浙江省马尾松林生物量换算因子研究

Research on Biomass Expansion Factor of Pinus massoniana Forest in Zhejiang

以马尾松林为研究对象,在浙江省12个县市选取2009年CFI体系的57个马尾松林样地,根据样地平均木,在样地外围相似地段确定解析木共计57株,联立树高曲线方程和生物量模型,同时使用已公开发表的10个马尾松林生物量模型进行估算,由单株累加获得CFI系统样地的生物量,计算样地生物量与蓄积之比(BEF),建立BEF与林分蓄积之间的关系。根据2009年浙江省CFI体系数据,推算全省马尾松BEF=0.883 9 t/m3。

Taking Pinus massoniana forest as the subject of this study,57 sample plots were selected from 12 counties in Continuous Forest Inventory（CFI）（2009） of Zhejiang province.According to the average trees of 57 plots,57 analytic trees were selected at similar forest outside the sample plots.Simultaneous equations of DBH-H equation and biomass model were established.Biomass of sample plot was estimated by 10 published biomass models.The ratio of stand biomass and stand volume is BEF,and the relationship between stand stock and BEF was established.According to Zhejiang CFI system 2009（eighth）,BEF of P.massoniana forest in Zhejiang province was 0.883 9 t/m3.