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Changes in the Carbon and Water Fluxes of Subtropical Forest Ecosystems in South-Western China Related to Drought
Zhou, Lei1,2; Wang, Shaoqiang2; Chi, Yonggang1,2; Ju, Weimin3; Huang, Kun4; Mickler, Robert A.5; Wang, Miaomiao2; Yu, Quanzhou6
2018-07-01
Source PublicationWATER
ISSN2073-4441
Volume10Issue:7Pages:17
Corresponding AuthorZhou, Lei(zhoulei@zjnu.cn) ; Wang, Shaoqiang(sqwang@igsnrr.ac.cn)
AbstractDrought impacts carbon and water fluxes of terrestrial ecosystems, which are strongly coupled. However, the magnitudes of response of carbon and water fluxes to drought are dependent on many processes, which are more complex than previously expected. Southern China experienced regional climatic perturbation events in the past decade and a two-year drought in 2009-2010. We used a terrestrial ecosystem model coupled with remotely sensed observations and metrological data to simulate the variations of net primary productivity (NPP), evapotranspiration (ET), and water-use efficiency (WUE) (i.e., NPP/ET) in south-western China during the period 2001-2010. Using the standard precipitation index (SPI) classifying different drought stresses, we also quantified the effect of drought on the ecosystem by comparing changes in modelled estimates of monthly WUE, NPP and ET under normal (i.e., baseline) and drought conditions (i.e., 2009 and 2010). The results indicated that NPP and ET showed synchronized declines in drought periods, with time-lag effects. Furthermore, drought-induced NPP decline was larger than ET reduction. An increasing trend in WUE from the moderate to extreme drought classes occurred not only in baseline conditions but also in drought conditions. Especially in the extreme drought period (January, 2010), WUE for the forest ecosystem typically showed a positive response to drought, indicating a drought-resilient forest ecosystem. Our study has important implications for understanding climate extreme effects on the carbon and water cycle of the forest ecosystem.
Keywordclimate extremes drought productivity evapotranspiration water-use efficiency forest ecosystem resilience
DOI10.3390/w10070821
WOS KeywordNET PRIMARY PRODUCTIVITY ; BOREAL ASPEN FOREST ; USE EFFICIENCY ; TERRESTRIAL ECOSYSTEMS ; CLIMATE EXTREMES ; TREE MORTALITY ; HYDRAULIC REDISTRIBUTION ; TROPICAL FORESTS ; PROCESS MODEL ; GREAT-PLAINS
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China from MOST[2016YFB0501501] ; National Key Research and Development Program of China from MOST[2017YFB0504000] ; National Key Research and Development Program of China from MOST[2017YFC0503803] ; National Natural Science Foundation of China[41401110] ; National Natural Science Foundation of China[31400393] ; Open Fund of State Key Laboratory of Remote Sensing Science[OFSLRSS201405] ; State key laboratory of Resources and Environmental Information System
Funding OrganizationNational Key Research and Development Program of China from MOST ; National Natural Science Foundation of China ; Open Fund of State Key Laboratory of Remote Sensing Science ; State key laboratory of Resources and Environmental Information System
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000442579700004
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54317
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhou, Lei; Wang, Shaoqiang
Affiliation1.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China
2.Inst Geog Sci & Nat Resource Res, Key Lab Ecosyst Network Observ & Modeling, Beijing 100101, Peoples R China
3.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 210093, Jiangsu, Peoples R China
4.East China Normal Univ, Sch Ecol & Environm Sci, Res Ctr Global Change & Ecol Forecasting, Shanghai 200062, Peoples R China
5.North Carolina State Univ, Dept Forestry & Environm Resources, Raleigh, NC 27613 USA
6.Liaocheng Univ, Sch Environm & Planning, Liaocheng 252000, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Lei,Wang, Shaoqiang,Chi, Yonggang,et al. Changes in the Carbon and Water Fluxes of Subtropical Forest Ecosystems in South-Western China Related to Drought[J]. WATER,2018,10(7):17.
APA Zhou, Lei.,Wang, Shaoqiang.,Chi, Yonggang.,Ju, Weimin.,Huang, Kun.,...&Yu, Quanzhou.(2018).Changes in the Carbon and Water Fluxes of Subtropical Forest Ecosystems in South-Western China Related to Drought.WATER,10(7),17.
MLA Zhou, Lei,et al."Changes in the Carbon and Water Fluxes of Subtropical Forest Ecosystems in South-Western China Related to Drought".WATER 10.7(2018):17.
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