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MECHANISM OF INFLUENCE OF LANDUSE CHANGE ON AGRICULTURAL NATURAL DISASTER(II)── BASED ON THE HOME INQUIRY, FIELD INVESTIGATION AND GPS ANALYSIS

Shi Pei-ju

Abstract

Based on the field investigation of Dingcheng District, Changde City of Hunnan Province and the use of GPS technique, the impact of land- use change(spatial pattern and economy density) on agricultural disaster of flood and waterlogging is analyzed. The results indicate that the economy level and land-use spatial pattern are the crucial factors of agricultural disaster of flood and waterlogging.

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Key concepts: Flood myth, Geography, Waterlogging (archaeology), Natural disaster, Agriculture, Land use, Global Positioning System, Agricultural land