| 白龙江流域全新世泥石流与环境演变的初步研究 |
| |
| 引用本文： | 王建力,王勇,师玉娥.白龙江流域全新世泥石流与环境演变的初步研究[J].西南师范大学学报(自然科学版),2000,25(4):452-456. |
| |
| 作者姓名： | 王建力 王勇 师玉娥 |
| |
| 作者单位： | 西南师范大学资源与环境科学学院, 重庆 400715 |
| |
| 摘 要： | 根据黄土－古土壤沉积序列研究和野外考察资料并结合放射性＾１４Ｃ测年，初步确定嘉陵江上游白龙江流域全新世泥石流共分三期，时代分别为７０００－６０００ａＢＰ、４０００ａＢＰ和２０００ａＢＰ。研究表明，泥石流频繁爆发于古气候由寒冷向温暖转换的波动时期。
|
| 关 键 词： | 泥石流 全新世 环境演变 青藏高原 白龙江流域 |
| 文章编号： | 1000-5471(2000)04-0452-05 |
| 修稿时间： | 2000年3月20日 |
A preliminary study on debris flow and environmental evolution in Holocene at the Bailongjiang River Valley |
| |
| WANG Jian\|li,WANG Yong,SHI Yu\|e.A preliminary study on debris flow and environmental evolution in Holocene at the Bailongjiang River Valley[J].Journal of Southwest China Normal University(Natural Science),2000,25(4):452-456. |
| |
| Authors: | WANG Jian\|li WANG Yong SHI Yu\|e |
| |
| Abstract: | Six typical Holocene debris flow sections were studied in detail at the Bailongjiang River system, which is located in the eastern margin of Qinghai-Xizang Plateau. Based on the stratigraphy of loess-paleosol sequences,\ \{14\}C datings and debris flow deposition, the evolution of debris flow in Holocene can be divided into three stages, which are around 7 000 aBP to 6 000 aBP, 4 000 aBP and 2 000 aBP respectively. The debris flow erupted frequently at the shift of relative cold climate to warm climate. |
| |
| Keywords: | Debris flow Holocene Environmental change Qinghai\|Xizang plateau |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西南师范大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《西南师范大学学报(自然科学版)》下载免费的PDF全文 |
