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《Earth Science Frontiers》 2008-02
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Digital research on agricultural ecological-environment

Lin Nianfeng1,Tang Jie1,Sun Ping'an2,Li Zhaoyang1,Wang Xuege1,Wang Chenye11.College of Resource and Environment,Jilin University,Changchun 130026,China2.Department of Region Economy,Jilin Province Development and Reform Commission,Changchun 130061,China  
In the past half century,land degradation has become a global environmental problem.China is extremely troubled by land degradation.Land salinitation and desertification have seriously restricted agriculture and husbandry development in the Songnen plain.The authors have long been engaged in agricultural ecological-environment researches in which the authors have applied the traditional method,the environment simulation,the information system and the digitization technology.Under the support of geosciences,information science and computer science,the Digital Earth and the other related theory,method and technique,we have constructed a digital information system for agricultural ecological-environment in the west of Jilin province.The core of the system is the spatial database.The digital information system has many functions,including enormous spatial data memory and management,environment assessment,forecast,and simulation,programming and decision-making.The expansibility and transplantability are the main merits of the system.This article prominently introduces recent progress in the agricultural ecological-environment research.
【Fund】: 国家自然科学基金项目(40273047 40572170);; 教育部博士点基金项目(20050183056)
【CateGory Index】: X171.3
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