摘要
利用1990年土地详查变更调查数据和2006年的SPOT遥感影像,借助GIS空间分析能力,通过计算土地利用类型动态度、转移矩阵、扩展强度指数分析了慈溪市的城镇用地利用变化的时空特征。研究结果表明:1)慈溪市城市、建制镇、交通运输用地扩展的大部分来源于耕地;2)浒山街道城镇、交通建设用地扩展强度指数大于其他镇;3)建设用地扩展以城区周边的街道镇为主。
Based on the SPOT image of Cixi city in 2006 and the data of land alter-surveying in 1990,spatial patterns and temporal variation of land use change were analyzed.Some analytical indexes such as the land-use dynamic degree model,transfer matrix,growth intensity index were introduced to describe the spatial differentiation of urban land expansion.The research showed that there was a rapid growth of urban land use while significant differences in land use among regions.The urban construction land was increasingly expanding by massively occupying arable land.Centers of growth are concentrated on the central city as well as regions adjacent to the city.
出处
《地理空间信息》
2011年第1期112-113,13,共2页
Geospatial Information
