摘要
本文从黄土高原的形成过程,黄土——古土壤性征的对比,孢粉、石器、历史地理以及水土流失的定位观测资料,说明目前黄土高原的严重水土流失是人类破坏植被,不合理利用土地和直接毁灭土壤透水和抗冲能力的结果,而不是一个天然的地质过程。为此提出以“全部降水就地入渗拦蓄,米粮下川上塬,林果下沟上岔,草灌上坡下坬”28字为中心的水土保持治理方略,以供开发整治黄土高原水土资源和治理黄河参考。
Investigating the formation process of the loess plateau by means of comparision of the characteristics of the loess and ancient soils, polynology analysis, stone tools and geographic features and observation on the fixed points, the author came to a conclusion that existing severe soil erosion of the loess plateau has been caused by the human activities, such as destruction of the natural vegetation cover and improper land uti-lization, that has led to reduction of the permeability and erodibility of the top soils. It is not a natural pro-cess. Based on this point of view, a strategy of 'holding all rainfall water on the place making it infiltrating into the soils, planning crop land on the flat plateau and low valley land, orchards on gullies and hillies and grass-brushes on the slopes' is suggested to better manage and utilize the land resources.
出处
《中国水土保持》
北大核心
1992年第2期4-10,共7页
Soil and Water Conservation in China
