作　　者： ; ;

机构地区： 四川省自然资源科学研究院

出　　处： 《地理科学》 2006年第5期574-579,共6页

摘　　要： 为揭示秦岭山地垂直带与土地利用之间的相互关系,文章基于2000年夏季卫星遥感影象和1∶25万DEM数据,采用目视解译的方式提取出秦岭南北坡的土地利用类型。将垂直带与土地利用进行叠加分析得出:秦岭山地林地占44.83%,草地占35.93%,耕地占18.42%。土地利用在垂直带上地空间分异显著,由基带往上耕地的比例呈指数关系减少,林地呈正抛物线变化,草地则与林地相反。在秦岭南北坡同一垂直带土地利用上也有明显的变化,特别体现在栓皮栎林带、锐齿栎林以及冷杉林带上。 As water tower for human kind in the 21st century, mountains and their resources and ecology have increasingly become the focus of many studies. The Qinling Mountains serves as the climate boundary between subtropical and warm-temperate zone in China. Its vertical belt structure is different between the northern slope and the southem slope, and the state and type of land use accordingly differ greatly. This article makes use of satellite images in summer of 2000 and 1：250000 digital elevation model （DEM） to acquire the data of land use types distribution on different vertical belts in order to disclose the interrelationship between montane vertical belt and land use. In Qinling Mountains 44.83% of the land is woodland, 35.93% is grassland and 18.42% is farmland. Land use change on different vertical belts is obvious. From the base belt to top, the proportion of farmland reduces to zero according to exponential curve, the woodland changes according to plus parabola and the grassland changes in inverse proportion to the woodland. Land use change on the same vertical belts is visible too, especially in Quercu variabilis forest, Q. aliena var. acutiserrata forest and Abies forest.

关 键 词： 岭 垂直自然带 土地利用 空间分异

领　　域： [经济管理]