Estimation of tree transpiration and response of tree conductance to meteorological variables in desert-oasis system of Northwest China
文献类型：期刊论文
| 作者 | Chen, RS; Kang, E; Zhang, ZH; Zhao, WZ; Song, KC; Zhang, JS; Lan, YC |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 47页码:9-20 |
| 关键词 | sapflow tree conductance leaf area transpiration soil water content climatic variable |
| ISSN号 | 1006-9313 |
| DOI | 10.1360/04zd0002 |
| 通讯作者 | Chen, RS(crs2008@ns.lzb.ac.cn) |
| 英文摘要 | Transpirations of three dominated tree species, namely Mongol Scotch Pine (Pinus sylvestris var. mongolica Litvin), White elm (Ulmus pumila) and Gansu Poplar (Populus gansuensis Wang et Yang) in oasis shelter forest (Linze site) and of two dominated tree species, namely Euphrates Poplar (Populus euphratica Oliv.) and Russia olive (Elaeagnus angustifolia Linn.) in lowland desert (Erjinaqi site) have been estimated using measured sapflow in summer, autumn and winter, 2002 and in spring, 2003. An ENVIS System was used for each site to measure microclimate variables, soil moisture and sapflow every half an hour, and the study time scale is one day. In the 104 days of observation during the growing season at the Linze site, the average daily sapflow of Gansu Poplar is 9.93 L.d(-1), and the average transpiration per unit leaf area is 1.99 mm.d(-1). For White elm tree, the daily average sapflow is 4.08 L.d(-1), while the daily average transpiration per unit leaf area is 0.49 mm.d(-1). The values for Mongol Scotch Pine are 3.91 L.d(-1) and 0.25 mm.d(-1), respectively. In the total 73 days of observation during the growing season at the Erjinaqi site, the daily average sapflows of Russia olive and Euphrates Poplar are 12.1 and 20.97 L . d(-1), respectively, and the average transpirations per unit leaf area are 0.22 and 0.31 mm.d(-1), respectively. In the observation period of the growing season, tree conductances of Mongol Scotch Pine, White elm, Gansu Poplar or Russia olive show an exponential relationship with the daily average air temperature or vapour pressure deficit, but the relationship is not so obvious between tree conductance and global radiation. The transpiration process of each tree species is affected by all the observed four environmental variables. The response of tree conductance to different climatic factors changes with tree species. The effect of the same factor to the same tree species is also variable in different growing stages. The sapflow of every tree species is relatively large in later spring to early summer, and low in summer, and then reaches its largest value in later September. In the mid-November, the sapflow is relatively large, especially the deciduous tree species. This may be characteristic of the tree species in Arid Regions of Northwest China. |
| 收录类别 | SCI |
| WOS关键词 | CANOPY CONDUCTANCE ; GROWING-SEASON ; PICEA-ABIES ; WEST CHINA ; WATER ; FOREST ; ENVIRONMENT ; STANDS ; PINE |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000224381400002 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556994 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Chen, RS |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, RS,Kang, E,Zhang, ZH,et al. Estimation of tree transpiration and response of tree conductance to meteorological variables in desert-oasis system of Northwest China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2004,47:9-20. |
| APA | Chen, RS.,Kang, E.,Zhang, ZH.,Zhao, WZ.,Song, KC.,...&Lan, YC.(2004).Estimation of tree transpiration and response of tree conductance to meteorological variables in desert-oasis system of Northwest China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,47,9-20. |
| MLA | Chen, RS,et al."Estimation of tree transpiration and response of tree conductance to meteorological variables in desert-oasis system of Northwest China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 47(2004):9-20. |
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来源：寒区旱区环境与工程研究所
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