测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
GEOMATICS & SPATIAL INFORMATION TECHNOLOGY
2014年
11期
98-100
,共3页
富宁县%SRTM DEM%均值变点法%地形起伏度%地貌形态
富寧縣%SRTM DEM%均值變點法%地形起伏度%地貌形態
부저현%SRTM DEM%균치변점법%지형기복도%지모형태
Funing county%SRTM DEM%relief amplitude%change point method%landform digital classification
以位于云贵高原至广西丘陵倾斜面上的云南省富宁县为研究区,提出了适合研究区地形特点的地貌形态分类指标体系;基于 SRTM DEM 90 m 分辨率的地形数据,用均值变点分析法,确定8像元×8像元(0.5184 km2)的格网为该县地形起伏度的最佳统计单元,据此提取了该县地形起伏度(0~707 m);最后,叠加分析了该县绝对海拔和地形起伏度数据,得到12种基本地貌形态,并得出结论:小起伏较低山、小起伏中山是该县最主要的地貌形态。
以位于雲貴高原至廣西丘陵傾斜麵上的雲南省富寧縣為研究區,提齣瞭適閤研究區地形特點的地貌形態分類指標體繫;基于 SRTM DEM 90 m 分辨率的地形數據,用均值變點分析法,確定8像元×8像元(0.5184 km2)的格網為該縣地形起伏度的最佳統計單元,據此提取瞭該縣地形起伏度(0~707 m);最後,疊加分析瞭該縣絕對海拔和地形起伏度數據,得到12種基本地貌形態,併得齣結論:小起伏較低山、小起伏中山是該縣最主要的地貌形態。
이위우운귀고원지엄서구릉경사면상적운남성부저현위연구구,제출료괄합연구구지형특점적지모형태분류지표체계;기우 SRTM DEM 90 m 분변솔적지형수거,용균치변점분석법,학정8상원×8상원(0.5184 km2)적격망위해현지형기복도적최가통계단원,거차제취료해현지형기복도(0~707 m);최후,첩가분석료해현절대해발화지형기복도수거,득도12충기본지모형태,병득출결론:소기복교저산、소기복중산시해현최주요적지모형태。
Funing County of Yunnan Province , located between the transitional zone from Yunnan-Guizhou Plateau to Guangxi Hill area , based on the SRTM DEM 90m data, the mean change point was used to determine the best window for extracting the relief am -plitude of Funing County is 8 ×8 cells(0.518 4 km2 ); by overlaying the classification of the elevation and the relief amplitude , twelve types of land geomorphology in Funing County were got , and the two major categories of the landform were the relatively low mountains with small relief , middle mountains with small relief , occupying 50%of the total area .Finally, the existing problems and further research were discussed .