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西藏地区土壤侵蚀以水力侵蚀、风力侵蚀和冻融侵蚀为主,水土流失主要受降水、大风、温度、地形地貌、地质、植被等自然因素及乱垦滥伐、过度放牧、掠取资源、破坏环境等人为因素影响。为防治西藏地区复杂多样的水土流失,结合西藏地区的自然属性和区域水土流失特点,将西藏地区分为藏东南水力侵蚀为主区、藏西风力侵蚀为主区、藏北冻融侵蚀为主区及藏中复合侵蚀区,并针对各区的自然属性及影响因素,提出在不同时期以防治水力侵蚀、风力侵蚀、冻融侵蚀和复合侵蚀为主的防治措施和发展方向,并提出加强水土流失防治宣传、研究水土流失机制和防治对策、落实水土保持措施等举措,以达到防治西藏地区水土流失、保护区域生态环境的目的。
Soil erosion in Tibet is dominated by hydraulic erosion, wind erosion and freeze-thaw erosion. Soil erosion is mainly caused by natural factors such as precipitation, wind gusts, temperature, topography, geology and vegetation as well as deforestation, excessive grazing, resource extraction and environmental damage And other human factors. In order to prevent and control the complicated and varied soil and water loss in Tibet, combining the natural attributes of Tibet and the characteristics of regional soil erosion, the Tibetan region is divided into the main areas of hydraulic erosion in the southeast of Tibet and the wind erosion in the western part of Tibet. District and Tibetan-Chinese compound erosion area. In view of the natural attributes and influencing factors in each area, the prevention and cure measures and development direction are put forward to prevent and control water erosion, wind erosion, freeze-thaw erosion and compound erosion in different periods and propose to strengthen soil and water loss Prevention and control of propaganda, research on soil and water loss mechanism and prevention and control measures, implementation of measures such as soil and water conservation so as to achieve the purpose of preventing and controlling soil and water loss in Tibet and protecting the regional ecological environment.