Understanding Gully Erosion Vulnerability in Old Imo State Using Geographic Information System and Geostatistics

作者: Josh U. Ogbonna

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摘要: Geostatistical model (GM ) and the Geographic Information System (GIS) are used as Decision Support (DSS) for examination of vulnerability rate gully erosion in Old Imo State. The sites were identified using a comb ination Landsat TM satellite imagery, interpretation aerial photographs field surveys Global Positioning Systems (GPS). Databases on geological formations, determined through fieldwork, digit ization. Factors which fluence occurrence, such slope, distance from drainage terrain mapping unit calculated fro m topographic database, relationship between these factors determined.

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