城乡边缘带土地利用的路径、问题与对策

PATHS,ISSUES AND APPROACHES TO LAND USE IN URBAN FRINGES

城乡边缘带是城乡地域空间中的特殊地带,其土地利用过程动态具有独特性并产生特殊的影响和问题,需采取相应的对策。对城乡边缘地带土地利用过程、路径及其影响等方面的分析显示,城乡边缘带存在多种土地利用方式的过程路径,不同路径对未来城市型发展时的建设成本、特定地块所需的生态性及可耕性等产生相异影响。进一步分析表明,城乡边缘带土地利用中普遍存在闲置致使效益降低、方式频繁变换导致生态退化、粗放利用造成土地资源浪费等问题。对此,提出并论述了城乡边缘带在向城市空间融合的进程中,相关土地利用过程优化所应采取的主要对策,包括向土地利用过程中谋求更大效益、追求路径最优化及分步逐量安排建设用地等。

Urban fringe is transition zone between rural and urban,where the land use is a special dynamic process and leads to special impacts and issues.This paper analyzes the land use process,paths and impacts in urban fringes with results showing that there are many paths in land use that have impacts over construction costs of future urban development,ecology and farming.A series of issues such as low land use efficiency from leaving idle,eco-regression from frequent changes,wasting land resources from crude land use arise.This paper presents approaches to the land use process during urban fringe entering into urban area,including maximizing land use efficiency,optimized land use paths and allocating construction land step by step.