Research on the Land Use Structure of Asian Desert Regions at Ecological Security Level
Received date: 2005-12-20
Revised date: 2006-01-20
Online published: 2006-02-15
Based on the digital maps and remote sensing images, through analyzing the relationship between land use and sand dust transmission, this paper mainly talks about the mode, method and techniques of the land use structure optimization at the ecological security level. The research shows that: ①The land use/cover of Asia at the ecological security level takes on a macroscopical three-circle pattern. The inner zone is desert with natural conservation. The middle zone is artificial grassland with natural grassland restore. The outer zone is the compound of farmland, forest, and pastoral grassland. China lies in the east of the three-circle pattern. The northern sandy area is the main source of dust storm in East Asia. ②The sandy area in the semiarid area of China presents microscopical three-circle pattern. Based on RS data, the land use structure was optimized according to “large area ecological construction but small area production developing”. The proposed eco-productive paradigm is that the outer ecological zone of sand dunes is for natural restore of natural grassland, the middle zone of grassland is mainly for natural conservation, and the inner zone is for high efficient agricultural production. ③The whole set of technique of land use optimization of Horqin Sandy Land of China can be provided for the local government in similar areas for land use decision-making and ecological compensation.
Yue Yaojie,Zhou Hongjian,Wang Jingai,Shi Pejun,Lü Hongfeng,He Chunyang,Yan Ping . Research on the Land Use Structure of Asian Desert Regions at Ecological Security Level[J]. Advances in Earth Science, 2006 , 21(2) : 131 -137 . DOI: 10.11867/j.issn.1001-8166.2006.02.0131
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