| 广东沿海陆地表层地质灾害控制因素分析 |
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| 关键词:geological hazards geological environment climate human activity Guangdong coast |
| 基金项目:广东省“九五”重大科技攻关项目“广东沿海地质环境与灾害防治”(960903)，“十五”重大科技专项(2002B30905) |
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| An Analysis of the Factors Controlling Geological Hazards along the Coast of Guangdong Province |
| On the basis of an integrated and statistical analysis of a series of data involving about 350 sites of geological hazards and numerous areas of soil erosion, the authors hold that there are 3 factors controlling geological hazards on the land surface along the coast of Guangdong Province, i.e., the geo-environmental factor which includes tectonic instability, slope instability and ground instability, the climatic-meteorological factor and the human-activity factor. The main factors responsible for the geological hazards along the coast are climatic change and human activity, but there exists no tectonic activation except for earthquake, which is different from things in the mountain area, where endogenic geological dynamic action is the major factor for the geological hazards. Along the coast, the main dynamic sources that bring about geological hazards are the intensity and duration of the rainfall, the intensity of the typhoon and storm tide, the change in slope and vegetation caused by man activity, which all play their roles in forming the geo-environmental background of the area. |
| ZHU Zhao-yu,HUANG Ning-sheng,ZHOU Hou-yun,WEN Qi-zhong,YAN Man-cun,ZHONG Jian-qiang,XIE Xian-de.2003.An Analysis of the Factors Controlling Geological Hazards along the Coast of Guangdong Province[J].Acta Geoscientica Sinica,24(3):243-248. |
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