Study on vegetation ecological water requirement in Ejina Oasis
文献类型：期刊论文
| 作者 | Zhao WenZhi; Chang XueLi; He ZhiBin; Zhang ZhiHui |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2007 |
| 卷号 | 50期号:1页码:121-129 |
| 关键词 | Ejina Oasis NDVI productivity pattern vegetation ecological water requirement |
| ISSN号 | 1006-9313 |
| DOI | 10.1007/s11430-007-2035-z |
| 通讯作者 | Zhao WenZhi(zhaowzh@lzb.ac.cn) |
| 英文摘要 | The Ecological Water Requirement (EWR) of desert oasis is the amount of water required to maintain a normal growth of vegetation in the special ecosystems. In this study EWR of the Ejina desert oasis is estimated through the relational equation between normalized difference vegetation index (NDVI), productivity and transpiration coefficient, which was established by a combination of the RS, GIS, GPS techniques with the field measurements of productivity. The results show that about 1.53x10(8) m(3) water would be needed to maintain the present state of the Ejina Oasis, and the ecological water requirement would amount to 3.49x10(8) m(3) if the existing vegetation was restored to the highest productivity level at present. Considering the domestic water requirement, river delivery loss, oasis vegetation water, consumption, farmland water demand, precipitation recharge, etc., the draw-off discharge of the Helhe River (at Longxin Mount) should be 1.93x10(8) - 2.23x10(8) m(3) to maintain the present state of the Ejina Oasis, and 4.28x10(8) - 5.17x10(8) m(3) to make the existing vegetation be restored to the highest productivity level at present. |
| 收录类别 | SCI |
| WOS关键词 | RIVER ; CHINA |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000244621300013 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555984 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao WenZhi |
| 作者单位 | 1.Chinese Acad Sci, Lab Watershed Hydrol & Ecol, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Ecosyst Res Network, Linze Inland River Basin Comprehens Res Stn, Lanzhou 730000, Peoples R China 3.Ludong Univ, Geog & Resource Management Coll, Yantai 264025, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao WenZhi,Chang XueLi,He ZhiBin,et al. Study on vegetation ecological water requirement in Ejina Oasis[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2007,50(1):121-129. |
| APA | Zhao WenZhi,Chang XueLi,He ZhiBin,&Zhang ZhiHui.(2007).Study on vegetation ecological water requirement in Ejina Oasis.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,50(1),121-129. |
| MLA | Zhao WenZhi,et al."Study on vegetation ecological water requirement in Ejina Oasis".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 50.1(2007):121-129. |
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来源：寒区旱区环境与工程研究所
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