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黄土高原是在长期的地质历史演变中形成和发展的。水土流失是在一定的地质环境里,受到自然界或人类活动等外力作用形成的地质作用。随着人类社会的历史发展,人类的生产活动改变地质环境的规模越来越大,形成新的人工生态环境也越来越多。研究形成黄土高原的地质条件和历史发展,掌握形成水土流失的侵蚀、搬运、沉积等地质作用的发展规律,才能更好地运用自然规律和经济规律,调整自然作用与人类生产活动的关系,保持水土,开发治理黄土高原,形成适于人民生活与生产的生态环境,以取得较好的经济效果和环境保护效果。
The Loess Plateau is formed and developed in long-term evolution of geological history. Soil and water loss are geological effects formed by external forces such as nature or human activities in a certain geological environment. With the historical development of human society, the scale of the geological environment that human production activities change has become larger and larger, and a new artificial ecological environment has also been formed. To study the formation of the geological conditions and historical development of the Loess Plateau and to grasp the laws governing the development of erosion, transport, sedimentation and other geological causes of soil and water loss can we better utilize the laws of nature and economics to adjust the relationship between natural functions and human activities and maintain Soil and water shall be developed to harness the Loess Plateau and form an ecological environment suitable for people’s life and production so as to achieve better economic results and environmental protection.