森林生物量扩展因子研究进展

Review on biomass expansion factors for forest

森林生物量是研究森林生态系统结构和功能的重要基础数据,生物量因子(Biomass factors,BEs)法是估测森林生物量的主要方法之一,生物量扩展因子则是其中重要的估测参数,它主要用于树干生物量与林木总生物量以及各维量生物量之间的转换。从生物量扩展因子的定义以及生物量扩展因子与森林类型、林木大小、林分密度等因素之间的变化规律等方面进行综述,分析了国内外对生物量扩展因子的研究现状,指出在生物量扩展因子的研究中存在的方法与定义不一致、缺乏生物量扩展因子影响的系统研究以及数据的适用性较差等问题,并对生物量扩展因子的研究进行展望。

Forest biomass is an important basic data to study the structure and function of forest ecosystem, Biomass Factors （BEs） is the important method for estimation of forest biomass. And biomass expansion factor （BEF）, one of the important estimation parameters, is mainly used for the conversion between the stem biomass and total biomass and other forest dimensions of the biomass. This paper analyzed the research status of BEF, the definition of BEF and its relationship with the forest type, tree size, stand density change and other factors. And some problems were found, such as the inconsistencies between method and definition, the lack of systemic research on influence factors, and the poor applicability of BEF datum. Finally, the research on BEF was prospected.