关键词: 水分胁迫, 水分胁迫

Abstract: In order to ease the highlighted contradiction in land use for urban and rural development in urban-rural fringe areas, and solve the low intensive utilization of construction land use in rural areas, the author had selected 13 evaluating indicators such as the per capita residential area, the cultivated land residential land ratio, the population density of rural residential land, the urbanization rate, per capita output of grain, etc. and the 10 towns of Jiulongpo District in Chongqing as the research objects, established a evaluation index system to evaluate the intensive utilization of rural construction land through the methods of comprehensive Delph, the analytic hierarchy process and the comprehensive evaluation. The author had divided the intensive utilization degree into 3 level, analyzed spatial pattern and accumulation rules of the rural construction land in research area, it had concluded the obvious changing trend of land use intensity in those northeast-southwest area and the slow changing trend in northwest-southeast based on ARCGIS 9.3, presented the cause of the low intensive use level of rural construction in urban-rural fringe land and made some suggestions to improve the intensive use level.