论文部分内容阅读
河流洪水、泥石流、雪崩、山崩、水蚀、滑坡、塌方、表土流失等自然现象,过去和现在每年都给国民经济,首先是农业经济造成重大损失。这些现象随着自然资源的进一步开发还会加剧。例如,为水能利用、农业灌溉和其它目的修建水库会造成部分地区淹没、滑坡、冲蚀和岸坡的破坏,修建公路、铁路、大型排灌渠道和输油管路的结果,使一些地区出现活动的滑坡过程,山区自然资源的开发利用和大量废料的堆积大大加剧现有泥石流源的活化并促使新的泥石流源的出现。
Natural phenomena such as river floods, debris flows, avalanches, landslides, water erosion, landslides, landslides and topsoil loss have caused great losses to the national economy and, above all, to the agricultural economy, first and foremost every year. These phenomena will intensify with the further development of natural resources. For example, the construction of reservoirs for water energy use, agricultural irrigation and other purposes can cause flooding, landslides, erosion and bank damage in parts of the country, as a result of the construction of highways, railways, large irrigation and drainage channels and oil pipelines, The landslide process, the development and utilization of mountain natural resources and the accumulation of a large amount of waste greatly aggravate the activation of existing debris flow sources and promote the emergence of new debris flow sources.