摘要
[目的]科学识别和掌握土地利用冲突的时空演变特征是区域寻求可持续发展的基础。[方法]基于相对生态风险评价概念模型和景观生态学理论构建土地利用空间冲突测度模型,定量分析了贵阳市1990—2020年的空间冲突水平及时空演变特征。[结果]1990—2020年贵阳市土地利用冲突整体处于可控级别且变化明显,稳定可控占比由24.76%上升到61.10%,严重失控占比由2.24%波动上升到2.43%,有增长趋势。贵阳市土地利用冲突呈“南高北低”的空间格局,稳定可控和基本可控向息烽县、开阳县、乌当区等山地丘陵聚集;基本失控和严重失控趋于向城市市区及其周边区域集中。贵阳市土地利用冲突具有明显的空间聚集效应,整体呈“南高北低”相对的分布特征;热点区由清镇市、修文县、花溪区向城市中心迁移,冷点区主要聚集在乌当区、开阳县。[结论]贵阳市近30年土地利用冲突时空变化显著,基本可控向稳定可控转变,失控地区向城市中心聚集,未来要重视城市中心生态建设,协调生态与经济的平衡发展。
[Objective]The scientific identification and mastery of the spatial and temporal evolutionary characteristics of land use conflicts are the basis for the region to seek sustainable development.[Methods]Based on the concept model of relative ecological risk assessment and the theory of landscape ecology,a measurement model of land use spatial conflict was constructed to quantitatively analyze the spatial conflict level and spatiotemporal evolution characteristics of Guiyang City from 1990 to 2020.[Results]From 1990 to 2020,the overall land use conflict in Guiyang City was at a controllable level and changed significantly.The proportion of stable and controllable rose from 24.76%to 61.10%.and the proportion of seriously out of control rose from 2.24%to 2.43%,showing a growth trend.The land use conflict in Guiyang City presented a spatial pattern of high level in the south and low level in the north,which was stable,controllable and basically controllable and converges in Xifeng County,Kaiyang County,Wudang District,and other mountains hill.Basically out of control and seriously out of control tended to concentrate in urban areas and their surrounding areas.The land use conflict in Guiyang City had obvious spatial aggregation effect,which was characterized by a relatively‘south-north’distribution.The hot spots moved from Qingzhen City,Xiuwen County,and Huaxi District to the city center.The cold spots mainly concentrated in Wudang District and Kaiyang County.[Conclusion]The spatiotemporal changes of land use conflicts were significant in Guiyang City over the past 30 years,basiclly controllable area changed to stable and controllable area,and the out-of-control areas gathered in urban center.Guiyang City should attach importance to the ecological construction of the city center and reconcile the balanced development of ecology and economy in the future.
作者
陈大蓉
周旭
胡锋
裴宇
胡玉雪
罗为维
Chen Darong;Zhou Xu;Hu Feng;Pei Yu;Hu Yuxue;Luo Weiwei(School of Geography and Environmental Sciences,Guizhou Normal University,Guiyang 550025,China;Ecological Meteorology and Satellite Remote Sensing Center of Guizhou Province,Guiyang 550002,China)
出处
《水土保持研究》
CSCD
北大核心
2023年第6期337-344,356,共9页
Research of Soil and Water Conservation
基金
国家自然科学基金委员会—贵州省人民政府喀斯特科学研究中心项目(U1812401)
贵州省科学技术项目([2017]113)
贵州省科技支撑项目([2017]2855)。
关键词
土地利用冲突
冲突测度
时空变化
贵阳市
land use conflict
conflict measurement
spatialtemporal characteristics
Guiyang City
