摘要
定量探讨三生空间的冲突可为国土空间管控提供科学依据和数据支撑。以大运河江苏段沿线城市为研究区,利用1980、1990、2000、2010和2018年的五期影像,构建三生空间冲突测度模型,探求大运河江苏段三生空间冲突的演化特征。结果表明:1980年-2018年三生空间格局变化明显:生产空间的面积由38408.59 km2持续减少到31993.95 km2,降幅16.7%;生活空间的面积逐年增加,从1980年的7283.18 km2到2018年的13273.86km2,增幅达82.3%;生态空间面积整体保持稳定。38年间研究区的空间冲突也随之发生变化:稳定可控的区域零散分布于运河周边,面积变化趋势表现为先减少后增加,于2000年达到最小值;基本可控的大片地区与大面积的水体具有高度的重合性,变化趋势与稳定可控一致;基本失控的区域散布于整个研究区,但面积逐年下降;严重失控的地区主要集中于研究区南部(镇江、常州等),前期呈现扩张之势,2000年之后开始收缩。冲突强度较低的土地利用结构以水体和建设用地为主,冲突强度较高的区域主要发生在耕地和建设用地之间。此外,部分林地和局部水体处于长期失控状态。
Quantifying spatial conflict among production-ecological-living spaces can provide scientific basis and data support to control terrestrial spaces.In this study,30 m resolution Landsat images(1980,1990,2000,2010 and 2018)were used to explore changes in spatial conflict among production-ecological-living spaces of the cities along the Grand Canal(Jiangsu Branch).Results showed that production space area gradually decreased from 38408.59 km2 in 1980 to 31993.95 km2 in 2018,falling by 16.7%;living space expanded from 7283.18 km2 in 1980 to 13273.86 km2 in 2018,increasing by 82.3%;ecological space was in a stable state.According to spatial conflict intensity,four levels were categorized in an increasing order:stable and controllable,basically controllable,basically uncontrollable,and severely uncontrollable.Stable and controllable regions were scattered around the canal.Change trend of area in this level decreased from1980 to 2000,and then increased.Most areas belong to basically controllable level were lakes such as Lake Taihu,Gaoyou,Hongze and Luoma,whose trend was the same as stable and controllable level.The region under basically controllable level was distributed widely but decreased from 1980 to 2018.The severely uncontrollable region was mainly in the southern cities(e.g.Zhenjiang and Changzhou),and its area firstly expanded from 1980 to 2000,and then shrank gradually.The land use structure with low conflict intensity was dominated by water and built-up land,while the area with high conflict intensity happened between farmland and built-up land.In addition,some woodlands and water were out of control for a long time.
作者
林芙蓉
车通
罗云建
LIN Fu-rong;CHE Tong;LUO Yun-jian(College of Horticulture and Plant Protection/College of Bioscience and Biotechnology,Yangzhou University,Yangzhou Jiangsu 225009,China;State Key Laboratory of Urban and Regional Ecology,ResearchCenter for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China)
出处
《河北省科学院学报》
CAS
2020年第4期80-89,共10页
Journal of The Hebei Academy of Sciences
基金
大运河文化带建设研究院专项(DYH18YB04)
国家自然科学基金(31500388)
扬州市重点研发项目(社会发展)专项(YZ2019051)
中国博士后科学基金(2016M601144、2017T100112)。
关键词
三生空间
空间冲突
时空特征
大运河江苏段
Ecological-production-living spaces
Spatial conflict
Spatiotemporal pattern
The Grand Canal(Jiangsu Section)
