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作 者:匡垚瑶 杨庆媛[1] 王兆林[2] 慕卫东[1] 毕国华[1]
机构地区:[1]西南大学地理科学学院,重庆400715 [2]重庆工商大学旅游与国土资源学院,重庆400067
出 处:《山地学报》2017年第3期399-411,共13页Mountain Research
基 金:国土资源部公益性行业科研专项经费项目(201311006)~~
摘 要:城乡结合部是城乡争夺土地资源的核心区域,深入开展郊区农村居民点布局优化研究对于统筹城乡发展具有现实意义。本研究以重庆市渝北区古路镇为例,运用转移矩阵法剖析低山丘陵地区城乡结合部土地利用变化特征,从地形条件、生态环境、居民点规模、区位条件4个方面建立评价指标体系对古路镇农村居民点布局适宜性进行评价,结合规划政策导向归纳出5种农村居民点布局优化类型,并根据居民点空间扩展限制分区,制定差异化布局优化策略。主要结论为:(1)2009—2013年5年间古路镇城镇建设用地处于高速扩展之中,导致耕地面积缩减明显,表现出人类活动在城乡发展过程的不均衡性。(2)古路镇农村居民点布局适宜性与居民点平均规模呈现正相关关系;在空间分布上,适宜性等级沿主要交通线两侧逐渐降低。(3)基于规划政策导向、农村居民点空间扩展限制分区,制定差异化的优化策略,城镇转化型居民点逐步转变为城镇建设用地;村庄重点扩展类型居民点建设成为中心社区,承担对周围村落的服务职责;村庄挖潜型居民点集约利用土地,积极发展休闲农业产业;村庄合并型居民点整合零散用地,共享公共服务资源;迁移型居民点迁出新建,优化农村"三生"空间,以实现低山丘陵地区城乡结合部农村居民点的城镇化和集约化。Since urban sites has evolved into the core area of competition for land resources,it is quite valuable that optimizing residential settlement layout in the urban fringe for balancing the urban and rural development. In this paper,the town called Gulu in Chongqing is taken as a case to analyze the land use change based on transferring matrix method. In order to evaluate the suitability of rural settlements distribution,a suitability index system is built by choosing the indexes from terrain,ecological environment,land scale of settlement,and location. Based on the results of suitability evaluation and planning policies,five optimization modes are concluded,meanwhile,differentiated optimization policies are formulated according to the limited ranks of rural settlement land extension.Finally,the results can be concluded as three points:( 1) Gulu's urban construction land experienced rapid expansion from 2009 to 2013,leading to an obvious decrease in arable area,which showed the various impacts of humans activities during the urban-rural development.( 2) There was a positive correlativity between suitability and average size of rural settlements. Meanwhile,the suitability of rural settlements saw a gradual decrease along the both sides of the main road.( 3) In terms of the optimization strategies,the urban transformation pattern settlements were suggested to change into urban construction land gradually. The key extension pattern settlements were suggested to build as the center community to serve the surrounding villages. The potentiality exploitation pattern was characterized by low efficiency land use and superior leisure agricultural production conditions. We suggested development activities with high intensity on these settlements. Combine pattern settlements were advised to be merged for sharing the public service resources. Furthermore,the migration pattern settlements were proposed to be moved for optimizing rural spatial structure.
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