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宋代长江沿线的生态环境移民是一个值得关注的环境史学问题。从原因层面看,气候、水域、土地等是其出现大规模生态环境移民的主要诱因。宋代长江沿线的生态环境移民主要发生在南宋时期,在迁入地区和人口迁出方面都呈现出某种独特性,其中两淮、荆湖北路、荆湖南路、川峡四路等是主要迁入区域;而人口迁出形式主要有政府行为和自主行为两种,且以自主迁移为主,其迁出目的多为寻求可耕地和获得新的生存空间。与之同时,生态环境移民也给宋代长江沿线的生态环境带来了一些影响,如土地的垦殖、湖泊的萎缩、生态面貌的改变等,都与生态环境移民密切相关。
Ecological Environment along the Yangtze River in Song Dynasty Immigrants are a noteworthy issue of environmental historiography. From the aspect of reason, climate, water area and land are the main inducement for large-scale ecological immigration. The ecological environment along the Yangtze River in the Song Dynasty immigrants occurred mainly in the Southern Song Dynasty, immigrants in the area and population have shown some unique characteristics, including the two Huai, Jinghu North Road, Jinghu South Road, Sichuan Gap Road is the main move Into the region; and the form of population migration mainly has two kinds of government behavior and autonomous behavior, and mainly to independent migration, its purpose of moving out mostly to seek arable land and access to new living space. At the same time, the resettlement of ecological environment also brought some impacts on the ecological environment along the Yangtze River in the Song Dynasty. For example, reclamation of land, shrinking of lakes and change of ecological landscape are all closely related to ecological immigration.