西南师范大学学报（自然科学版）
西南師範大學學報（自然科學版）
서남사범대학학보（자연과학판）
JOURNAL OF SOUTHWEST CHINA NORMAL UNIVERSITY
2010年
1期
150-157
,共8页
轨道交通%景观格局%空间分异
軌道交通%景觀格跼%空間分異
궤도교통%경관격국%공간분이
light railway%landscape pattern%spatial differentiation
在RS和GIS的支持下,运用景观生态学原理,利用重庆市1986年、2000年Landsat TM遥感影像资料和2007年中心城区用地现状图作为信息源,选取破碎化指数、多样性指数等4项景观指数,对重庆市城市轨道交通2号线沿线2km范围内景观格局变化进行定量分析.同时运用缓冲区分析方法,沿2000年和2007年轨道交通以0～0.5 km,0.5～1 km,1～1.5 km,1.5～2 km建立双侧缓冲区,提取住宅用地、城市水域、商服用地、工业用地、公园绿地5种重要景观要素信息,通过计算各缓冲区内各项要素的景观指数,分析重庆轨道交通2号线沿线景观类型的空间分异状况.结果表明,轻轨2号线建设对住宅用地和工业用地表现出较强的吸引效应,景观破碎化指数趋于减小,空间集聚不断加强;商服用地破碎化指数、景观形状指数和分维数随着缓冲区距离增大呈现降低趋势;公园绿地分维数和形状指数较低且变化不明显;城市水域景观形状较简单,稳定性强.
在RS和GIS的支持下,運用景觀生態學原理,利用重慶市1986年、2000年Landsat TM遙感影像資料和2007年中心城區用地現狀圖作為信息源,選取破碎化指數、多樣性指數等4項景觀指數,對重慶市城市軌道交通2號線沿線2km範圍內景觀格跼變化進行定量分析.同時運用緩遲區分析方法,沿2000年和2007年軌道交通以0～0.5 km,0.5～1 km,1～1.5 km,1.5～2 km建立雙側緩遲區,提取住宅用地、城市水域、商服用地、工業用地、公園綠地5種重要景觀要素信息,通過計算各緩遲區內各項要素的景觀指數,分析重慶軌道交通2號線沿線景觀類型的空間分異狀況.結果錶明,輕軌2號線建設對住宅用地和工業用地錶現齣較彊的吸引效應,景觀破碎化指數趨于減小,空間集聚不斷加彊;商服用地破碎化指數、景觀形狀指數和分維數隨著緩遲區距離增大呈現降低趨勢;公園綠地分維數和形狀指數較低且變化不明顯;城市水域景觀形狀較簡單,穩定性彊.
재RS화GIS적지지하,운용경관생태학원리,이용중경시1986년、2000년Landsat TM요감영상자료화2007년중심성구용지현상도작위신식원,선취파쇄화지수、다양성지수등4항경관지수,대중경시성시궤도교통2호선연선2km범위내경관격국변화진행정량분석.동시운용완충구분석방법,연2000년화2007년궤도교통이0～0.5 km,0.5～1 km,1～1.5 km,1.5～2 km건립쌍측완충구,제취주택용지、성시수역、상복용지、공업용지、공완록지5충중요경관요소신식,통과계산각완충구내각항요소적경관지수,분석중경궤도교통2호선연선경관류형적공간분이상황.결과표명,경궤2호선건설대주택용지화공업용지표현출교강적흡인효응,경관파쇄화지수추우감소,공간집취불단가강;상복용지파쇄화지수、경관형상지수화분유수수착완충구거리증대정현강저추세;공완록지분유수화형상지수교저차변화불명현;성시수역경관형상교간단,은정성강.
Supported by remote sensing (RS) and geographical information system (GIS) and based on the theory of landscape ecology, the landscape pattern along Chongqing UMT Line 2 was analyzed using the TM images in 1986 and 2000 and the land--use map of the urban area of Chongqing City in 2007. Mean plaque area, landscape fragmentation index, and index and fractal dimension were chosen to present a quantitative analysis of the spatial heterogeneity of Chongqing UMT Line 2. By buffer spatial analysis of 0 -0.5 km, 0.5-1 km, 1-1.5 km and 1.5-2 km of Chongqing UMT Line 2 in 2000 and 2007, residential land, city water body, land for commercial use, industrial land and green space were extracted as five im-portant elements of the landscape. By calculating landscape indices of these five elements, the spatial dif-ferentiation of the landscape pattern of Chongqing UMT line 2 was displayed. The results showed that during the period from 1986 to 2007, Chongqing UMT Lifie 2 exerted a strong effect of attraction on resi-dential land and industrial land. Landscape fragmentation index tended to decrease. Space concentration was steadily strengthened. Landscape fragmentation index, landscape shape index and fractal dimension of land for commercial use showed a decreasing trend with increasing distance of the buffering area from Chongqing UMT Line 2. Landscape shape index and fractal dimension of green space were relatively low and did not change significantly. The shape of city water body was simple and its stability was good.
