气候变化领域集成服务门户(CCPortal): C-exchange and balance following clear-cutting in hemiboreal forest ecosystem under summer drought

CCPortal

DOI	10.1016/j.foreco.2020.118249
	C-exchange and balance following clear-cutting in hemiboreal forest ecosystem under summer drought
	Rebane S.; Jõgiste K.; Kiviste A.; Stanturf J.A.; Kangur A.; Metslaid M.
发表日期	2020
ISSN	0378-1127
卷号	472
英文摘要	Growth of CO2 concentration level has strong interactions with forests. Forests are able to sequester carbon (C) through photosynthesis and can help to mitigate the effects of climate warming, as well as to reduce the CO2 concentration in the atmosphere. Drought and other extreme weather conditions play a key role in ecosystem functioning and the C-cycle. The eddy covariance (EC) method can be used to better understand forest ecosystems CO2 exchange by directly measuring net carbon and water fluxes. In our study, EC results for measurement of fluxes between the atmosphere and forest canopy are reported for the study period from May to August 2018 in Järvselja, Estonia. Stand-replacing disturbance (clear-cutting) took place in April 2013. The young forest stand is dominated by Norway spruce (Picea abies) and birch (Betula spp.). Findings so far include (1) a C-budget for the study period that showed a slight C-sink status; (2) net ecosystem exchange (NEE) was −0.0084 µmol m−2 s−1 indicating C-uptake during the measurement period; (3) in May, June, July and August, NEE was −0.027, −0.015, 0.001 and 0.006 µmol m−2 s−1, respectively; (4) NEE fluxes are lower in drought conditions and are affected by temperature that averaged 15 °C. © 2020 Elsevier B.V.
关键词	Budget control Carbon Carbon dioxide Drought Forestry Plants (botany)CO2 concentration Drought conditions Ecosystem functioning Eddy covariance Extreme weather conditions Forest ecosystem Net ecosystem exchange Strong interaction Ecosystems atmosphere-biosphere interaction boreal forest carbon balance carbon flux carbon sequestration carbon sink clearcutting drought eddy covariance forest ecosystem net ecosystem exchange summer Carbon Dioxide Cost Control Drought Ecosystems Forestry Estonia Jarvselja Betula Picea abies
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/132745
推荐引用方式 GB/T 7714	Rebane S.,Jõgiste K.,Kiviste A.,et al. C-exchange and balance following clear-cutting in hemiboreal forest ecosystem under summer drought[J]. Forest Ecology and Management,2020,472.
APA	Rebane S.,Jõgiste K.,Kiviste A.,Stanturf J.A.,Kangur A.,&Metslaid M..(2020).C-exchange and balance following clear-cutting in hemiboreal forest ecosystem under summer drought.,472.
MLA	Rebane S.,et al."C-exchange and balance following clear-cutting in hemiboreal forest ecosystem under summer drought".472(2020).