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Quantitative Assessment of Wheaton Planting Suitability of Cultivated-Land in Guangde County of GIS

Ye Junhua(Agricultural Extension Center of Xuancheng,Xuancheng 242000,China)  
Based on the historical data and the current data of the cultivated-land which obtained in 1985 from the 2nd National Soil Survey and in 2005 from the project of 'Soil Test and Formula Fertilization',the wheat planting suitability of cultivated-land in Guangde County was assessed quantitatively with ArcGIS and CLRMIS(Cultivated Land Resource Management Information System at County Scale).The results showed that the most suitable,suitable,reluctant and not-suitable planting grade of cultivated land are 7400hm2,31150hm2,26700hm2 and 9750hm2,respectively;which constitute of 9.9%,41.5%,35.6% and 13.0% of the total area of the cultivated land,respectively.
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