乌蒙山区人口与耕地垂直分布特征及其关系探讨

Analysis on Characteristics of Vertical Distributions of Population and Cultivated Land and Their Relationships in Wumeng Mountain Range

根据乌蒙山区基础地理数据和相关统计数据,分析了乌蒙山区人口和耕地的垂直分布特征以及二者的关系。结果表明:乌蒙山区人口与耕地垂直分布具有明显的相似性;人口主要集中在山区耕地面积较多中高海拔地区;随着社会经济发展和人口压力的增大,中高海拔地区人口耕地关系长期处于紧张状态,并逐渐向低海拔地区扩展;影响山区人口垂直分布的主要因素是耕地,海拔高程通过影响耕地面积来影响人口分布,随着海拔升高,人均耕地减少程度呈递减状态。

According to basic geographic data and related statistical data,This paper analyses the Characteris- tics of vertical distributions of population and cultivated Land and their relationships in Wumeng mountain range. The results shows that： vertical distribution of population and arable land in the Wumeng mountain range has an obvious similarity; the population mainly concentrates in the middle and high elevation range ar- ea which has a large number of cultivated lands. With the socio-economic development and increasing of pop- ulation pressure, the relationships between population and cultivated land are in long-term tensions in the mid- dle and high elevation area, and gradually extended to low elevation area; Cultivated land is the main factors which influencs vertical distributions of population. Elevation influencs the distributions by influencing cul- tivated land. With the increasing of elevation, per capita cultivated land reduction level is decreasing.