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中国沙漠 ›› 2010, Vol. 30 ›› Issue (5): 1166-1173.

• 生物土壤与生态 • 上一篇    下一篇

基于RS和GIS的艾比湖区域景观格局动态变化研究

谢 霞1,2, 王宏卫1,2,3, 塔西甫拉提·特依拜1,2*   

  1. 1.新疆大学 资源与环境科学学院, 新疆 乌鲁木齐 830046; 2.新疆大学 绿洲生态教育部重点实验室, 新疆 乌鲁木齐 830046; 3.新疆大学 理论经济学博士后科研流动站, 新疆 乌鲁木齐 830046
  • 收稿日期:2010-01-07 修回日期:2010-03-09 出版日期:2010-09-20 发布日期:2010-09-20

Study on Landscape Pattern Change in Ebinur Lake Region based on RS and GIS

XIE Xia1,2, WANG Hong-wei1,2,3, TASHPOLAT·Tiyip1,2   

  1. 1.College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China; 2.Key Laboratory of Oasis Ecology (Ministry of Education), Xinjiang University, Urumqi 830046, China; 3.Postdoctoral Research Station of Theoretical Economics, Xinjiang University, Urumqi 830046, China
  • Received:2010-01-07 Revised:2010-03-09 Online:2010-09-20 Published:2010-09-20

摘要: 以生态环境脆弱的艾比湖区域为研究对象,基于1990、2001年和2007年3期Landsat TM/ETM+遥感数据资料,采用支持向量机(SVM)方法,进行景观分类与制图,利用ArcGIS制作了艾比湖区域的景观类型转移矩阵及转移过程空间格局图,定量研究了艾比湖区域1990—2007年景观格局的时空变化特征,同时分析了景观类型转入/转出贡献率。结果表明:①在整个研究时段内耕地的面积在不断增加,其中2001—2007年间耕地的年平均变化率为6.79%。未利用地的面积有所减少。②在转入和转出过程中,耕地和草地之间的转化比较明显;城乡建设用地的增加,主要是由耕地和未利用地转化而来的;生命支持能力脆弱的未利用地与草地之间的转换较为密切。③绿洲景观有整体向东迁移的趋势;林地在2001—2007年间迁移的距离最远,为6.1450 km。④景观类型转入贡献率占优势的为耕地,转出贡献率占优势的为未利用地。

关键词: 艾比湖, 景观动态, 重心, 景观类型转入/转出贡献率

Abstract: In order to analyze the spatial and temporal change of landscape pattern in Ebinur lake region, the authors made landscape classification and mapping in this area using Support Vector Machine (SVM) based on the remote sensing data of Landsat TM and ETM+ in 1990, 2001 and 2007, and made the landscape transformation matrix and landscape transformation map during 1990—2001 and 2001—2007 using ArcGIS software, also calculated the contribution rate of conversion-in landscape types and conversion-out ones. The results showed that: (1) The area of cultivated land increased constantly from 1990 to 2007, and unused land decreased. (2) The transformation between cultivated land and grassland was very significant, and the increase of built land came mainly from cultivated land and unused land, and the transformation between unused land and grassland was also significant. (3) The transfer direction of oasis barycenter was east from 1990 to 2007, and the transfer distance of forest barycenter was the longest from 2001 to 2007, with the distance of 6.1450 km. (4) The largest contribution of conversion-in landscape types came from cultivated land, and the largest contribution of conversion-out landscape types came from unused land.

Key words: Ebinur Lake, landscape change, barycenter transfer, contribution of conversion-in and conversion-out landscape types

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