摘要
进入高速城市化发展阶段,城市边缘区是地域上集中体现这一变化的重要景观。在遥感解译和GIS技术支持下,确定了北京城市边缘区范围,丰台区部分地域位居其中;进而采用统计分析技术对1992年以来的丰台区土地利用变化历史过程及空间特征进行了分析,结果表明,农用地成为其他用地的重要补给来源,建设用地补给来源是全方位的,并且土地利用结构在空间上呈现明显的圈层结构,土地利用程度随着时间的推移明显加强。最后,利用马尔可夫模型对丰台区未来10 a的土地利用结构及空间发展走向进行了预测,得出农业用地转化幅度将逐渐减小,直到达到相对稳定状态,河东地区将是近期土地利用结构转移的焦点。
Urban fringe is an important landscape which embodies acute changes of urban land structure in the stage of high speed urbanization.With the aid of RS and GIS,the urban fringe of Beijing city is confirmed,and part of Fengtai district is included.The spatial-temperal change character of Fengtai district land use has been analyzed with statistic analysis methods since 1992.It is concluded that the farming land use has been important supply source of other land use,and the supply source building land use is all kinds,and the land use distributing takes on obvious circle structure,and the extent of land use has been strengthened with the time going on.At last,the land use structure and spatial trend have been forecasted with Markvo model in the coming decade.It is found that the extent of the farming land use will slow down until reaching relative stabilization state,the area to the east of Yongding River will be the focus of land use change in the near future.
出处
《水土保持研究》
CSCD
北大核心
2008年第5期11-14,共4页
Research of Soil and Water Conservation
基金
国家自然科学基金资助(40571040)
