Seasonal dynamics of water use efficiency of typical forest and grassland ecosystems in China
文献类型：期刊论文
| 作者 | Zhu, Xianjin1,2; Yu, Guirui1; Wang, Qiufeng1; Hu, Zhongmin1; Han, Shijie3; Yan, Junhua4; Wang, Yanfen2; Zhao, Liang5 |
| 刊名 | journal of forest research
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 19期号:1页码:70-76 |
| 关键词 | Ecosystems in China Eddy covariance Seasonal dynamics Water use efficiency |
| ISSN号 | 1341-6979 |
| 中文摘要 | we selected four sites of chinaflux representing four major ecosystem types in china-changbaishan temperate broad-leaved korean pine mixed forest (cbs), dinghushan subtropical evergreen broadleaved forest (dhs), inner mongolia temperate steppe (nm), and haibei alpine shrub-meadow (hbgc)-to study the seasonal dynamics of ecosystem water use efficiency (wue = gpp/et, where gpp is gross primary productivity and et is evapotranspiration) and factors affecting it. our seasonal dynamics results indicated single-peak variation of wue in cbs, nm, and hbgc, which were affected by air temperature (ta) and leaf area index (lai), through their effects on the partitioning of evapotranspiration (et) into transpiration (t) (i.e., t/et). in dhs, wue was higher at the beginning and the end of the year, and minimum in summer. ta and soil water content affected the seasonal dynamics of wue through their effects on gpp/t. our results indicate that seasonal dynamics of wue were different because factors affecting the seasonal dynamics and their mechanism were different among the key ecosystems. |
| 英文摘要 | we selected four sites of chinaflux representing four major ecosystem types in china-changbaishan temperate broad-leaved korean pine mixed forest (cbs), dinghushan subtropical evergreen broadleaved forest (dhs), inner mongolia temperate steppe (nm), and haibei alpine shrub-meadow (hbgc)-to study the seasonal dynamics of ecosystem water use efficiency (wue = gpp/et, where gpp is gross primary productivity and et is evapotranspiration) and factors affecting it. our seasonal dynamics results indicated single-peak variation of wue in cbs, nm, and hbgc, which were affected by air temperature (ta) and leaf area index (lai), through their effects on the partitioning of evapotranspiration (et) into transpiration (t) (i.e., t/et). in dhs, wue was higher at the beginning and the end of the year, and minimum in summer. ta and soil water content affected the seasonal dynamics of wue through their effects on gpp/t. our results indicate that seasonal dynamics of wue were different because factors affecting the seasonal dynamics and their mechanism were different among the key ecosystems. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | forestry |
| 研究领域[WOS] | forestry |
| 关键词[WOS] | carbon ; exchange ; fluxes ; co2 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000329404600008 |
| 公开日期 | 2014-12-19 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/4260]  |
| 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 Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Synth Res Ctr,CERN, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Xianjin,Yu, Guirui,Wang, Qiufeng,et al. Seasonal dynamics of water use efficiency of typical forest and grassland ecosystems in China[J]. journal of forest research,2014,19(1):70-76. |
| APA | Zhu, Xianjin.,Yu, Guirui.,Wang, Qiufeng.,Hu, Zhongmin.,Han, Shijie.,...&Zhao, Liang.(2014).Seasonal dynamics of water use efficiency of typical forest and grassland ecosystems in China.journal of forest research,19(1),70-76. |
| MLA | Zhu, Xianjin,et al."Seasonal dynamics of water use efficiency of typical forest and grassland ecosystems in China".journal of forest research 19.1(2014):70-76. |
入库方式： OAI收割
来源：西北高原生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。