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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (17): 289-293.doi: 10.11924/j.issn.1000-6850.2013-2465

所属专题： 资源与环境； 耕地保护

• 农业科技信息 • 上一篇    下一篇

GIS支持下可利用土地资源研究——以庆阳市为例

王丽丽 王永刚 盖艾鸿   

  • 收稿日期:2013-09-17 修回日期:2013-10-25 出版日期:2014-06-14 发布日期:2014-06-14

Available Land Resources Research Under the GIS Support: A Case Study of Qingyang City

  • Received:2013-09-17 Revised:2013-10-25 Online:2014-06-14 Published:2014-06-14

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摘要： 为了研究庆阳市可利用土地资源的数量、质量以及空间分布状况，运用GIS空间分析技术，对土地利用现状图、高程数字模型图、坡度分级图进行空间叠加，计算出庆阳市可利用土地资源的面积，并运用SPSS软件进行丰度分级。结果表明：庆阳市的可利用土地资源的面积3848.61 km2，人均可利用土地资源面积0.14 hm2/人。可利用土地资源相对较丰富，但各个县区分布不均衡，可利用土地资源质量欠佳，土地利用的制约因素较多，难度较大。

关键词: 萌发特性, 萌发特性

Abstract: In order to study the number, quality and spatial distribution of available land resources of Qingyang City, the author used GIS spatial analysis techniques to lay over the current land use maps, elevation digital model diagram, slope grading spatial, calculated the available land resources in Qingyang City, and used SPSS to abundant graded. The results showed that: the available resources land area of Qingyang City was 3848.61 km2, the per capita area of land resources available was 0.14 hm2/person. The available land resources were relatively abundant, but each county distribution was uneven, the quality of available land resources was poor, the restriction factors of land use were more and difficult.