MODS格局下生态景观信息图谱的建立

Establishment of Ecological Landscape Informatic TUPU under the Pattern of MODS

干旱区山地—绿洲—荒漠系统(MODS)的结构与功能,是认识干旱区生态过程、揭示生态规律的重要基础。生态景观信息图谱作为地学信息图谱的重要研究方向,MODS为进行干旱区MODS生态景观格局变化机理的研究拓展了新的途径。利用2000年Landsat TM及2005年CBERS-2 CCD影像数据作为主要信息源,综合各种属性数据和统计资料,在GIS软件平台上,进行模式识别、专题分类、图谱表达,利用GIS的空间分析功能建立吐鲁番山地景观、绿洲景观及荒漠景观类型变化信息图谱,并创立属性数据库。以遥感和DEM数据为基本数据,结合生态景观特征进行生态景观类型划分;发挥了多元数据在建立生态信息图谱中的作用;设计并实现了景观生态信息图谱,凝练出了图谱模式;并从地学图谱的角度分析了MODS生态景观要素时空变化特征。

The structure and function of Mountainous-Oasis-Desert System （MODS） is the basis of understanding ecological laws and ecological process. As one of the hot spots in Geo-informatic TUPU, Informatic TUPU of ecological landscape develops a new way for pattern changes of ecological landscape of MODS in arid zone. In order to set up the informatic TUPU of mountainous landscape,oasis landscape and desert landscape,attribute data and statistic data also including the images of Landsat TM in 2000 and CBERS-02 CCD in 2005 are used, as well as the mode recognization, thematic classification and TUPU expression based on GIS. Furthermore,the attribute database is built up,based on remote sensing and DEM data and integrated with ecological landscape characteristics ecological landscape classification. Meanwhile, using thematic mapping of landscape,function of multi-data on setting up the ecological information TUPU was also bring in. As a result, the TUPU mode of ecological Landscape is designed and the spatial and temporal characteristics of MODS are analyzed based on the informatic TUPU.