| 基于MAPGIS的地貌类型划分方法研究 |
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| 引用本文： | 张雪梅,周维娜,董廷旭.基于MAPGIS的地貌类型划分方法研究[J].绵阳师范学院学报,2011,30(11). |
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| 作者姓名： | 张雪梅 周维娜 董廷旭 |
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| 作者单位： | 绵阳师范学院资源环境信息技术重点实验室,四川绵阳,621000 |
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| 摘 要： | 地貌分类研究是县域国土资源数据库建设的基础工作，传统的定性分类划分方法已不能满足基础地理数据库建设及其信息服务的要求。该文在地理信息系统平台软件MAPGIS的支持下，以1/5万地形图H-48-18-D为例，探讨DEM模型、矢量地势图和坡度图的生成途径，然后在此基础上采用空间叠加分析和空间邻域归并方法将实验区地貌类型划分为平坝、台地、浅丘和高丘四种地貌类型，为构建区域基础地理信息数据库提供地貌类型划分定量化方法。
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| 关 键 词： | MAPGIS 地貌类型 DEM 空间叠加分析 空间邻域归并 |
On Methods of Landform Type Division Based on MAPGIS |
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| Abstract: | Topography of the right type of differentiation is important for regional development planning based on geographic data, the traditional qualitative classified division method has not been able to satisfy the basic geographic information system construction and the information service request. This article, with the support of geographic information system platform software MAPGIS, using 1 ： 50000 topographic diagram H - 48 - 18 - D as the main data, to discuss the approach to realize DEM, the topography chart and the slope chart production in the DEM model foundation, and then dividing the experimental plot landform type. The result shows： the experiment type area may be divided into four types of landform, dam, terrace, shallow earthen mound, and deep earthen mound, take the terrace and the shallow earthen mound as the main landform type, assumes the laminated uniform distribution in the entire district. The deep earthen mound landform accounts for the proportion to be small, assumes the punctual distribution in the entire district. Through to the landform type division method~ exploration, will provide the basis in the future landform for the deep local agricultural plan, the urban planning, the soil erosion, the geological disaster analysis and the forecast. |
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| Keywords: | MAPGIS landform type division digital elevation model （DEM） analysis of space composition space merge |
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