| 长江三峡大宁河流域3000年来的环境演变与人类活动 |
| |
| 引用本文： | 张芸,朱诚,于世永.长江三峡大宁河流域3000年来的环境演变与人类活动[J].地理科学,2001,21(3):267-271. |
| |
| 作者姓名： | 张芸 朱诚 于世永 |
| |
| 作者单位： | 南京大学城市与资源学系, |
| |
| 基金项目： | 国家自然科学基金项目 (批准号 :40 0 710 83)，高校博士点基金 ( 2 0 0 0 0 2 8414 )，南京大学“985”国家重点学科自然地理创新项目，南京大学海岸海岛开放实验室基金，南京大学现代分析中心基金 |
| |
| 摘 要： | 长江三峡大宁河流域张家湾东周-汉代古遗址的孢粉学和沉积学等分析结果表明3000年来该区环境演变与人类活动的互动影响，连续的孢粉和粒度记录证实，该区古人类活动初期处于暖湿的气候，东周-汉代时期转变为温凉略干的温带气候，东周-汉代后，该区经历了一次规模较大的大宁河洪水泛滥期，导致汉代文化层中断。此后不久，由于人类活动剧烈，自然植被严重破坏，水土流失比较严重，山洪灾害频繁，导致汉代之后该区没有连续的文化层堆积，而由于人类活动剧烈，自然植被严重破坏，水土流失比较严重，山洪灾害频繁，导致汉代之后该区没有连续的文化层堆积，而由于短暂洪水暴发引起大面积坡面片流，导致坡积物的大量堆积，汉代之后该区频繁的兴涝灾害和山洪灾害体现了人地关系的复杂性。
|
| 关 键 词： | 长江三峡 大宁河流域 张家湾古遗址 环境演变 人类活动 孢粉学 沉积学 粒度 |
| 文章编号： | 1000-0690(2001)03-0267-05 |
Environmental Evolution and Human Activity over 3000 years in Daning Valley, the Three Gorges of Changjiang River |
| |
| ZHANG Yun,ZHU Cheng,YU Shi yong.Environmental Evolution and Human Activity over 3000 years in Daning Valley, the Three Gorges of Changjiang River[J].Scientia Geographica Sinica,2001,21(3):267-271. |
| |
| Authors: | ZHANG Yun ZHU Cheng YU Shi yong |
| |
| Abstract: | Palynology and sedimentology research on Zhangjiawan site in Daning valley, the Three Gorges of Changjiang River during East Zhou to Han Dynasties show the relation between environment evolution and human activity in this region over 3000 years There was warm humid climate when man dwelled on this place at first During East Zhou to Han Dynasties there were warm cold and a little arid climate After this stage,a transient large scale deluge took place in this area After that,human activity became more active, natural plants were destroyed severely, water and soil lost largely, and mountain torrent became frequent which resulted in that there weren't continuous cultural fault after Han dynasty But a lot of debris talus materials were accumulated resulting from mountain torrent |
| |
| Keywords: | The three Gorges of Changjiang River Daning valley Zhangjiawan site Environmental evolution Human activity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
