Relative Erodibility of Soils on Hillp Lands in Tawan Part－Part Ⅰ. Properties of the soils affecting soil erosion

Abstract

To evaluate their relative erodibility, six soils from cultivated lands on the slopes ranging from 15% to 25% were subjected to the field study on their soil profile characteristics and infiltration capacity. Analyses on their physical and chemical properties including porosity, particle size distribution, dispersion ratio, aggregate stability, clay ratio and contents of organic matter and free iron in the soils were carried out. 為探究丘陵地區坡地主要土壤之相對沖蝕性，選擇坡度在 15~ 25%土壤深度 70 公分以上之耕地土壤，在現地作部面性狀觀察與水分滲浸率側定，並就土層別採取土壤在室內測定與土壤沖蝕有關之各種土壤理化性質。