the total biomass of all the plots, it gave the relative error of only 1 8% In addition, data from more than 1 200 harvesting individuals indicated that the total biomass was 129 58 g/m 2.The ratio of biomass of stem, branch, leaf and root was 40∶9∶22∶29.
出处
《生态科学》
CSCD
2000年第4期62-66,共5页
Ecological Science
基金
国家自然科学基金!资助项目 ( 9390 0 11)
中国科学院中国生态系统研究网络 (CERN)资助
关键词
生物量
预测模型
林下层植物
南亚热带常绿阔叶林
biomass
prediction equation
lower subtropical evergreen broad leaved forest
undergrowth plants
Dinghushan
