川西山区交通与GDP的海拔梯度性及其相关关系

发布时间：2018-03-28 05:23

本文选题：交通通达性　切入点：GDP　出处：《长江流域资源与环境》2017年04期

【摘要】：以西部山区的缩影川西为研究对象,利用交通矢量化数据和自然社会经济数据,在GIS软件支持下,探讨"十五"计划以来不同时期川西山区交通通达性与GDP的海拔空间分异性及其相关关系。结果表明:(1)2000~2013年间川西山区交通通达性有了显著提高,各县通达水平两级分化有所减弱,高值区集中于攀西城市群,低值区主要位于甘孜州;(2)川西山区GDP与交通水平均具有较为明显的海拔梯度分异,表现为中低海拔区中海拔区高海拔区高原区,呈现出"反自然梯度特征";(3)从整体上看,川西山区通达性指数与GDP存在显著正向关联且关联程度不断加强,交通主干线显现出更为明显的经济促进作用,而边缘化的地理区位不利于地区对外开放,阻滞了经济发展;(4)不同时期各海拔区交通通达性及其构成要素与GDP的关联方向和程度差异较大。
[Abstract]:The epitome of the mountain West Sichuan as the research object, using the traffic vector data and the natural and social economic data, under the support of GIS software, since the "fifteen" plan to explore the specificity and the relationship between the traffic in different periods in the mountain region and elevation of the GDP space. The results showed that: (1) during the period of 2000~2013 traffic in Western Sichuan area has been significantly improved, access to level two counties differentiation weakened, the high value area concentrated in the Panxi city group, low value areas are mainly located in the state of Ganzi; (2) GDP and the traffic level in the mountain region has obvious altitudinal gradient difference is high altitude plateau low altitude area altitude, showing a "anti natural gradient"; (3) on the whole, accessibility index and GDP in the mountain region has a significant positive association and correlation degree continuously strengthened, traffic trunk is showing a more obvious economic benefit However, the marginalized geographic location is not conducive to regional opening to the outside world, and hinders economic development. (4) there are great differences in the direction and degree of traffic accessibility and its constituent elements with GDP in different elevations.

【作者单位】：中国科学院水利部成都山地灾害与环境研究所;中国科学院大学;
【基金】：国家自然科学基金项目(41571523) 国家基础研究计划(973)(2013CBA01808)~~
【分类号】：F512.7;F127

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