Environmental controls of evapotranspiration in a mixed plantation in North China
文献类型:期刊论文
作者 | Tong, Xiaojuan1; Zhang, Jinsong2; Meng, Ping2; Li, Jun3![]() |
刊名 | INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
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出版日期 | 2017-02-01 |
卷号 | 61期号:2页码:227-238 |
关键词 | Evapotranspiration Mixed plantation Eddy covariance Priestley-Taylor coefficient Decoupling factor Canopy conductance |
ISSN号 | 0020-7128 |
DOI | 10.1007/s00484-016-1205-0 |
通讯作者 | Tong, Xiaojuan(tongxj@bjfu.edu.cn) |
英文摘要 | The mixed plantation plays an important role in the water cycle in the hilly area of North China. To evaluate the effect of afforestation on the water balance in this region, the temporal variation of evapotranspiration (ET) and environmental controls were investigated based on the eddy flux measurement of water vapor in a 31-year-old mixed plantation from 2006 to 2010. During 5 years, annual ET ranged from 513 to 680 mm, with an average of 579 mm. Growing season ET accounted for 72-82 % of annual ET during the 5-year period and its interannual variation was determined by the number of rainy days. In the non-growing and growing seasons, monthly ET was primarily dependent on monthly mean soil water content and monthly mean net radiation, respectively. Annual mean Priestley-Taylor coefficient (alpha) was 0.64, and the decoupling factor (Omega) was 0.48. High values of alpha and Omega implied that ET was energy limited in the growing seasons of 2006-2010. The mean annual ratio of ET to precipitation (ET/P) was 1.10. The density of the mixed plantation was around 50 % higher than the optimal value determined by local water capacity, leading to a large ET/P ratio. The dense plantation needs to be thinned to prevent excessive water loss in the hilly area of North China. |
WOS关键词 | ENERGY-BALANCE CLOSURE ; WATER-VAPOR EXCHANGE ; TEMPERATE DECIDUOUS FOREST ; ECOSYSTEM CARBON EXCHANGE ; BOREAL FOREST ; USE EFFICIENCY ; HEAT-FLUX ; DIOXIDE ; STANDS ; EVAPORATION |
资助项目 | National Natural Science Foundation of China[31570617] ; National Natural Science Foundation of China[31100322] ; Special Public Sector Research[GYHY20110400904] ; Fundamental Research Funds for the Central Universities[YX2011-19] |
WOS研究方向 | Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology |
语种 | 英语 |
WOS记录号 | WOS:000393669800003 |
出版者 | SPRINGER |
资助机构 | National Natural Science Foundation of China ; Special Public Sector Research ; Fundamental Research Funds for the Central Universities |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/64905] ![]() |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Tong, Xiaojuan |
作者单位 | 1.Beijing Forestry Univ, Coll Forestry, Beijing 100083, Peoples R China 2.Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, State Forestry Adm, Beijing 100091, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Tong, Xiaojuan,Zhang, Jinsong,Meng, Ping,et al. Environmental controls of evapotranspiration in a mixed plantation in North China[J]. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,2017,61(2):227-238. |
APA | Tong, Xiaojuan,Zhang, Jinsong,Meng, Ping,Li, Jun,&Zheng, Ning.(2017).Environmental controls of evapotranspiration in a mixed plantation in North China.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,61(2),227-238. |
MLA | Tong, Xiaojuan,et al."Environmental controls of evapotranspiration in a mixed plantation in North China".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 61.2(2017):227-238. |
入库方式: OAI收割
来源:地理科学与资源研究所
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