林业科学Issue(10)：16-23,8.DOI:10.11707/j.1001-7488.20141003
1901-2008年小兴安岭森林NPP估算
Estimation of Forest NPP in Xiaoxing’an Mountains in 1901-2008
摘要
Abstract
In this study,net primary productiviby ( NPP ) data at various stand ages for eight major forest types in Xiaoxing’an Mountains in northeast China were estimated from stand yield tables with consideration of the total biomass increment and foliage and fine-root turnovers. Then,we estimated the spatial and temporal changes in NPP according to NPP-age relationships and InTEC model. The results indicated that the forest NPP increased quickly at young ages,reached the maximum value at middle age (10 -40 years old),and then decreased to a relative stable level at old ages. NPP of planted stands in Xiaoxing’an Mountains was larger than the natural forest. Natural coniferous forest can accumulated more carbon than natural broad-leaved mixed forest and natural coniferous and broad-leaved mixed forest. Forest NPP in Xiaoxing’an Mountains in 1901-2008 presented an increase trend,NPP in 2008 increased by 30 percent more than that in 1901. Forest NPP was higher in middle part and lower in northern and southern part because of the elevation effects on NPP.关键词
净初级生产力( NPP)/林分年龄/InTEC模型/气候Key words
net primary productivity ( NPP)/stand age/InTEC model/climate分类
农业科技引用本文复制引用
于颖,范文义,杨曦光..1901-2008年小兴安岭森林NPP估算[J].林业科学,2014,(10):16-23,8.基金项目
“十二五”国家科技支撑项目(2011BAD37B01) （2011BAD37B01）
中央高校基本科研业务费(DL13BAX09) （DL13BAX09）
中央高校基本科研业务费(DL13BAX07)。 （DL13BAX07）
