摘要
对小江中下游近90km河床及两岸泥石流进行了调查研究。得到:泥石流输沙年际和季节变化大;泥石流高强度的输沙造成小江河床特殊的平面和剖面特征;泥石流堵塞小江河道,对纵比降有再造作用;泥沙使小江河床以年均20cm～50cm速度抬升。
An investigation is conducted into the riverbed and debris flows along both sides of the Xiaojiang River for about 90 km in its middle and lower reaches It shows that debris flow transportation changes greatly with year and season High intensity debris flow transportation results in peculiar riverbed plane and sections Damming the riverway by debris flow leads to rebuilding of ratiofall of the River The riverbed is averagely uplifted by 20 cm^50 cm a year
出处
《灾害学》
CSCD
2003年第2期7-11,共5页
Journal of Catastrophology
基金
国家自然科学基金项目资助(49831010
49971012)
关键词
泥石流输沙
河床演变
小江
Debris flow transportation
riverbed development
Xiaojiang River
