摘要
华南沿海地区全新世时期的气候在最温暖期大约比现在温度高出 1～ 2℃。许多钻孔揭示 ,在大约4 0 0 0～ 30 0 0aB .P .以来 ,华南沿海的气候环境发生了明显变化 ,包括气温下降、季节性降雨增强等 ,这些变化与中美洲的研究结果相对比 ,发现很可能与全球性的南方涛动增强有关。文章根据华南沿海新石器时期以来人类活动的特点 ,分析了自然环境变迁与沿海一带渔猎文化的兴衰 。
The mean annual temperature in the thermal maximum of Holocene in the South China was about 1 ～ 2℃ higher than that of the present day. Many investigations showed that a distinct climatic change occurred in coastal areas of the South China at 4 ～ 3kaB.P. The distinct character of this change are the decrease in temperature, increase in seasonality and stronger rainstorm in summer. Comparing with the high resolution result from the Cariaco Basin in northern Venezuela, the simultaneity of the climatic change in the two opposite tropical coasts of the Pacific Ocean indicates that the this event might be related to the increase in ENSO variability. The present paper analysed additionally the human impact on vegetation since the Neolithic age, discussed the rise and fall of the fishing-hunting culture and probed into the history of agricultural development and the disturbance of ecosystem.
出处
《第四纪研究》
CAS
CSCD
北大核心
2004年第4期387-393,共7页
Quaternary Sciences
基金
国家自然科学基金项目 (批准号 :40 3 3 10 11和 40 0 710 84)资助
关键词
华南沿海
全新世
气候变化
人类活动
coastal areas of South China, Holocene, climatic change, human impact
