应用生态学报2016，Vol.27Issue(10)：3070-3080,11.DOI:10.13287/j.1001-9332.201610.023
黑龙江省黑河地区森林地上生物量和NPP估测及时空格局
Estimation and spatial-temporal pattern of forest aboveground biomass and NPP in Heihe Region, Heilongjiang Province, China
摘要
Abstract
Based on 1390 fixed plots data collected in 2005 and 2010 in Heihe Region of Heilongjiang Province,biomass allometric models of tree species in northeastern China were applied to calculate aboveground biomass (AGB) and net primary productivity (NPP).Based on ETM+ imageries in 2005 and 2010,Kriging and co-Kriging methods in geostatistics were applied to interpolate AGB and NPP and different variogram models were compared.The distribution maps of AGB and NPP were produced using the best interpolation method.The change of AGB and NPP over time and space and the impacts of stand types and terrain factors (aspect,slope and altitude) on the distributions of AGB and NPP were analyzed by comparing the distribution maps in different years.The results indicated that AGB had an increasing trend and areas with AGB higher than 40 t · hm-2 also increased.However,NPP decreased from 2005 to 2010.Some high NPP regions were changed into low NPP regions.AGB and NPP were correlated with forest terrain factors,especially altitude,which indicated that the distribution of biomass and NPP were highly influenced by altitude.During the study period,AGB increased at all slope aspects while NPP decreased,AGB and NPP had an increasing trend with raised slope degree and altitude,the AGB and NPP of evergreen coniferous forest increased most,and the AGB of mixed deciduous-coniferous forest and NPP of broad-leaved deciduous forest had the least increase.关键词
地上生物量/净初级生产力/空间格局Key words
aboveground biomass/net primary productivity/spatial pattern引用本文复制引用
赵颖慧,李思琪,甄贞,李凤日,魏庆彬..黑龙江省黑河地区森林地上生物量和NPP估测及时空格局[J].应用生态学报,2016,27(10):3070-3080,11.基金项目
本文由中央高校基本科研业务费专项(DL13EA05-03)资助 This work was supported by the Fundamental Research Funds for the Central Universities (DL13EA05-03). （DL13EA05-03）
