测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
GEOMATICS & SPATIAL INFORMATION TECHNOLOGY
2015年
6期
23-25
,共3页
谢斌%蔡志刚%张煜洲%吴文渊%张登荣%王洁
謝斌%蔡誌剛%張煜洲%吳文淵%張登榮%王潔
사빈%채지강%장욱주%오문연%장등영%왕길
城市动态扩展%遥感%上虞
城市動態擴展%遙感%上虞
성시동태확전%요감%상우
urban expansion%remote sensing%Shangyu city
采用地形图和MSS/TM,SPOT5卫星遥感数据,提取城市建成区范围,计算多种城市扩展指数,研究分析了1976~2010年上虞城市用地扩展情况。研究发现,20世纪70年代至21世纪10年代,上虞城市用地扩展面积和强度在最初爆发性增长后,保持高位稳定。城市紧凑度指数持续降低,城市分形维度在大幅下降后保持稳定,城市发展日益复杂化,边缘日益曲折、破碎化。今后市政规划建设应着力发展建设城市用地边缘离散曲折之处,提高城市紧凑度,降低分形维度,从而提高城市区域市政服务职能效率。
採用地形圖和MSS/TM,SPOT5衛星遙感數據,提取城市建成區範圍,計算多種城市擴展指數,研究分析瞭1976~2010年上虞城市用地擴展情況。研究髮現,20世紀70年代至21世紀10年代,上虞城市用地擴展麵積和彊度在最初爆髮性增長後,保持高位穩定。城市緊湊度指數持續降低,城市分形維度在大幅下降後保持穩定,城市髮展日益複雜化,邊緣日益麯摺、破碎化。今後市政規劃建設應著力髮展建設城市用地邊緣離散麯摺之處,提高城市緊湊度,降低分形維度,從而提高城市區域市政服務職能效率。
채용지형도화MSS/TM,SPOT5위성요감수거,제취성시건성구범위,계산다충성시확전지수,연구분석료1976~2010년상우성시용지확전정황。연구발현,20세기70년대지21세기10년대,상우성시용지확전면적화강도재최초폭발성증장후,보지고위은정。성시긴주도지수지속강저,성시분형유도재대폭하강후보지은정,성시발전일익복잡화,변연일익곡절、파쇄화。금후시정규화건설응착력발전건설성시용지변연리산곡절지처,제고성시긴주도,강저분형유도,종이제고성시구역시정복무직능효솔。
In this study, topographic map and MSS/TM, SPOT5 satellite remote sensing data were used to extract the boundaries of urban land of Shangyu city .GIS technology with a measure of different urban expansion indexes gives a hand to analysis Shangyu urban land expansion .We have found that from the 1970 s to the 2010 s, Shangyu urban land had been expanding .The extension strength in-dex maintained a high stability after explosive growth in the early period .The city compact index was continually reducing while the urban sub-type dimension index remained stable after substantial decline .Urban areas have become increasingly complex while the boundaries have become tortuous and broken .Thus, future municipal planning and construction should be focus on urban compact and improving the efficiency of urban service functions .