摘要
以2000、2005和2010年三期土地利用现状图为基础,分析了南京市东坝镇土地景观和斑块类型两个水平的景观指数时空变化特征。结果表明,耕地景观为优势景观,大量城镇斑块以干扰斑块散布于耕地中;耕地减少与城镇用地增加是东坝镇景观格局变化最显著、最主要的特征;城镇化快速发展与扩张占用了大量耕地,原有城镇的延伸扩张和新建城镇破坏了耕地的连通性与整体性,同时加剧了城镇用地与耕地景观的破碎程度,发生在耕地与城镇用地上的转换给以耕地为基质的生态系统稳定性带来负面影响。因此,经济特别是工业发展是地区景观格局发生变化的重要因素,有必要协调发展与保护的关系,促进新型城镇化和生态文明建设。
Based on land use maps from 2000,2005,and 2010,the spatio-temporal dynamic patterns of landscape and the type of patches have been analyzed for Dongba Town,Nanjing City.Results show that cultivated land was the dominant type of landscape,with a large number of urban patches embedded in it.In addition,the decrease of cultivated land and the increase of urban land were the most significant and primary characteristics of the change in landscape pattern in Dongba Town.With rapid urbanization,much of the cultivated land has been occupied.Meanwhile,the urban establishment in the past,and the expansion at present,have not only destroyed the connectivity and the integrity of the cultivated landscape,but have also intensified the disconnect between the urban land and the cultivated landscape.As a result,the conversion from cultivated land to urban land has triggered a negative impact on the stability of the ecosystem that was primarily dependent on cultivated land.As urban development is an important factor in the change of regional landscape patterns,it is necessary to harmonize the relationship between urban development and environmental protection,by promoting the new concept of urbanization based on ecological civilization construction.
出处
《上海国土资源》
2016年第1期24-27,43,共5页
Shanghai Land & Resources
基金
江苏省国土资源厅科研项目
关键词
土地利用
景观格局
镇域尺度
land use
landscape pattern
township scale
