基于RS和GIS的内蒙古阿荣旗耕地分布与立地条件分析

Farmland Distributes in Arong Banner of Inner Mongolia and Its Standing Condition Analysis Based on RS and GIS

利用遥感影像数据及地形图、气候图、侵蚀图、土壤分布图等图件和地力等级、行政界线等属性数据,在ARCview 3.3和ARCGIS 8.3软件的支持下,研究了阿荣旗耕地的立地条件.结果表明,阿荣旗的耕地以旱地为主,主要分布于旗东南部,且从东南向西北面积逐渐减少,耕地大部分位于其主分布区的北半部;阿荣旗耕地的坡度和砾石条件较好,分布的主要地形部位为丘岗顶部,成土母质以坡积物占绝对优势,随着积温的减少,耕地也随之减少.

By using RS image data, topographic maps, meteorological maps, erosive maps, soil distributing maps and capability grade,and administrative boundary as well, on the support of ARCview 3.3 and IS 8.3 software, site conditions of cultivated land of Arong Banner in Inner Mongolia was analyzed. The results showed that cultivated land there is mainly dry land and distribute on southeast, and decrease gradually from southeast to northwest, it focuses on north half part of the main distributing region; gradient and gravel condition of the cultivated land is better and mainly distribute on the top of hilly, the slope deposit is absolute advantage among cultivated land soil parent material; the cultivated land decreases with the decrease of accumulated temperature.