| 北纬地区温度和卫星监测的植被活动节律变化的比较分析(英文) |
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| 引用本文： | 马廷,周成虎,裴韬,谢一春.北纬地区温度和卫星监测的植被活动节律变化的比较分析(英文)[J].地理学报(英文版),2013,23(1):57-66. |
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| 作者姓名： | 马廷 周成虎 裴韬 谢一春 |
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| 作者单位： | State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS;Department of Geography and Geology, Eastern Michigan University |
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| 基金项目： | National Key Technology R&D Program, No.2011BAH06B03; No.2011BAH24B10 |
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| 摘 要： | Plant growth at northern latitudes is highly responsive to the climatic changes that have occurred over recent decades. However, the sensitivity of the phasing of the seasonal cycle of terrestrial ecosystems to a changing environment remains less widely understood. We present an investigation and comparative study of large-scale changes in seasonal cy-cling of both land surface temperature and plant growth. Our results have shown trends in-dicating a marked increased towards overall plant productivity by ~3% from 1982 to 2005, reduced trends in seasonal variation at low-mid latitudes by ~2%, increased trends in sea-sonal variations at mid-high latitudes by ~7%, and an earlier phase in northern terrestrial ecosystems (~1.1 days) in parallel with changes in the phasing of surface temperatures at northern latitudes over the 24 years in this study. These shifts in annual cycles of terrestrial vegetation appear to have a distinct geographical zonality and are dependent upon latitudinal changes in climatic variables. More conspicuous changes in overall vegetation productivity and the seasonal phase of ecosystems have been observed in Eurasia compared to North America, largely because of a more rapid rise in temperature. Our results state that changing climate boosts plant growth at northern latitudes, but also alters the phase and seasonal variations of the annual cycle of terrestrial ecosystems.
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| 关 键 词： | 陆地表面温度 高纬地区 北半球 陆地生态系统 低纬度地区 植物生长 卫星 季节变化 |
A comparative analysis of changes in the phasing of temperature and satellite-derived greenness at northern latitudes |
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| MA Ting
,
ZHOU Chenghu
,
PEI Tao
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XIE Yichun.A comparative analysis of changes in the phasing of temperature and satellite-derived greenness at northern latitudes[J].Journal of Geographical Sciences,2013,23(1):57-66. |
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| Authors: | MA Ting ZHOU Chenghu PEI Tao XIE Yichun |
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| Institution: | 1. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
2. Department of Geography and Geology, Eastern Michigan University, Ypsilanti, MI 48917, USA |
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| Abstract: | Plant growth at northern latitudes is highly responsive to the climatic changes that have occurred over recent decades. However, the sensitivity of the phasing of the seasonal cycle of terrestrial ecosystems to a changing environment remains less widely understood. We present an investigation and comparative study of large-scale changes in seasonal cycling of both land surface temperature and plant growth. Our results have shown trends indicating a marked increased towards overall plant productivity by ～3% from 1982 to 2005, reduced trends in seasonal variation at low-mid latitudes by ～2%, increased trends in seasonal variations at mid-high latitudes by ～7%, and an earlier phase in northern terrestrial ecosystems (～1.1 days) in parallel with changes in the phasing of surface temperatures at northern latitudes over the 24 years in this study. These shifts in annual cycles of terrestrial vegetation appear to have a distinct geographical zonality and are dependent upon latitudinal changes in climatic variables. More conspicuous changes in overall vegetation productivity and the seasonal phase of ecosystems have been observed in Eurasia compared to North America, largely because of a more rapid rise in temperature. Our results state that changing climate boosts plant growth at northern latitudes, but also alters the phase and seasonal variations of the annual cycle of terrestrial ecosystems. |
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| Keywords: | land surface temperature plant phenology NDVI climate changes northern latitudes |
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