Assessing phenological change and climatic control of alpine grasslands in the Tibetan Plateau with MODIS time series
文献类型：期刊论文
| 作者 | Wang, Cuizhen1; Guo, Huadong1; Zhang, Li1; Liu, Shuangyu1; Qiu, Yubao1; Sun, Zhongchang1 |
| 刊名 | INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
 |
| 出版日期 | 2015 |
| 卷号 | 59期号:1页码:28-32 |
| 关键词 | Tibetan Plateau Alpine grassland MODIS time series Climate change |
| 通讯作者 | Wang, CZ (reprint author), Univ S Carolina, Dept Geog, Columbia, SC 29208 USA. |
| 英文摘要 | The Tibetan Plateau, a unique cold and dry region recognized as the Earth's third pole, is primarily composed of alpine grasslands (> 60 %). While a warming climate in the plateau is being recorded, phenology of alpine grasslands and its climatic dependencies are less investigated. This study tests the feasibility of the frequently observed Moderate Resolution Imaging Spectroradiometer (MODIS) time series (500 m, 8 days) in examining alpine phenology in the plateau. A set of phenological metrics are extracted from the MODIS Normalized Difference Vegetation Index (NDVI) series in each year, 2000-2010. A nonparametric Mann-Kendall trend analysis is performed to find the trends of these phenological metrics, which are then linked to monthly climatic records in the growing season. Opposite trends of phenological change are observed between the east and west of the plateau, with delayed start of season, peak date, and end of season in the west and advanced phenophases in the east. The correlation analysis indicates that precipitation, with a decreasing trend in the west and increasing trend in the east, may serve as the primary driver of the onset and peak dates of greenness. Temperature increases all over the plateau. While the delay of the end of season in the west could be related to higher late-season temperature, its advance in the east needs further investigation in this unique cold region. This study demonstrates that frequent satellite observations are able to extract phenological features of alpine grasslands and to provide spatiotemporally detailed base information for long-term monitoring on the plateau under rapid climate change. |
| 研究领域[WOS] | Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000346637800002 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38529]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.[Wang, Cuizhen] Univ S Carolina, Dept Geog, Columbia, SC 29208 USA 2.[Guo, Huadong 3.Zhang, Li 4.Liu, Shuangyu 5.Qiu, Yubao 6.Sun, Zhongchang] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Cuizhen,Guo, Huadong,Zhang, Li,et al. Assessing phenological change and climatic control of alpine grasslands in the Tibetan Plateau with MODIS time series[J]. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,2015,59(1):28-32. |
| APA | Wang, Cuizhen,Guo, Huadong,Zhang, Li,Liu, Shuangyu,Qiu, Yubao,&Sun, Zhongchang.(2015).Assessing phenological change and climatic control of alpine grasslands in the Tibetan Plateau with MODIS time series.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,59(1),28-32. |
| MLA | Wang, Cuizhen,et al."Assessing phenological change and climatic control of alpine grasslands in the Tibetan Plateau with MODIS time series".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 59.1(2015):28-32. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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