Changing patterns of global‐scale vegetation photosynthesis, 1982–1999
Changing patterns of global‐scale vegetation photosynthesis, 1982–1999
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DOI：
10.1080/01431160500239198
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发表时间：
2005-10
影响因子：
3.4
通讯作者：
S. S. Young-S.-;R. Harris
中科院分区：
文献类型：
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作者：
S. S. Young-S.-;R. Harris
本研究的主要目的是评估1982年至1999年全球植被光合作用的变化。全球尺度高级甚高分辨率辐射计（AVHRR）归一化植被指数（NDVI）数据来自探路者AVHRR土地（PAL）和全球库存建模和绘图研究（GIMMS）数据集，分析了地球96%的非南极陆地面积。结果表明，在1982年至1999年期间，超过30%的地球陆地表面增加，不到5%的陆地表面减少，年平均光合作用大于4%。虽然PAL和GIMMS数据集产生了大致相似的变化模式，但两个数据集之间存在明显差异。植被光合作用的变化在地球仪的空间集群中发生，并受到气候变化、厄尔尼诺-南方涛动事件和人类活动的驱动。
The primary objective of this research was to assess changes in global vegetation photosynthesis between 1982 and 1999. Global‐scale Advanced Very High Resolution Radiometer (AVHRR) Normalized Difference Vegetation Index (NDVI) data from the Pathfinder AVHRR Land (PAL) and Global Inventory Modeling and Mapping Studies (GIMMS) datasets were analysed for 96% of the non‐Antarctic land area of the Earth. The results showed that between 1982 and 1999 over 30% of the Earth's land surface increased and less than 5% decreased in annual average photosynthesis greater than 4%. Although both the PAL and GIMMS datasets produced broadly similar patterns of change, there were distinct differences between the two datasets. Changes in vegetation photosynthesis were occurring in spatial clusters across the globe and were being driven by climate change, El Niño–Southern Oscillation (ENSO) events and human activity.