globalchange  > 过去全球变化的重建
DOI: 10.3390/rs11131546
WOS记录号: WOS:000477049000038
论文题名:
Geographic and Climatic Attributions of Autumn Land Surface Phenology Spatial Patterns in the Temperate Deciduous Broadleaf Forest of China
作者: Lang, Weiguang1; Chen, Xiaoqiu1; Liang, Liang2; Ren, Shilong1; Qian, Siwei1
通讯作者: Chen, Xiaoqiu
刊名: REMOTE SENSING
ISSN: 2072-4292
出版年: 2019
卷: 11, 期:13
语种: 英语
英文关键词: vegetation index ; end of the growing season ; leaf fall date ; spatial pattern ; spatial phenology model ; climatic control
WOS关键词: NET ECOSYSTEM PRODUCTIVITY ; GROWING-SEASON ; VEGETATION PHENOLOGY ; PLANT PHENOLOGY ; LEAF PHENOLOGY ; INDEX ; SENESCENCE ; RESPONSES ; DYNAMICS ; POPULUS
WOS学科分类: Remote Sensing
WOS研究方向: Remote Sensing
英文摘要:

Autumn vegetation phenology plays a critical role in identifying the end of the growing season and its response to climate change. Using the six vegetation indices retrieved from moderate resolution imaging spectroradiometer data, we extracted an end date of the growing season (EOS) in the temperate deciduous broadleaf forest (TDBF) area of China. Then, we validated EOS with the ground-observed leaf fall date (LF) of dominant tree species at 27 sites and selected the best vegetation index. Moreover, we analyzed the spatial pattern of EOS based on the best vegetation index and its dependency on geo-location indicators and seasonal temperature/precipitation. Results show that the plant senescence reflectance index-based EOS agrees most closely with LF. Multi-year averaged EOS display latitudinal, longitudinal and altitudinal gradients. The altitudinal sensitivity of EOS became weaker from 2000 to 2012. Temperature-based spatial phenology modeling indicated that a 1 K spatial shift in seasonal mean temperature can cause a spatial shift of 2.4-3.6 days in EOS. The models explain between 54% and 73% of the variance in the EOS timing. However, the influence of seasonal precipitation on spatial variations of EOS was much weaker. Thus, spatial temperature variation controls the spatial patterns of EOS in TDBF of China, and future temperature increase might lead to more uniform autumn phenology across elevations.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/141301
Appears in Collections:过去全球变化的重建

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作者单位: 1.Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China
2.Univ Kentucky, Dept Geog, Lexington, KY 40506 USA

Recommended Citation:
Lang, Weiguang,Chen, Xiaoqiu,Liang, Liang,et al. Geographic and Climatic Attributions of Autumn Land Surface Phenology Spatial Patterns in the Temperate Deciduous Broadleaf Forest of China[J]. REMOTE SENSING,2019-01-01,11(13)
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