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Quantitative assessment of the role of doubled CO2 and associated climate change in the vegetation dynamics and hydrological cycle in the Sino-Mongolia arid and semi-arid region
Qiu, Linjing1,2; Liu, Xiaodong2,3; Hao, Yaqi4
2017-03-01
Source PublicationSTOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
Volume31Issue:3Pages:785-797
SubtypeArticle
AbstractThe effects of elevated CO2 on vegetation dynamics and the hydrological cycle have been widely studied at the site level. However, quantitative assessments of these effects on a regional scale remain a challenge. We conducted numerical simulations to predict the possible responses of vegetation and the hydrological cycle in the Sino-Mongolia arid and semi-arid region (SMASR) to doubled CO2 and its associated climate change using the Community Earth System Model in tandem with a dynamic global vegetation model. The results showed that the doubled CO2 had a positive effect on the leaf area index of the SMASR, but its associated climate change exerted a negative effect in most parts of the SMASR. Although climate change had a weak negative effect on ground runoff at the regional scale, a 4.74 mm increase was predicted under the combined effect of doubled CO2 and climate change, largely due to the positive effect of doubled CO2. Spatially, the evident increase in ground runoff, which primarily occurred in the southeastern part of the SMASR, resulted from decreased ground evaporation and canopy transpiration under the doubled CO2 condition. A negative effect was predicted in the central west as a result of increased temperature and a changed precipitation under doubled CO2. These findings implied that the condition of water resources would be improved slightly under a doubled CO2 condition, whereas there would be a larger spatial heterogeneity in relation to different sensitivities of vegetation and hydrological variables to doubled CO2 and associated climate change.
KeywordCommunity Land Model Numerical Simulation Evaporation Runoff
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s00477-015-1205-3
WOS KeywordELEVATED CO2 ; CARBON-DIOXIDE ; STOMATAL CONDUCTANCE ; INNER-MONGOLIA ; INTERANNUAL VARIATION ; ATMOSPHERIC CO2 ; FUTURE CLIMATE ; GLOBAL-SCALE ; RIVER-BASIN ; SOIL-WATER
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Mathematics ; Water Resources
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences ; Statistics & Probability ; Water Resources
WOS IDWOS:000398003000012
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5508
Collection古环境研究室
Affiliation1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, 99 Yanxiang Rd, Xian 710049, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Northwest Univ, Coll Life Sci, Xian 710069, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Qiu, Linjing,Liu, Xiaodong,Hao, Yaqi. Quantitative assessment of the role of doubled CO2 and associated climate change in the vegetation dynamics and hydrological cycle in the Sino-Mongolia arid and semi-arid region[J]. STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,2017,31(3):785-797.
APA Qiu, Linjing,Liu, Xiaodong,&Hao, Yaqi.(2017).Quantitative assessment of the role of doubled CO2 and associated climate change in the vegetation dynamics and hydrological cycle in the Sino-Mongolia arid and semi-arid region.STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,31(3),785-797.
MLA Qiu, Linjing,et al."Quantitative assessment of the role of doubled CO2 and associated climate change in the vegetation dynamics and hydrological cycle in the Sino-Mongolia arid and semi-arid region".STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT 31.3(2017):785-797.
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