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Partial net primary production of a mixed dipterocarp forest: Spatial patterns and temporal dynamics
Author(s) -
Tan ZhengHong,
Deng XiaoBao,
Hughes Alice,
Tang Yong,
Cao Min,
Zhang WenFu,
Yang XiaoFei,
Sha LiQing,
Song Liang,
Zhao JunFu
Publication year - 2015
Publication title -
journal of geophysical research: biogeosciences
Language(s) - English
Resource type - Journals
eISSN - 2169-8961
pISSN - 2169-8953
DOI - 10.1002/2014jg002793
Subject(s) - primary production , environmental science , plant litter , ecosystem , basal area , atmospheric sciences , forestry , ecology , geography , geology , biology
We examined how and why partial net primary production (NPP part ) varies across time and space in a Chinese dipterocarp forest. We hypothesize that (1) soil geochemistry explains the spatial pattern of NPP part within the plot and (2) NPP part can be used to measure the degree of drought resilience of a natural forest. Spatially, NPP part was autocorrelated in the range of 75.3 m and homogenous. This spatial pattern could not be well explained by any of the soil properties individually or in combination. If drought sensitivity is defined by marked reduction in NPP part , the studied forest is drought resilient even when a longer and drier than usual drought hit. Although annual NPP part was unchanged (vary within 18.24 and 18.52 t ha −1 yr −1 ) after the drought, the allocation of NPP part to short‐lived litterfall increased, which has further effects on the ecosystem net carbon balance.