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
2014年
9期
149-155
,共7页
肖捷颖%李星%季娜%于柳溪
肖捷穎%李星%季娜%于柳溪
초첩영%리성%계나%우류계
景观格局变化%景观指数%城市扩展%景观扩张指数%遥感%地理信息系统
景觀格跼變化%景觀指數%城市擴展%景觀擴張指數%遙感%地理信息繫統
경관격국변화%경관지수%성시확전%경관확장지수%요감%지리신식계통
landscape types change%city expansion%landscape expansion index%remote sensing%GIS
城市化过程通过改变地表景观结构而改变城市环境质量，因此研究城市景观格局及其变化具有重要意义。以石家庄市为例，基于遥感、GIS和Fragstats软件分析景观类型特征及变化。结果表明，研究时段内除农田植被和低密度不透水面面积及比例减少外，其余景观类型呈扩张趋势，高密度不透水面扩展最快。低、中密度不透水面景观边界复杂化，内部复杂斑块比例减小；高密度不透水面边界简单、内部斑块复杂、连通性增强；未利用地边界复杂，斑块团聚；城市植被和水体形状变化不显著，聚集程度上升，但连通性变化相反。扩张景观类型的扩张指数大小顺序为：高密度不透水面，未利用地，城市植被，水体和中密度不透水面。
城市化過程通過改變地錶景觀結構而改變城市環境質量，因此研究城市景觀格跼及其變化具有重要意義。以石傢莊市為例，基于遙感、GIS和Fragstats軟件分析景觀類型特徵及變化。結果錶明，研究時段內除農田植被和低密度不透水麵麵積及比例減少外，其餘景觀類型呈擴張趨勢，高密度不透水麵擴展最快。低、中密度不透水麵景觀邊界複雜化，內部複雜斑塊比例減小；高密度不透水麵邊界簡單、內部斑塊複雜、連通性增彊；未利用地邊界複雜，斑塊糰聚；城市植被和水體形狀變化不顯著，聚集程度上升，但連通性變化相反。擴張景觀類型的擴張指數大小順序為：高密度不透水麵，未利用地，城市植被，水體和中密度不透水麵。
성시화과정통과개변지표경관결구이개변성시배경질량，인차연구성시경관격국급기변화구유중요의의。이석가장시위례，기우요감、GIS화Fragstats연건분석경관류형특정급변화。결과표명，연구시단내제농전식피화저밀도불투수면면적급비례감소외，기여경관류형정확장추세，고밀도불투수면확전최쾌。저、중밀도불투수면경관변계복잡화，내부복잡반괴비례감소；고밀도불투수면변계간단、내부반괴복잡、련통성증강；미이용지변계복잡，반괴단취；성시식피화수체형상변화불현저，취집정도상승，단련통성변화상반。확장경관류형적확장지수대소순서위：고밀도불투수면，미이용지，성시식피，수체화중밀도불투수면。
Landscape change in Shijiazhuang has been analyzed based on two scenes of Landsat 5 TM satel-lite images recorded on 1987 and 2010 .Images have been classified into seven landscape types and been cal-culated landscape area and their percentage for describing landscape characteristics and change detection . Class level landscape metrics and landscape expansion metrics have been calculated ,and the most appropri-ate landscape metrics been selected by principal component analysis .Results show that 1) only cropland and low density impervious surface area has decreased during this period ,and high density impervious sur-face is the major landscape type in 2010 instead of cropland in 1987 ;2) all landscape types transferred to high density impervious surface to various certain extents ;3) landscape boundary status of low and middle density impervious surface has become complex and the proportion of internal complex patches reduced , and high density impervious surface had simple landscape boundary ,complicated internal patches and en-hanced connectedness ,and landscape boundary complexity and patches agglomeration of unexploited land increased ,the shape of green space and water body has not remarkable change but the aggregation degree increased ,they have contrast changing in connectedness ;4) at last ,expansion ranking of five expanded landscapes is high density impervious surface >unexploited land>green space>water body>middle densi-ty impervious surface .
