明清时期粮食作物的引入和传播——基于甘薯的考察

Crops Introduction and Spreading in Ming and Qing Dynasties

新引进的物种凭借其生态适应能力强,繁殖能力强,传播能力强等特点抢夺其他生物的生存空间,破坏生态平衡,对当地生态环境造成了长期的不利影响。以甘薯为例,从探究甘薯的来源及传入途径、性状和功用等入手,分析明清时期粮食作物引进的现实意义和深远影响。

In Ming and Qing dynasties many new crops spread to China. The ecological adaptability, reproductive capacity and communicativetence of new species were strong. So they robbed other living thing＇ existing space. They also destructed the ecological equilibrium, and had long-term adverse effect on the local ecological environment. Taking the sweet potato as an example, the practical significance and the profound influence of the grain crops＇ introduction in Ming and Qing dynasties were discussed based on the analysis of the origin, spreading way, character and function of the sweet potato.