交通可达性对青藏铁路沿线地区农牧户生计转型的影响机理研究

交通可达性是农牧地区生计转型的关键要素，研究交通可达性对农牧户生计转型的影响，探究作用路径与机理，对生态脆弱地区微观层面人地关系协调发展具有重要意义。本项目选择青藏铁路沿线地区为研究区，以“理论与方法构建—过程测度—影响机理—政策分析”为研究主线，在确定基于个人层面交通可达性表征方式、测度模型的基础上，聚焦于宏观交通发展对微观交通可达性时空变化规律、农牧户生计转型过程及特征，探究交通可达性在农牧户生计转型中的影响与作用，揭示微观层面交通可达性对生计转型的过程及机理，提出青藏高原交通发展与农牧家庭可持续发展的政策途径。通过本项目的研究，有利于丰富生态脆弱地区人地关系演进，特别是交通发展与农牧户生计转型的理论框架与研究体系，更有助于揭示高原地区交通发展的社会经济效应，为持续巩固与提升脱贫攻坚成果、实现农牧地区乡村振兴、高质量发展与高品质生活提供科学支撑与政策途径。

Transport accessibility is the key element of livelihood transition in agricultural and pastoral areas. It is of great significance to study the impact of transport accessibility on livelihood transition of farming and grazing households, and explore the path and mechanism of action for the coordinated development of human-land relationship at the micro level in ecologically fragile areas. The project selects the areas along the Qinghai-Tibet Railway as the research area, and takes "theory and method construction - process measurement - impact mechanism - policy analysis" as the main research line. On the basis of determining the representation mode and measurement model of transport accessibility based on individual level, the project focuses on the spatiotemporal variation law of macro traffic development on micro transport accessibility and the livelihood transition process and characteristics of farming and grazing households. Then, the project explores the impact and role of transport accessibility in the livelihood transition of farming and grazing households, reveals the process and mechanism of transport accessibility on the livelihood transition at the micro level, and puts forward policy approaches for the sustainable development of transportation development and farmers and herdsmen in the Qinghai-Tibet Plateau. The research of this project is conducive to enriching the evolution of human-land relationship in ecologically fragile areas, especially the theoretical framework and research system of transportation development and the livelihood transition of farming and grazing households. It is also helpful to reveal the socio-economic effects of transportation development in plateau areas, and is sustainable consolidate and improve the results of poverty alleviation, realize rural revitalization, high-quality development and high-quality life in agricultural and pastoral areas to provide scientific support and policy approaches.