Position: Home > Articles > Analysis on Landscape Patterns of Regional Ecological Land in Nanjing Metropolitan Area on Multiple s patial Scales
Journal of West China Forestry Science
2024
(1)
178-187
不同空间尺度下南京都市圈区域生态用地景观格局演变分析
作 者：
刘伟;王涵玉;李欢欣;赵一嘉;许浩
单 位：
;南京林业大学风景园林学院
关键词：
区域生态用地;多尺度分析;景观格局;动态演变;南京都市圈
摘 要：
随着城镇化进程的不断推进,都市圈已经成为我国城镇化发展格局的主体形态之一.区域生态用地对维护都市圈生态系统安全具有重要作用,开展多尺度景观格局分析有利于把握快速城镇化背景下都市圈区域生态用地景观格局的演变特征和规律.本研究以南京都市圈为例,基于2000-2020年Landsat影像数据,综合使用动态度、土地利用转移矩阵、景观格局指数等方法,分析都市圈、城市、区县3个尺度下区域生态用地景观格局.结果显示:(1)近20年间南京都市圈区域生态用地总体规模呈"急剧下降"到"逐渐增加"的趋势,其变化具有明显的转入和转出双向特征;水域和草地景观格局趋于破碎化,林地景观优势度提升.(2)城市尺度下各城市区域生态用地规模在时间上的变化特征与都市圈基本一致,但在景观格局变化上具有差异,其中宣城区域生态用地景观格局逐渐优化,而淮安、马鞍山、芜湖则破碎化程度增加.(3)区县尺度下约半数以上区县的区域生态用地的规模下降且景观破碎化增大,其中盱眙县、郎溪县和广德市加剧明显.研究结果表明:多尺度分析不仅有助于深入全面了解都市圈区域生态用地格局演变特征,还有利于制定满足不同空间层次且兼顾差异性的生态保护策略.
译 名：
Analysis on Landscape Patterns of Regional Ecological Land in Nanjing Metropolitan Area on Multiple s patial Scales
单 位：
College of Landscape Architecture,Nanjing Forestry University,Nanjing Jiangsu 210037,P.R.China;Power China Municipal Engineering Co.,Ltd.,Zhuhai Guangdong 519000,P.R.China
关键词：
regional ecological land%multi-scale analysis%landscape pattern%dynamic evolution%Nanjing Metropolitan Areas
摘 要：
With the continuous advancement of urbanization,metropolitan areas have become one of the main forms of urban development patterns in China.Regional ecological land(REL)plays a significant role in maintaining the ecosystems system security of metropolitan areas.Multi-scale analysis helps grasp the evolution characteristics and pattern of REL under rapid urbanization.This study takes the Nanjing Metropolitan Area as an example,and based on Landsat images from 2000 to 2020,it uses method like dynamic change,land use transfer matrix and landscape pattern index,to analyze REL on metropolitan area,city,and district/county scale.The results shown that:(1)Over the past 20 years,the metropolitan area scale of REL has shown a trend from″sharp decline″to″gradual increase″,with obvious bidirectional characteristics in its inflow and outflow.Additionally,the landscape pattern of water and grassland trends to fragmentation,while the dominance of forest has increased.(2)At the city scale,the temporal changes of REL area basically consistent with the metropolitan area,but there are differences in the changes in the landscape pattern,in which the landscape pattern of the REL in Xuancheng region is gradually optimized,while fragmentation increases in Huai′an,Ma′anshan,and Wuhu.(3)At the district/county scale,more than half districts/counties have experienced a decrease in REL area and a rise in landscape fragmentation,particularly pronounced in Xuyi County,Langxi County and Guangde City.These findings demonstrate that multi-scale analysis not only provides insight into the characteristics of changes of o REL in the metropolitan area,but also facilitates the formulation of ecological strategies that consider differences at various spatial scales.
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