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Realization and study of the database system construction of farmland quality investigation in Chengdu

WANG Hong,REN Guo-ye(Remote Sensing Application Institute,Sichuan Academy of Agricultural Sciences,Sichuan Chengdu 610066,China)  
The technological methods of the farmland quality investigation database system of Chengdu and the Management System construction were studied.The GIS technology was used to manage the data such as topography,geomorphy,the soil,land use,land pollution and the agricultural production as a whole,and the special and attribute databases,and related different databases to construct farmland resources database were established.The computer technology was used to realize the data storing and analysis,quantitative and automatic evaluation of farmland quality and so on,which could supply several information services for management and the sustainable utilization of farmland resource of Chengdu.
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