【摘要】 探讨土壤侵蚀研究中的人地关系问题有利于水土保持工作更有针对性的展开。从自然侵蚀到加速侵蚀的发展过程 ,体现了人类活动同自然环境关系之间的变化。在回顾了加速侵蚀的历史发展过程之后 ,我们发现加速侵蚀的日益严重受人地关系变化的控制。人口压力和有限的资源之间的矛盾正是当前加速侵蚀产生的人地关系背景。解决基本的生存需要和提高生活质量尽管带来了巨大的社会效益 ,但如果忽略了环境的保护就会造成加速侵蚀的发生。因此 ,它们构成了加速侵蚀中的人类活动的直接动因。同时 ,人类大规模的水土保持对于减缓侵蚀和改善生态环境也发挥了巨大的作用。更多还原

【Abstract】 Man land relationship always bears great significance in water soil conservation study. The evolution of soil erosion process from a nature pattern to an accelerated pattern reflects the upgrading impact man exerted on its environment. Based on the investigation of the historical development of accelerated erosion, it is clear that human activity is the main controlling factor. Man’s activities engendered the accelerated erosion directly or indirectly through influencing other geographical factor matters to vegetation and soil. The inner cause of accelerated erosion is the lost of balance between population and environment. People’s pursuit of better life with ignorance of sustainable view leads to unbalanced exploitation of resources and unlimited agriculture colonization, which inevitably engendered the degradation of the fragile ecosystem, especially in the northwest and southwest of China. Although a lot of efforts have been made to conserve the depleting soil resources, which is crucial to the survival of human kind, many problems left unresolved and a deeper discussion in a comprehensive view is expected.更多还原