Effects of spatial variability on estimation of evapotranspiration in the continental river basin
文献类型：期刊论文
| 作者 | Zhao ; CY ; Wang ; YC ; Hu ; SJ ; Li ; Y |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2004 |
| 卷号 | 56期号:2页码:373-382 |
| 关键词 | HYDRAULIC CONDUCTIVITY GROUNDWATER RECHARGE UNSATURATED SOILS REGIONAL-SCALE SURFACES MODEL |
| ISSN号 | 0140-1963 |
| 通讯作者 | Zhao, CY, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang, Peoples R China |
| 中文摘要 | Water and energy balance models were developed at the local and basin scale by aggregating a HYDRUS Model across scales in a topographic framework. A spatially distributed approach was followed to aggregate the HYDRUS Model to basin scale. The effects of spatial variability on the estimation of evapotranspiration at basin scale are emphatically discussed. In the present work the main emphasis was focused on the estimation of the spatial variability of both evapotranspiration and the calculation of statistical parameters of soil water storage from local scale to basin scale. Our results illustrate that the changes of the local and area-averaged potential evapotranspiration (ETp), actual evapotranspiration (ET) show a strong seasonal trend where the mean and standard deviation (STD) approximately fit the two-harmonics of Fourier series. Moreover, ETp and ET are random variables which follow the normal distribution with mean and deviation changing with season. A sensitivity analysis of the results shows that to a reasonable degree, the incorporated model can be used to determine the relationship between the actual area-averaged evapotranspiration and the main controlling factors for both bare soil and vegetated surfaces. (C) 2003 Elsevier Science Ltd. All rights reserved. |
| 学科主题 | 水文地理学及水资源 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/10568]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Zhao,CY,Wang,et al. Effects of spatial variability on estimation of evapotranspiration in the continental river basin[J]. JOURNAL OF ARID ENVIRONMENTS,2004,56(2):373-382. |
| APA | Zhao.,CY.,Wang.,YC.,Hu.,...&Y.(2004).Effects of spatial variability on estimation of evapotranspiration in the continental river basin.JOURNAL OF ARID ENVIRONMENTS,56(2),373-382. |
| MLA | Zhao,et al."Effects of spatial variability on estimation of evapotranspiration in the continental river basin".JOURNAL OF ARID ENVIRONMENTS 56.2(2004):373-382. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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