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Reconfiguration of the Comprehensive Suitability Values and Suitability Grading Method for the Land Suitability Assessment  

Lee Jong-Yong (Land Information Center, Korea Land Corporation)
Lee Hee-Yeon (Graduate School of Environmental Studies, Seoul National University)
Publication Information
Journal of the Korean Geographical Society / v.40, no.1, 2005 , pp. 27-46 More about this Journal
Abstract
Land suitability assessment(LSA) is a useful method to assess land characteristics according to its physical, locational, and environmental characteristics, and then to classify it into several categories based on its usability and the necessity for conservation. Therefore, the credibility of this assessment result depends on the rationality of assessment method such as computation of suitability values and the criteria of ranking the land grade. This study focused on identifying problems in current LSA method by critically reviewing it, and aimed to suggest a suitable method for the assessment of land suitability. As a alternative method in this study, linear transformation method was used for scoring factors instead of critical values and the weight for each assessment factor. and all values of those factors were added to produce comprehensive suitability values. Those values were ordered and categorizied with suitability level based on the ratio of square measure. After comparing existing LSA method to the suggested alternative method, it is concluded that the alternative method was more suitable to assess the characteristics of lands than existing LSA method. This method was also suitable to represent the characteristics of various assessment factors. Field survey using satellite image clearly revealed the suitability of the alternative method compared to an existing method of land assessment. Furthermore, the alternative method of grading the land suitability improves the problem of using standardiZiation method and gives more flexibility, which makes this method very rational.
Keywords
land suitability assessment; assessment factor; assessment method; comprehensive suitability value; suitability grade;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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