Seasonal and interannual variation in water vapor and energy exchange over a typical steppe in Inner Mongolia, China
文献类型：期刊论文
| 作者 | Hao, Yanbin; Wang, Yanfen; Huang, Xiangzhong; Cui, Xiaoyong; Zhou, Xiaoqi; Wang, Shiping; Niu, Haishan; Jiang, Gaoming |
| 刊名 | agricultural and forest meteorology
 |
| 出版日期 | 2007-09-11 |
| 卷号 | 146期号:1-2页码:57-69 |
| 关键词 | Eddy covariance evapotranspiration energy exchange decoupling coefficient soil water content typical steppe |
| 合作状况 | 其它 |
| 中文摘要 | in this study, we conducted eddy covariance (ec) measurements of water vapor exchange over a typical steppe in a semi-arid area of the inner mongolia plateau, china. measurement sites were located within a 25-year-old enclosure with a relatively low leaf area index (similar to 1. 5 m(2) m(-2)) and dominated by leymus chinensis. energy balance closure was (h + le) = 17.09 + 0.69 x (rn - g) (w/m(2); r(2) = 0.95, n = 6596). precipitation during the two growing seasons of the study period was similar to the long-term average. the peak evapotranspiration in 2004 was 4 mm d(-1), and 3.5 mm d(-1) in 2003. the maximum latent heat flux was higher than the sensible heat flux, and the sensible heat flux dominated the energy budget at midday during the entire growing season in 2003; latent heat flux was the main consumption component for net radiation during the 2004 growing season. during periods of frozen soil in 2003 and 2004, the sensible heat flux was the primary consumption component for net radiation. the soil heat flux component was similar in 2003 and 2004. the decoupling coefficient (between 0.5 and 0.1) indicates that evapotranspiration was strongly controlled by saturation water vapor pressure deficit (vpd) in this grassland. the results of this research suggest that energy exchange and evapotranspiration were controlled by the phenology of the vegetation and soil water content. in addition, the amount and frequency of rainfall significantly affect energy exchange and evapotranspiration upon the inner mongolia plateau. (c) 2007 published by elsevier b.v. |
| 英文摘要 | in this study, we conducted eddy covariance (ec) measurements of water vapor exchange over a typical steppe in a semi-arid area of the inner mongolia plateau, china. measurement sites were located within a 25-year-old enclosure with a relatively low leaf area index (similar to 1. 5 m(2) m(-2)) and dominated by leymus chinensis. energy balance closure was (h + le) = 17.09 + 0.69 x (rn - g) (w/m(2); r(2) = 0.95, n = 6596). precipitation during the two growing seasons of the study period was similar to the long-term average. the peak evapotranspiration in 2004 was 4 mm d(-1), and 3.5 mm d(-1) in 2003. the maximum latent heat flux was higher than the sensible heat flux, and the sensible heat flux dominated the energy budget at midday during the entire growing season in 2003; latent heat flux was the main consumption component for net radiation during the 2004 growing season. during periods of frozen soil in 2003 and 2004, the sensible heat flux was the primary consumption component for net radiation. the soil heat flux component was similar in 2003 and 2004. the decoupling coefficient (between 0.5 and 0.1) indicates that evapotranspiration was strongly controlled by saturation water vapor pressure deficit (vpd) in this grassland. the results of this research suggest that energy exchange and evapotranspiration were controlled by the phenology of the vegetation and soil water content. in addition, the amount and frequency of rainfall significantly affect energy exchange and evapotranspiration upon the inner mongolia plateau. (c) 2007 published by elsevier b.v. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 学科主题 | 林业 |
| 类目[WOS] | agronomy ; forestry ; meteorology & atmospheric sciences |
| 研究领域[WOS] | agriculture ; forestry ; meteorology & atmospheric sciences |
| 关键词[WOS] | carbon-dioxide exchange ; net ecosystem exchange ; temperate grassland ; prairie ; atmosphere ; climate ; fluxes ; forest ; variability ; evaporation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249481900005 |
| 公开日期 | 2009-12-07 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1254]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 2.Grad Univ, Chinese Acad Sci, Dept Biol, Beijing 100049, Peoples R China 3.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810008, Peoples R China 4.Grad Univ, Chinese Acad Sci, Dept Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Yanbin,Wang, Yanfen,Huang, Xiangzhong,et al. Seasonal and interannual variation in water vapor and energy exchange over a typical steppe in Inner Mongolia, China[J]. agricultural and forest meteorology,2007,146(1-2):57-69. |
| APA | Hao, Yanbin.,Wang, Yanfen.,Huang, Xiangzhong.,Cui, Xiaoyong.,Zhou, Xiaoqi.,...&Jiang, Gaoming.(2007).Seasonal and interannual variation in water vapor and energy exchange over a typical steppe in Inner Mongolia, China.agricultural and forest meteorology,146(1-2),57-69. |
| MLA | Hao, Yanbin,et al."Seasonal and interannual variation in water vapor and energy exchange over a typical steppe in Inner Mongolia, China".agricultural and forest meteorology 146.1-2(2007):57-69. |
入库方式： OAI收割
来源：西北高原生物研究所
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