气候变化领域集成服务门户(CCPortal): Logging intensity drives variability in carbon stocks in lowland forests in Vietnam

CCPortal

DOI	10.1016/j.foreco.2020.117863
	Logging intensity drives variability in carbon stocks in lowland forests in Vietnam
	Stas S.M.; Le T.C.; Tran H.D.; Hoang T.T.H.; van Kuijk M.; Le A.V.; Ngo D.T.; van Oostrum A.; Phillips O.L.; Rutishauser E.; Spracklen B.D.; Tran T.T.A.; Le T.T.; Spracklen D.V.
发表日期	2020
ISSN	0378-1127
卷号	460
英文摘要	Forest degradation in the tropics is generating large carbon (C) emissions. In tropical Asia, logging is the main driver of forest degradation. For effective implementation of REDD+ projects in logged forests in Southeast Asia, the impacts of logging on forest C stocks need to be assessed. Here, we assess C stocks in logged lowland forests in central Vietnam and explore correlations between logging intensity, soil, topography and living aboveground carbon (AGC) stocks. We present an approach to estimate historical logging intensities for the prevalent situation when complete records on logging history are unavailable. Landsat analysis and participatory mapping were used to quantify the density of historical disturbances, used as a proxy of logging intensities in the area. Carbon in AGC, dead wood, belowground carbon (BGC) and soil (SOC) was measured in twenty-four 0.25 ha plots that vary in logging intensity, and data on recent logging, soil properties, elevation and slope were also collected. Heavily logged forests stored only half the amount of AGC of stems ≥10 cm dbh as lightly logged forests, mainly due to a reduction in the number of large (≥60 cm dbh) trees. Carbon in AGC of small trees (5–10 cm dbh), dead wood and BGC comprised only small fractions of total C stocks, while SOC in the topsoil of 0–30 cm depth stored ~50% of total C stocks. Combining logging intensities with soil and topographic data showed that logging intensity was the main factor explaining the variability in AGC. Our research shows large reductions in AGC in medium and heavily logged forests. It highlights the critical importance of conserving big trees to maintain high forest C stocks and accounting for SOC in total C stock estimates. © 2020 The Authors
关键词	Biomass Carbon Digital storage Soils Topography Tropics Dead wood Forest carbons Forest degradation LANDSAT Southeast Asia Tree census Forestry belowground biomass carbon sequestration census dead wood forest soil Landsat logging (timber)soil organic matter topography Biomass Carbon Dead Wood Southeast Asia Topography Tropics Viet Nam
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133004
推荐引用方式 GB/T 7714	Stas S.M.,Le T.C.,Tran H.D.,et al. Logging intensity drives variability in carbon stocks in lowland forests in Vietnam[J]. Forest Ecology and Management,2020,460.
APA	Stas S.M..,Le T.C..,Tran H.D..,Hoang T.T.H..,van Kuijk M..,...&Spracklen D.V..(2020).Logging intensity drives variability in carbon stocks in lowland forests in Vietnam.,460.
MLA	Stas S.M.,et al."Logging intensity drives variability in carbon stocks in lowland forests in Vietnam".460(2020).