摘要
秦岭是中国中部巨型的纬向山脉,是华北、华南重要的自然分界线,虽然秦岭的隆升问题取得重要进展,但在隆升的时间、幅度、速率等方面还存在分歧。对已有的研究成果作归纳论证,通过对渭河盆地的沉积响应研究后,提出有关秦岭隆升研究的新认识。在前人研究的基础上,对秦岭构造隆升的气候、灾害效应方面的成果作了论述,气候效应体现在气温和降水量变化两个方面,灾害效应包括水土流失、地震活动性以及地裂,认为秦岭的隆升是导致气候、灾害效应的根本原因。通过对气候和灾害效应的总结,为研究区未来灾害治理提供科学依据。
The Qinling mountains streches from east to west in the central part of China,and separates it into two parts:the North and the South,in geograph,geology and biology.Its large amplitude uplift has been one of the most striking geological events in eastern China since the Late Mesozoic. The uplifting problem of Qinling range has made progress,however, several aspects of the problem such as the uplifting time,the uplifting speed and the uplifting amplitude had differences of opinion among the researchers.The previous studies demostrated that the main large amplitude uplift has taken place in the Qinling mountains since the Cenozoic Era.This paper has stated several aspects of the research results about the uplift's amplitude and speed of Qinling range.According to the sedimentary response about the Cenozoic of the Weihe River basin, the author puts forward some results about the uplift of Qinling mountains.Based on the previous studies,this paper states the climatic and disatrous effects of the uplift in Qinling,the climatic effects reflect the fluctuations of air temperature and the variations of rainfall,the disatrous effects include soil erosion and water loss, earthquake and ground fissures in studied areas, also considered that the basic reason was the uplifting Qinling led to the climatic and disatrous effects.Through summing up the climatic and disatrous effects, it can provide scientific basis for the disaster control in the future.
出处
《西北地质》
CAS
CSCD
2005年第1期89-93,共5页
Northwestern Geology
基金
国家自然科学基金项目(40071006)
关键词
气候
水土流失
地震
秦岭山地
climate
soil erosion and water loss
earthquake
the Qinling mountains
