Influence of land use patterns on evapotranspiration and its components in a temperate grassland ecosystem
文献类型：期刊论文
| 作者 | Li, Yuzhe1,2; Fan, Jiangwen1; Hu, Zhongmin3; Shao, Quanqin1; Zhang, Liangxia1,2; Yu, Hailing1,2 |
| 刊名 | Advances in meteorology
 |
| 出版日期 | 2015 |
| 页码 | 12 |
| ISSN号 | 1687-9309 |
| DOI | 10.1155/2015/452603 |
| 通讯作者 | Fan, jiangwen(fanjw@igsnrr.ac.cn) |
| 英文摘要 | To better understand variation in response of components of ecosystem evapotranspiration (et) to grassland use differences, we selected three typical land use patterns in a temperate steppe area: grazed steppe (g), steppe with grazers excluded (ge), and steppe cultivated to cropland (c). et was divided into its components evaporation (e) and canopy transpiration (t) using herbicide and a chamber attached to a portable infrared gas analyzer (li-6400). the results indicated that daily water consumption by et in g was 3.30 kgm(-2) d(-1); compared with g, et increased significantly in ge at 13.4% and showed a trend of 6.73% increase in c. daily water consumption by e increased 24.3% in ge relative to g, and c showed 20.2% more than ge. at 0.46, e/et in c was significantly higher than g at 0.35. air temperature and the vapor pressure deficit were closely correlated with variation in diurnal et, e, and t. the leaf area index (lai) was also positively correlated with daily et and e varied among grassland use patterns and explained variation in e/et (81%). thus, variation in lai strongly influences the overall magnitude of ecosystem et and the composition of its components under different grassland use patterns. |
| WOS关键词 | WATER-USE EFFICIENCY ; RAIN-USE EFFICIENCY ; CARBON-DIOXIDE EXCHANGE ; CHIHUAHUAN DESERT ; SEMIARID STEPPE ; ENERGY-BALANCE ; SOIL ; PRECIPITATION ; VEGETATION ; RESPONSES |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000356711700001 |
| 出版者 | HINDAWI PUBLISHING CORPORATION |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376464 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Fan, Jiangwen |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Synth Res Ctr Chinese Ecosyst Res Network, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yuzhe,Fan, Jiangwen,Hu, Zhongmin,et al. Influence of land use patterns on evapotranspiration and its components in a temperate grassland ecosystem[J]. Advances in meteorology,2015:12. |
| APA | Li, Yuzhe,Fan, Jiangwen,Hu, Zhongmin,Shao, Quanqin,Zhang, Liangxia,&Yu, Hailing.(2015).Influence of land use patterns on evapotranspiration and its components in a temperate grassland ecosystem.Advances in meteorology,12. |
| MLA | Li, Yuzhe,et al."Influence of land use patterns on evapotranspiration and its components in a temperate grassland ecosystem".Advances in meteorology (2015):12. |
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来源：中国科学院大学
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