摘要
泥石流最重度危险区内泥石流危害最重或危害能力强，论述了长江上游泥石流量重度危险区的泥石流形成条件，活动特征及发展趋势，总结了区内泥石流的防治现状，并提出了区内泥石流防治的原则和意见。
Debris flow harms the peopel’s lifes and ptoperty most seriously,or has the most destructive capability in the most catastrophic danger district of debris flow in the upper reaches of Changjiang River.The firming conditions,activty characteristics and developmental tendency ofdebris flow are discussed,the status quo of debris flow prevention is summed up,and some princi-ples and suggestions of debris flow prevention in the district are put forward. The natural danger degrees are A which is favourable to the most intense activity of debris flow of the district in most part and B which is favourable to intense activity of debris flow inlittle part. The economic developmental level is 4(low) in greater part of the district,3(middle)and 2 (subhigh)in a little part,and l(high)in little part. Debris flow gullies are dense , frequency is high,scale is great,and destructive power isstrong in the district.The favourable natural environmental conditions enliven debris flow activities. and human unreasonable economic activity stimulates debris flow occurrence further.Unified planning,puttin;the prevention first,combining prevention with control,preventingoverally, controlling major points,and combining civil engineering and biologic engineering arethe principles of debris flow control.
出处
《山地研究》
CSCD
1994年第2期94-98,共5页
基金
长江水利委员会水土保持局资助项目
关键词
长江上游
泥石流
危险区
upper reaches of Changjiang River,debris flow,most catastrophic danger district
