Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3724/SP.J.1227.2012.00105 |
Spatio-temporal pattern and changes of evapotranspiration in arid Central Asia and Xinjiang of China | |
Chen, Xi1![]() | |
通讯作者 | Chen, Xi |
来源期刊 | JOURNAL OF ARID LAND
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ISSN | 1674-6767 |
出版年 | 2012 |
卷号 | 4期号:1页码:105-112 |
英文摘要 | Accurate inversion of land surface evapotranspiration (ET) in arid areas is of great significance for understanding global eco-hydrological process and exploring the spatio-temporal variation and ecological response of water resources. It is also important in the functional evaluation of regional water cycle and water balance, as well as the rational allocation and management of water resources. This study, based on model validation analysis at varied scales in five Central Asian countries and China’s Xinjiang, developed an appropriate approach for ET inversion in arid lands. The actual ET during growing seasons of the study area was defined, and the changes in water participating in evaporation in regional water cycle were then educed. The results show the simulation error of SEBS (Surface Energy Balance System) model under cloud amount consideration was 1.34% at 30-m spatial scale, 2.75% at 1-km spatial scale and 6.37% at 4-km spatial scale. ET inversion for 1980-2007 applying SEBS model in the study area indicates: (1) the evaporation depth (May-September) by land types descends in the order of waters (660.24 mm) > cultivated land (464.66 mm) > woodland (388.44 mm) > urbanized land (168.16 mm) > grassland (160.48 mm) > unused land (83.08 mm); and (2) ET during the 2005 growing season in Xinjiang and Central Asia was 2,168.68x10(8) m(3) (with an evaporation/precipitation ratio of 1.05) and 9,741.03x10(8) m(3) (with an evaporation/precipitation ratio of 1.4), respectively. The results unveiled the spatio-temporal variation rules of ET process in arid areas, providing a reference for further research on the water cycle and water balance in similar arid regions. |
英文关键词 | Evapotranspiration (ET) arid areas SEBS model remote sensing Central Asia Xinjiang of China |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA ; Kazakhstan |
收录类别 | SCI-E |
WOS记录号 | WOS:000300387600013 |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 中国科学院新疆生态与地理研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173317 |
作者单位 | 1.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Sino US Int Ctr Ecol Arid Land, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; 2.Univ Calif Riverside, Ecol Complex & Modeling Lab, Dept Bot & Plant Sci, Riverside, CA 92521 USA; 3.Univ Jinan, Jinan 250022, Peoples R China; 4.Minist Agr Kazakhstan, UUUspanov Kazakh Res Inst Soil Sci & Agrichem, Alma Ata 050060, Kazakhstan |
推荐引用方式 GB/T 7714 | Chen, Xi,Li, BaiLian,Li, Qin,et al. Spatio-temporal pattern and changes of evapotranspiration in arid Central Asia and Xinjiang of China[J]. 中国科学院新疆生态与地理研究所,2012,4(1):105-112. |
APA | Chen, Xi,Li, BaiLian,Li, Qin,Li, Junli,&Abdulla, Saparnov.(2012).Spatio-temporal pattern and changes of evapotranspiration in arid Central Asia and Xinjiang of China.JOURNAL OF ARID LAND,4(1),105-112. |
MLA | Chen, Xi,et al."Spatio-temporal pattern and changes of evapotranspiration in arid Central Asia and Xinjiang of China".JOURNAL OF ARID LAND 4.1(2012):105-112. |
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