WEN Ya, LIU Xiao-nan, CHENG Jiong. Assessment and Feature Analysis of Soil Erosion in Mountainous Area of Guangdong Province Based on USLE[J]. Bulletin of Soiland Water Conservation, 2013, 32(4): 112-118.
WEN Ya, LIU Xiao-nan, CHENG Jiong. Assessment and Feature Analysis of Soil Erosion in Mountainous Area of Guangdong Province Based on USLE[J]. Bulletin of Soiland Water Conservation, 2013, 32(4): 112-118.DOI:
Taking reasonable soil erosion factors from remote sensing and GIS spatial analysis
we estimated the soil erosion situation by universal soil loss equation(USLE)in mountain area of Guangdong Province. The spatial changes of soil erosion with laud use
soil type
slope degree and elevations also be analyzed in this paper.The results indicate that the annual average soil erosion amounted to 1.23×108 t with the mean soil erosion modulus of 1 080t/(km2·a)classified as slight degree erosion.Among different types of land use
the strongest soil erosion occurred in dry land with the erosion modulus of 2 055t/(km2·a)and the weakest erosion was in forest and grassland with the erosion modulus of 908and 932t/(km2·a)respectiely. And the soil erosion intensity increased with slope gradient
the greater of the slope gradient
the more intense of the soil erosion.In different elevation zones
the soil erosion intensity increases with the elevation until to 1 600meters