【摘要】 文章以广东省德庆县水土流失为例,结合多年来在该地区进行水土方面的研究成果,对地质灾害危险性评估工作中出现的水土流失现状作了论述、预测评估进行探讨,并提出防治措施。水土流失产生的主导因素是燕山期花岗岩分布的丘陵区岩体结构遭到破坏;从属因素是持续强烈的降雨,从而加剧了水土流失;激发因素是人类工程活动对地质环境的破坏。经评估,该区水土流失正处于青年期,潜在不稳定性。更多还原

【Abstract】 In this paper,the authors studied the status,predicting and countermeasures of soil erosion hazard in Deqing County,Guangdong Province based on the many years study of the geohazard in this region.The primary factor of soil erosion is the erosion of Yanshan Period granite,the secondary factor is heavy rainfall,and the inducing factor is human activity.The study shows that the soil erosion of this region is getting worse.更多还原