The LUCC Responses to Climatic Changes in China from 1980 to 2000
Received date: 2005-11-21
Revised date: 2006-04-15
Online published: 2006-08-25
Supported by
National Natural Science Foundation of China, No.40971097; National Project for Basic Research, No. 2002CB412507
Adopted with Holdridge Life Zone Model (HLZM), Weight Centre Model (WCM) and Land Use Degree Model (LUDM), climate data of China in recent 20 years and 2-period LUCC data covering China are used to analyze the impact degree and direction of changes caused by climatic changes and human activities to China vegetation covers and land use. In recent 20 years, the rise in temperature and increase in precipitation in most parts of China have influenced not only China's biome, but also growth conditions of Holdridge life zone deeply. In this period, variations in both precipitation and temperature in Northeast China, North China and the Inner Mongolia Plateau have improved living environment and led to the transformation of Nature Covered Ecological Type from unutilized land to grassland and shrubland types, grassland and shrubland types transformed to forest and arable land. Meanwhile, China's economic development in recent 20 years, as well as land use increment in rural and urban areas for construction and transportation purposes in eastern coastal zones have made Land Use Type developed from farmland to construction land, leading to increase in land use degree index. Thereby the dual impacts by climatic changes and economic development resulted in a shift of Land Use Degree Weight Centre northeastward by 54 km. With regard to Land Use Degree Excursion Intensity, in east-west direction, 81% is caused by climatic changes and 19% by anthropogenic impacts; while in north-south direction, 85% is caused by climatic changes and 15% by anthropogenic impacts.
Key words： China; land use/land cover; climate change; Holdridge
GAO Zhiqiang, LIU Jiyuan . The LUCC Responses to Climatic Changes in China from 1980 to 2000[J]. Acta Geographica Sinica, 2006 , 61(8) : 865 -872 . DOI: 10.11821/xb200608009
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