Research progress on soil erosion mechanism and ecological restoration technology in feldspathic sandstone region

The ecological protection and high-quality development of the Yellow River Basin are important for the construction of ecological civilization in the new era of China. The feldspathic sandstone region is one of the regions facing the most serious water erosion in the Yellow River Basin. It is also the coarse sand source area of the Yellow River. Great attention was paid to the soil and water erosion control and ecological restoration in feldspathic sandstone region. After persistent efforts through soil and water conservation for years, great achievements had been made, the effect of soil and water erosion control was remarkable and the regional ecological environment was gradually recovering, but the situation of soil erosion in the feldspathic sandstone region remained grim, the ecological environment is still weak in the feldspathic sandstone region. The plantations face the enormous risk of degradation and regeneration of plantation. There are plenty of literatures about the research of soil erosion mechanism of the feldspathic sandstone region. However, the hydrographic underlying surface of this region is complicated and the soil erosion types are diversified. It cannot meet the requirements of development of soil erosion mechanism of feldspathic sandstone region to continue using traditional methods of loess area. This article presents the history of the study on soil erosion mechanism and ecological restoration technology in feldspathic sandstone region, combining the previous research results and the author’s scientific research experiences. Systematic analysis was done on the progresses and shortcomings in the study on soil erosion mechanism and ecological restoration technology from the aspects of internal cause of the erosion in bed rock, soil erosion mechanism, ecological restoration technology, existing problems and development direction. Five directions for future researches on soil erosion mechanism and ecological restoration technology in feldspathic sandstone region were given.