, Volume 20, Issue 3, pp 323-332
Date: 27 Apr 2010

Spatial and temporal variation of global LAI during 1981–2006

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Abstract

Earth is always changing. Knowledge about where changes happened is the first step for us to understand how these changes affect our lives. In this paper, we use a long-term leaf area index data (LAI) to identify where changes happened and where has experienced the strongest change around the globe during 1981-2006. Results show that, over the past 26 years, LAI has generally increased at a rate of 0.0013 per year around the globe. The strongest increasing trend is around 0.0032 per year in the middle and northern high latitudes (north of 30°N). LAI has prominently increased in Europe, Siberia, Indian Peninsula, America and south Canada, South region of Sahara, southwest corner of Australia and Kgalagadi Basin; while noticeably decreased in Southeast Asia, southeastern China, central Africa, central and southern South America and arctic areas in North America.

Foundation: 863 Program, No.2007AA12Z158; National Science & Technology Pillar Program, No.2006BAC08B04; 2008BAK50B06; 2008BAK49B01
Author: Liu Siliang (1986–), MA Candidate, specialized in quantitative remote sensing.