The paper presents activity of contemporary geomorphic processes in the Polish Carpathians,taking into account human impact on relief transformation in the past several centuries.Landsliding in the flysch Carpathians ...The paper presents activity of contemporary geomorphic processes in the Polish Carpathians,taking into account human impact on relief transformation in the past several centuries.Landsliding in the flysch Carpathians is a principal process in slope transformation,posing the most serious threat to man,both in the mountains and the foothills.On the other hand,unsuitable housing on slopes initiates mass movements,frequently with catastrophic consequences.Land use changes,in particular deforestation,have over the past 200 years fostered intensive slopewash and linear erosion,with this playing an important role in shaping foothill relief.Following changes in land use and channel regulation initiated at the beginning of the 20th century,a tendency to river bed deepening prevails.Moreover,floods,and not only extreme instances,continue to pose a threat to man,with their effects enhanced by housing in floodplain areas.展开更多
Complex erosion by wind and water, which is also called aeolian-fluvial interactions, is an important erosion process and landscape in arid and semiarid regions. The effectiveness of links between wind and water proce...Complex erosion by wind and water, which is also called aeolian-fluvial interactions, is an important erosion process and landscape in arid and semiarid regions. The effectiveness of links between wind and water process, spatial environmental transitions and temporal environmental change are the three main driving forces determining the geomorphologic significance of aeolian-fluvial interactions. As a complex interrelating and intercoupling system, complex erosion by wind and water has spatial- temporal variation features. The process of complex erosion by wind and water can be divided into palaeoenvironmental process and contemporary process. Early work in drylands has often been attributed to one of two schools advocating either an ＇aeolianist＇ or a ＇fluvialist＇ perspective, so it was not until the 1930s that the research on complex erosion by wind and water had been conducted. There are two obstacles restricting the research of complex erosion by wind and water. Firstly, how to transform in different temporal and spatial scales is still unsettled; and secondly, the research methodology is still immature. In the future, the mechanism and control of erosion, the complex soil erodibility in wind and water erosion will be the focus of research on complex erosion by wind and water.展开更多
文摘The paper presents activity of contemporary geomorphic processes in the Polish Carpathians,taking into account human impact on relief transformation in the past several centuries.Landsliding in the flysch Carpathians is a principal process in slope transformation,posing the most serious threat to man,both in the mountains and the foothills.On the other hand,unsuitable housing on slopes initiates mass movements,frequently with catastrophic consequences.Land use changes,in particular deforestation,have over the past 200 years fostered intensive slopewash and linear erosion,with this playing an important role in shaping foothill relief.Following changes in land use and channel regulation initiated at the beginning of the 20th century,a tendency to river bed deepening prevails.Moreover,floods,and not only extreme instances,continue to pose a threat to man,with their effects enhanced by housing in floodplain areas.
基金National Natural Science Foundation of China, No.30371191 The Ministry of Education of China, No.272008 Program for New Century Excellent Talents in University
文摘Complex erosion by wind and water, which is also called aeolian-fluvial interactions, is an important erosion process and landscape in arid and semiarid regions. The effectiveness of links between wind and water process, spatial environmental transitions and temporal environmental change are the three main driving forces determining the geomorphologic significance of aeolian-fluvial interactions. As a complex interrelating and intercoupling system, complex erosion by wind and water has spatial- temporal variation features. The process of complex erosion by wind and water can be divided into palaeoenvironmental process and contemporary process. Early work in drylands has often been attributed to one of two schools advocating either an ＇aeolianist＇ or a ＇fluvialist＇ perspective, so it was not until the 1930s that the research on complex erosion by wind and water had been conducted. There are two obstacles restricting the research of complex erosion by wind and water. Firstly, how to transform in different temporal and spatial scales is still unsettled; and secondly, the research methodology is still immature. In the future, the mechanism and control of erosion, the complex soil erodibility in wind and water erosion will be the focus of research on complex erosion by wind and water.
