历史时期气候变化对西北地区竹林分布的影响

Influence of climate change of historic periods on bamboo distribution in northwestern areas

历史时期中国气候经历了冷暖相间的几度波动变化,对竹林的生长也发生了很大影响,西北地区竹林的分布范围也随气候的波动发生了变迁。竹林分布总体上来看是逐渐南移,汉唐时期其作为重要的经济作物,元代以后其经济作物的地位已变得不十分重要。本文分仰韶温暖、先秦、秦汉魏晋六朝、隋唐五代、宋元、明清等时期,论述了气候变化对西北地区竹林分布的影响。

In the history, China has experienced a series of fluctuation of warmand cold. Exert a great influence of the bamboo grow. The distribution of bamboo forests has undergone a series of changes in northwest area. General trend the distribution of bamboo forests has gradually moving south. One has important industrial crop of Han and Tang Dynasties. Lose position of industrial crop of Yuan Dynasty later. This paper expound influence to the distribution of bamboo forests to climate change in northwest area of the Yang Shao warm period, Xin Qin, Qin, Han, Wei, Jin, Liu Chao, Sui and Tang five Dynasties, Song,Yun, Ming and Qing Dynasties.