Contributions of Climatic Factors to Interannual Variability of the Vegetation Index in Northern China Grasslands
文献类型：期刊论文
| 作者 | Zhao, Wei1; Hu, Zhongmin1 ; Guo, Qun2,3; Wu, Genan2,3; Chen, Ruru2,3; Li, Shenggong2,3
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| 刊名 | JOURNAL OF CLIMATE
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| 出版日期 | 2020 |
| 卷号 | 33期号:1页码:175-183 |
| 关键词 | Biosphere-atmosphere interaction Variational analysis Local effects Regional effects Vegetation-atmosphere interactions |
| ISSN号 | 0894-8755 |
| DOI | 10.1175/JCLI-D-18-0587.1 |
| 通讯作者 | Hu, Zhongmin(huzm@m.scnu.edu.cn) |
| 英文摘要 | Understanding the atmosphere-land surface interaction is crucial for clarifying the responses and feedbacks of terrestrial ecosystems to climate change. However, quantifying the effects of multiple climatic factors to vegetation activities is challenging. Using the geographical detector model (GDM), this study quantifies the relative contributions of climatic factors including precipitation, relative humidity, solar radiation, and air temperature to the interannual variation (IAV) of the normalized difference vegetation index (NDVI) in the northern grasslands of China during 2000 to 2016. The results show heterogeneous spatial patterns of determinant climatic factors on the IAV of NDVI. Precipitation and relative humidity jointly controlled the IAV of NDVI, illustrating more explanatory power than solar radiation and air temperature, and accounting for higher proportion of area as the determinant factor in the study region. It is noteworthy that relative humidity, a proxy of atmospheric aridity, is as important as precipitation for the IAV of NDVI. The contribution of climatic factors to the IAV of NDVI varied by vegetation type. Owing to the stronger explanatory power of climatic factors on NDVI variability in temperate grasslands, we conclude that climate variability may exert more influence on temperate grasslands than on alpine grasslands. Our study highlights the importance of the role of atmospheric aridity to vegetation activities in grasslands. We suggest focusing more on the differences between vegetation types when addressing the climate-vegetation relationships at a regional scale. |
| WOS关键词 | GROSS PRIMARY PRODUCTIVITY ; NET PRIMARY PRODUCTIVITY ; INNER-MONGOLIA ; TERRESTRIAL ECOSYSTEMS ; ATMOSPHERIC DEMAND ; PRECIPITATION ; TEMPERATURE ; DYNAMICS ; WATER ; NDVI |
| 资助项目 | National Key R&D Program of China[2016YFC0501603] ; National Postdoctoral Fund[2019M652935] ; National Natural Science Foundation of China[31570437] ; Startup Foundation for Talented Scholars in South China Normal University |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000501837300001 |
| 出版者 | AMER METEOROLOGICAL SOC |
| 资助机构 | National Key R&D Program of China ; National Postdoctoral Fund ; National Natural Science Foundation of China ; Startup Foundation for Talented Scholars in South China Normal University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130609]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Hu, Zhongmin |
| 作者单位 | 1.South China Normal Univ, Sch Geog, Guangzhou, Guangdong, Peoples R China 2.Chinese Acad Sci, Synth Res Ctr, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res,Chinese Ecosyst, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Wei,Hu, Zhongmin,Guo, Qun,et al. Contributions of Climatic Factors to Interannual Variability of the Vegetation Index in Northern China Grasslands[J]. JOURNAL OF CLIMATE,2020,33(1):175-183. |
| APA | Zhao, Wei,Hu, Zhongmin,Guo, Qun,Wu, Genan,Chen, Ruru,&Li, Shenggong.(2020).Contributions of Climatic Factors to Interannual Variability of the Vegetation Index in Northern China Grasslands.JOURNAL OF CLIMATE,33(1),175-183. |
| MLA | Zhao, Wei,et al."Contributions of Climatic Factors to Interannual Variability of the Vegetation Index in Northern China Grasslands".JOURNAL OF CLIMATE 33.1(2020):175-183. |
入库方式： OAI收割
来源：地理科学与资源研究所
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