Analysis of the variability of canopy resistance over a desert steppe site in Inner Mongolia, China
文献类型：期刊论文
| 作者 | Zhang Guo1; Zhou Guangsheng3; Chen Fei2; Wang Yu4 |
| 刊名 | ADVANCES IN ATMOSPHERIC SCIENCES
 |
| 出版日期 | 2014 |
| 卷号 | 31期号:3页码:681-692 |
| 关键词 | variability canopy resistance desert steppe site principal component regression |
| ISSN号 | 0256-1530 |
| DOI | 10.1007/s00376-013-3071-6 |
| 文献子类 | Article |
| 英文摘要 | Canopy resistance substantially affects the partitioning of available energy over vegetated surfaces. This study analyzed the variability of canopy resistance and associated driving environmental factors over a desert steppe site in Inner Mongolia, China, through the use of eddy-flux and meteorological data collected from 2008 to 2010. Distinct seasonal and interannual variabilities in canopy resistance were identified within those three years, and these variabilities were controlled primarily by precipitation. Strong interannual variability was found in vapor pressure deficit (VPD), similar to that of air temperature. Based on the principal component regression method, the analysis of the relative contribution of five major environmental factors [soil-water content (SWC), leaf-area index (LAI), photosynthetically active radiation (K (p)), VPD, and air temperature] to canopy resistance showed that the canopy-resistance variation was most responsive to SWC (with > 35% contribution), followed by LAI, especially for water-stressed soil conditions (> 20% influence), and VPD (consistently with an influence of approximately 20%). Canopy-resistance variations did not respond to K (p) due to the small interannual variability in K (p) during the three years. These analyses were used to develop a new exponential function of water stress for the widely used Jarvis scheme, which substantially improved the calculation of canopy resistance and latent heat fluxes, especially for moist and wet soils, and effectively reduced the high bias in evaporation estimated by the original Jarvis scheme. This study highlighted the important control of canopy resistance on plant evaporation and growth for the investigated desert steppe site with a relatively low LAI. |
| 学科主题 | Meteorology & Atmospheric Sciences |
| 出版地 | BEIJING |
| 电子版国际标准刊号 | 1861-9533 |
| WOS关键词 | LAND-SURFACE PARAMETERIZATION ; FAIR-WEATHER CBL ; STOMATAL CONDUCTANCE ; EDDY-COVARIANCE ; ENERGY-BALANCE ; PART I ; TEMPERATE GRASSLAND ; FLUX MEASUREMENTS ; MODEL ; EVAPOTRANSPIRATION |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000334181000018 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | State Key Development Program of Basic Research [2010CB951303] ; Strategic Priority Research Program-Climate Change: Carbon Budget and Related Issues of the Chinese Academy of Sciences [XDA05050408] ; NCAR |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27267]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Ctr Atmospher Res, Boulder, CO 80302 USA 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.Henan Univ Sci & Technol, Coll Forestry, Luoyang 471003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Guo,Zhou Guangsheng,Chen Fei,et al. Analysis of the variability of canopy resistance over a desert steppe site in Inner Mongolia, China[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2014,31(3):681-692. |
| APA | Zhang Guo,Zhou Guangsheng,Chen Fei,&Wang Yu.(2014).Analysis of the variability of canopy resistance over a desert steppe site in Inner Mongolia, China.ADVANCES IN ATMOSPHERIC SCIENCES,31(3),681-692. |
| MLA | Zhang Guo,et al."Analysis of the variability of canopy resistance over a desert steppe site in Inner Mongolia, China".ADVANCES IN ATMOSPHERIC SCIENCES 31.3(2014):681-692. |
入库方式： OAI收割
来源：植物研究所
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