摘要
基于2000年、2012年两期遥感影像解译结果,运用扩展动态分析法、象限方位分析法、同心圆分析法及土地利用转换分析法,对下关镇城镇聚落用地的扩展特征及模式进行分析。得出以下结论:13年间,下关镇城镇聚落用地整体扩展态势明显,呈明显的南北分异,南部地区用地扩展规模与速度远低于北部;在距离镇政府2 000~2 500m及3 000~3 500m的圈层范围内为城镇聚落用地的主要扩展区;随用地扩展,城镇聚落用地海拔整体提升,低坡缓丘地区为用地扩展的首要选择。随时间演进,新建城镇聚落用地斑块破碎化程度较高、形态复杂、受人类活动影响明显,主要由耕地和非聚落人工覆被用地转入,呈现出城镇扩张推动型、交通干线引致型及工业发展衍生型等3类扩展模式。
Based on 2000 and 2012 remote sensing image interpretation results,using the extended dynamic analysis method,the quadrant orientation analysis method,concentric circle analysis and land use conversion analysis,r we analyzed the characteristics and patterns of urban settlement land expansion in Xiaguan Town.The results indicate that in the last thirteen years,the overall expansion situation of urban settlement land in Xiaguan Town was obvious,showing a clear north-south differentiation,the scale and speed of land expansions in the south were much lower than those in the north;2 000~2 500 mand 3 000~3 500 mcircle from the town government is the main expansion area of urban settlement land;with the expansion,urban settlement land elevation rose,low slope hilly area was the first choice for land expansion.With time going on,the plaque fragmentation degree of the newly-built urban settlement land is higher and its shape is complex,which is obviously influenced by human activities,mainly by the conversion of cultivated land and non-settlement artificial land,showing three types of expansion patterns,such as urban expansion-driven pattern,traffic-induced pattern and industrial development derivatives.
出处
《水土保持研究》
CSCD
北大核心
2017年第6期341-347,共7页
Research of Soil and Water Conservation
基金
国家社会科学基金重大项目"中缅泰老黄金四角跨流域合作与共生治理体系研究"(16ZDA041)
国家自然科学基金"云南环洱海地区乡村聚落空间演变机理与优化研究"(41261044)
国家自然科学基金"山地多民族共生区农户居住空间演变机制研究:以滇西北地区为例"(41601179)
国家自然科学基金"基于坡度约束CA模型的高原城镇坝区蔓延驱动力与管控机制研究"(41301180)
关键词
城镇聚落
用地扩展
模式分析
环洱海地区
下关镇
urban settlement
land expansion
pattern analysis
Erhai Lake Area
Xia Guan Town
