Holocene Colluviation and its Implications for Tracing Human-induced Soil Erosion and Redeposition on the Piedmont Loess Lands of the Qinling Mountains,Northern China
会议名称:《中国地理学会2006年学术年会》
会议日期:2006年
学科分类:082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 09[农学] 0815[工学-水利工程]
摘 要:正Colluvial components incorporated in loess - soil sequences have preserved evidence of soil erosion and re-deposition in the middle reaches of the Yellow River drainage basin. Holocene loess - soil sequences on the gently sloped lands were studied by measurement including magnetic susceptibility, particle -size distribution, CaCO3 and extraction and identification of the non - dust materials. The analytical results indicate that soil erosion and re-deposition by overland flow occurred, even on the loess