Chin J Plan Ecolo ›› 2005, Vol. 29 ›› Issue (2): 175-184.doi: 10.17521/cjpe.2005.0023
• Research Articles •
NI Jian GUO Ke LIU Hai-Jiang and ZHANG Xin-Shi*
An ecological regionalization system was developed for the arid lands of northwestern China based on ecological and environmental factors, including climate, large-scale terrain features, landform, geology, vegetation, and soils, in combination with characteristics of social and economic development. The region was stratified into discrete geographical units of uniformity at three levels: Level I, the ecodomain, was based on climate and large-scale terrain features with consideration of the role of higher levels of regionalization and industrial development; Level II, the ecoregion, was based primarily on secondary landform, topography and large-scale vegetation types; and, Level III, the ecodistrict, was based on differences in local vegetation due to differences in geology and soils, as well as its eco-productive paradigm and potential future development. Based on this three-class system, we defined three ecodomains, 23 ecoregions and 80 ecodistricts. An ecoregional map of northwestern arid lands of China was drawn at 1∶1 million scale using GIS. The goals of the ecological regionalization classification were not only to develop a unique system of arid land ecological classification, but also to supervise local development and land use management to promote sustainable development of arid lands in northwestern China.
NI Jian, GUO Ke, LIU Hai-Jiang, ZHANG Xin-Shi. ECOLOGICAL REGIONALIZATION OF ARID LANDS IN NORTHWESTERN CHINA[J].Chin J Plan Ecolo, 2005, 29(2): 175-184.
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