Birch NPP: average NPP per tree by diameter sizeclass for 4 time periods between 1993 and 2008
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https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-bnz.419.15
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资源简介：
This data set is derived from BNZ LTER inventory plots, where DBH of all trees is measured every 3 to 4 years, and increment changes in AG biomass are derived from allometric equations. Data included in this file were obtained from 1993, 1997, 2000, 2004 and 2008 inventories, generating 4 growth increments between 1997 and 2008. Data are reported by diameter sizeclass (10 cm increments), and include NPP increments (averaged across all trees within each landscape and successional stage) for which adequate numbers of trees (typically >5) were present to obtain useful measurements (see N in data file).
提供机构：
Environmental Data Initiative
