大数据时代下西南山地环境变化的自然影响因素研究——基于小区域尺度的地形与坡向分析

A study of some natural factors of environmental changes in the mountainous areas of southwest China in the Big Data Era:A topographical and aspect-oriented study in local mountainous areas

大数据时代的到来为历史学研究带来了机遇和挑战,尤其是在历史文献资料较为缺乏的西南山区,如何获取丰富的数据资料进行科学研究成为摆在历史学研究者面前的一大难题。本文综合利用文献资料和田野调查等多学科方法,以及数据库和GIS等手段,以聚落为研究西南山地小区域环境变化的载体数据,获取了丰富的多源数据,创建了具有连续时间序列的流域聚落信息数据库,量化分析了自然因素中地形和坡向对山地环境变化的影响。研究认为,在掌鸠河流域,不同地形区对聚落空间演变和环境变化的影响具有明显的时间动态性,坡向的影响则并不显著。本文为大数据时代下综合利用多学科方法和多技术手段研究西南山地小区域环境变化提供了一个典型的案例参照。

The advent of the Big Data Era has brought both opportunities and challenges to historical studies, and historians have faced the serious problem of obtaining abundant data for scientific research while facing the scarcity in the historical litera-ture about the southwest mountainous areas of China. This research has obtained rich data from various resources throudisciplinary approaches such as historical geography and anthropology as well as the database and GIS, with the compact settle-ments as the data container, and created a seelement database of the mountainous basin with continuous time-series, and quan-titatively analyzes the topographical and aspect-oriented impacts on the environmental changes in the mountainous cludes that the topographical impacts on the settlements in terms of spatial evolution anobvious in the Zhangiu River Basin, while the aspect-oriented impacts are not significant. Thcance to the study of the environmental changes of the local mountainous areas in southwest Chmethods and multi-technical means in the Big Data Era.