| 根据MODIS数据推断的中国东北森林物候格局 |
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| 引用本文： | 于信芳,庄大方,侯西勇,CHEN Hua.根据MODIS数据推断的中国东北森林物候格局[J].地理学报(英文版),2005,15(2):239-246. |
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| 作者姓名： | 于信芳 庄大方 侯西勇 CHEN Hua |
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| 作者单位： | 1.Inst.of Geographic Sciences and Natural Resources Research，CAS，Beijing 100101，China;2.Graduate School of the Chinese Academy of Sciences，Beijing 100039，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划);中国科学院知识创新工程项目 |
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| 摘 要： | 1 IntroductionPhenology is the study ofthe recurring vegetation cycles and theirconnection to the surroundingenvironm ental factors such as clim ate, hydrology, soil, etc. (W an et al., 1987). Phenologicalrecords provide an integrative indication of the s…
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| 收稿时间： | 5 November 2004 |
| 修稿时间： | 26 January 2005 |
Forest phenological patterns of Northeast China inferred from MODIS data |
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| YU Xinfang,Zhuang Dafang,HOU Xiyong,CHEN Hua.Forest phenological patterns of Northeast China inferred from MODIS data[J].Journal of Geographical Sciences,2005,15(2):239-246. |
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| Authors: | YU Xinfang Zhuang Dafang HOU Xiyong CHEN Hua |
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| Institution: | 1. Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | The role of remote sensing in phenological studies is increasingly regarded as a key to understand large area seasonal phenomena. This paper describes the application of Moderate Resolution Imaging Spectroradiometer (MODIS) time series data for forest phenological patterns. The forest phenological phase of Northeast China (NE China) and its spatial characteristics were inferred using 1-km 10-day MODIS normalized difference vegetation index (NDVI) datasets of 2002. The threshold-based method was used to estimate three key forest phenological variables, which are the start of growing season (SOS), the end of growing season (EOS) and growing season length (GSL). Then the spatial patterns of forest phenological variables of NE China were mapped and analyzed. The derived phenological variables were validated by the field observed data from published papers in the same study area. Results indicate that forest phenological phase from MODIS data is comparable with the observed data. As the derived forest phenological pattern is related to forest type distribution, it is helpful to discriminate between forest types. |
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| Keywords: | forest phenology spatial pattern MODIS Northeast China |
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