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毛乌素沙地及周边地区的环境问题,一直受到学术界的关注。明代延绥镇土地利用方式及规模对毛乌素沙地南缘的影响及其程度,也成为重要研究内容。从军地类型、分布及数量,可以看出万历时期延绥镇屯垦有巨大发展。运用历史地理学的历史文献研究等方法,揭示了延绥镇近边垦地的利用格局,探明了明万历末年延绥镇36城堡草场地与军垦地分布及数量。万历年间延绥镇近边地区景观的时空特征主要是军事和地理环境共同决定的。万历末至崇祯年间,由于连年战乱及自然灾害,延绥近边垦地的农业生产遭受了毁灭性的破坏,抛荒率基本在90%以上。明军垦的发展对此阶段毛乌素沙地南移的影响不大,自然原因可能是毛乌素沙漠变迁的根本原因。
The environmental problems in the Mu Us Sandy and surrounding areas have always been the subject of academic concern. The influence and extent of land use and scale of Yansui Town in the Ming Dynasty on the southern edge of Mu Us desert have also become important research contents. From the types, distributions and quantities of military fields, it can be seen that there has been tremendous development in the settlement of Yansui Town in the Wanli Period. Using historical geography historical literature research and other methods to reveal the use of land near Yanbai reclamation land, proved Ming Wanli Yansui 36 castle grassland and reclamation land distribution and quantity. The spatial and temporal characteristics of the landscape in the vicinity of Yansui Town in Wanli were mainly decided by the military and the geographical environment. During the period from the end of Wanli to Chongzhen, due to years of war and natural disasters, the agricultural production in Yanbian near reclamation land suffered destructive destruction, and the rate of abandonment basically exceeded 90%. The development of Ming Army Reclamation has little effect on the southward migration of Mu Us Desert at this stage, which may be the natural reason for the change of Mu Us Desert.