摘要
以滇中城市群为研究对象,选取滇中城市群2000-2019年3期Landsat遥感数据,通过面向对象分类技术提取3期绿色空间信息,通过GIS空间分析法、转移矩阵模型和景观格局指数法,从总体动态特征、空间转移过程和景观格局指数变化3个方面对滇中城市群2000-2019年绿色空间格局进行城市群、州市和区县的多尺度研究。结果表明:城市群尺度总体上呈现绿色空间缩减,非绿色空间扩张的趋势,绿色空间转移主要发生在林地空间、耕地空间和灌草空间之间,绿色空间景观破碎化程度降低,景观多样性下降;州市尺度上,昆明市、曲靖市和红河州7县市绿色空间缩减程度最为严重,绿色空间景观格局指数也存在不同变化趋势和差异;区县尺度上,林地空间增加幅度较大和耕地空间、灌草空间下降幅度最大的区县均集中在滇中外围,非绿色空间增加幅度最大的区县集中于滇中中部和南部,滇中外围区县绿色空间斑块形状越来越规则,滇中西部区县景观多样性降低。多尺度研究不仅有助于对不同尺度上各个地区绿色空间的总体水平和动态特征进行全面分析,还有助于各级政府从不同尺度上制定相应的绿色空间保护和经济发展措施,对促进建设滇中高原生态宜居城市群具有重要意义。
Taking urban agglomeration in central Yunnan as the research object, this paper selects 3 periods of Landsat remote sensing data of urban agglomeration in central Yunnan from 2000 to 2019, extracts 3 periods of green spatial information through object-oriented classification technology, using GIS spatial analysis method,transfer matrix model and landscape pattern index method, this paper conducts multi-scale study on the green spatial pattern of urban agglomerations, prefectures, cities and counties in central Yunnan from 2000 to 2019 from 3 aspects of overall dynamic characteristics, spatial transfer process and landscape pattern index change. The results indicate that the scale of urban agglomeration generally shows the trend of green space shrinking and non-green space expanding. The transfer of green space mainly occurs among forest land space, cultivated land space and shrub-grass space, and the degree of landscape fragmentation and landscape diversity in green space decreases. On the prefecture-city scale, 7 counties and cities in Kunming, Qujing and Honghe have the most serious reduction in green space, and there are different trends and differences in green space landscape pattern index. On the districtcounty scale, the districts and counties with the largest increase in forest land space and the largest decrease in cultivated land space and shrub-grass space are concentrated in the periphery of central Yunnan, while the districts and counties with the largest increase in non-green space are concentrated in central and southern Yunnan. The green space patches in peripheral counties of central Yunnan are getting simpler and simpler, and the landscape diversity in central and western Yunnan is decreasing. Multi-scale study not only helps to comprehensively analyze the overall level and dynamic characteristics of green space in various regions at different scales, but also helps governments to formulate corresponding green space protection and economic development measures at different scales, and is of great significance for promoting the construction of ecologically livable urban agglomeration in the plateau region of central Yunnan.
作者
支林蛟
王锦
刘敏
王柱莲
Zhi Linjiao;Wang Jin;Liu Min;Wang Zhulian(College of Landscape Architecture and Horticulture,Southwest Forestry University,Kunming Yunnan 650233,China;Faculty of Architecture and Urban Planning,Kunming University of Science and Technology,Kunming Yunnan 650550,China;College of Tourism and Geographical Sciences,Yunnan Normal University,Kunming Yunnan 650500,China)
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2021年第5期88-97,共10页
Journal of Southwest Forestry University：Natural Sciences
基金
云南省农业联合基金项目(2018FG001-009)资助
国家自然科学基金项目(51968064)资助。
关键词
绿色空间
景观格局
动态变化
多尺度
滇中城市群
green space
landscape pattern
dynamic change
multi-scale
urban agglomeration in central Yunnan
