Influences of different land use spatial control schemes on farmland conversion and urban development.
Influences of different land use spatial control schemes on farmland conversion and urban development.
复制标题
不同土地利用空间控制方案对农地非农化和城市发展的影响。
DOI：
10.1371/journal.pone.0125008
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Zhang L
中科院分区：
文献类型：
--
作者：
Zhou M;Tan S;Zhang L
土地利用规划作为控制城市发展和保护耕地的有效工具，一直被官方实施。然而，其对土地利用变化的影响在中国尚未得到检验。以杭嘉湖地区为例，研究了不同土地利用空间管制方案对农地非农化和城镇发展的影响。利用遥感技术、地理信息系统和景观指标，比较了城市规划区和非城市规划区之间的农地非农化和城市发展模式。结果表明：非城市规划区农地非农化强度高于城市规划区，农地格局破碎化程度高于城市规划区。非城市规划区建设用地格局呈现聚集趋势，而城市规划区建设用地格局呈现破碎化与聚集化的双重趋势。现有建成区对非城市规划区建成区用地扩展的影响小于城市规划区。在城市规划区，建设用地以持续发展的方式蔓延，导致耕地非农化;在非城市规划区，建设用地以跨越式发展的方式蔓延，导致耕地面积下降和破碎化。我们认为，整合城市和非城市规划区的土地利用规划是土地利用规划和管理的基本要求。
Land use planning is always officially implemented as an effective tool to control urban development and protect farmland. However, its impact on land use change remains untested in China. Using a case study of Hang-Jia-Hu region, the main objective of this paper was to investigate the influence of different land use spatial control schemes on farmland conversion and urban development. Comparisons of farmland conversion and urban development patterns between the urban planning area and the non-urban planning area were characterized by using remote sensing, geographical information systems, and landscape metrics. Results indicated that farmland conversion in the non-urban planning area was more intensive than that in the urban planning area, and that farmland patterns was more fragmented in the non-urban planning area. Built-up land patterns in the non-urban planning area showed a trend of aggregation, while those in the urban planning area had a dual trend of fragmentation and aggregation. Existing built-up areas had less influence on built-up land sprawl in the non-urban planning area than that in the urban planning area. Built-up land sprawl in the form of continuous development in the urban planning area led to farmland conversion; and in the non-urban planning area, built-up land sprawl in the form of leapfrogging development resulted in farmland areal declines and fragmentation. We argued that it is a basic requirement to integrate land use plans in urban and non-urban planning areas for land use planning and management.
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