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生态学杂志 ›› 2005, Vol. ›› Issue (9): 1033-1037.

• 研究报告 • 上一篇    下一篇

基于遥感数据的晋陕蒙交汇区景观格局定量分析——以东胜幅1/25万TM影像分析为例

李团胜   

  1. 长安大学地球科学与国土资源学院, 西安, 710054
  • 收稿日期:2004-03-12 修回日期:2004-07-15 出版日期:2005-09-10
  • 基金资助:
    国家自然科学基金重点项目(90102004);陕西省科学计划项目(2002D06);陕西省教育厅专项科研基金资助(01jk113、03jk192)

A quantitative analysis of the landscape pattern of the juncture of Shaanxi,Shanxi and Inner Mongolia based on remotely sensed data──A case study of Dongsheng sheet TM image

LI Tuansheng   

  1. College of Earth Science and Land and Resources, Chang'an University, Xi'an 710054, China
  • Received:2004-03-12 Revised:2004-07-15 Online:2005-09-10

摘要: 以1996年8月份东胜幅1/25万TM影像数据为例,借助Arc/Info和Arc/view软件,对其景观进行了分类,并形成景观分类图,共分为9类景观类型。用景观格局分析软件FRAGSTATS计算了各类景观参数,并从斑块、类型和景观3个水平上计算了相应的参数和景观指数,定量地揭示了整个景观格局与类型特征。并构建了反映景观破碎化程度的一个指数———斑块密度指数(PD2)。

关键词: 鼎湖山, 演替群落, 凋落物, 水分特征

Abstract: The juncture of Shaanxi,Shanxi and Inner Mongolia is a typical ecotone which has always been the hot area of desertification research.We classified the landscape into 9 types,including farmland,grassland,forestland,sandy land,saline alkali land,rock,city and town,water,and flood land.Applying the spatial pattern analysis software FRAGSTATS of the vector version,we calculated a set of landscape indices,corresponding to the three scale levels of patch,class and landscape.At patch level,the forestland(patch id 320) showed the smallest shape index (1.05) indicating a simple shape in this case,whereas the grassland (patch id 14) had the largest shape index(35.62) showing the most noncircular( i.e.,most complex) shape.The fractal dimension (FD=1.21) also revealed the simple shape of the former patch type.At class level,we found that the LPI,AWMPFD,PSSD,ED,TE-WGT,CEWD,TE,MPS,and AWMSI of the grassland,which make up 73.796% of the total area,were larger than those of other landscape types,indicating that this landscape type dominated the total landscape,with the complex shape indicating strongly interrupted.The number of farmlan[JP2]d was the largest,with the second area,the largest PD and LSI,and larger PSCV, showing that the farmland had a gathering characteristic of large patch,with complex shape indicating influenced strongly by human.In could be concluded that landscape pattern indices could be used in characterizing the spatial pattern of the studied area.

Key words: Dinghushan, Succession community, Litter, Water characteristics

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