黄土丘陵区侵蚀土壤质量评价_许明祥.pdfVIP

2005, 11(3):285-293 Plant Nutrition and Fertilizer Science 1 1 2 许明祥 , 刘国彬 , 赵允格 (1 、, , 712100; 2 , 712100) :, , 。, , 。8 29 , 。 , 5 。10 , , 1 ;, 2 ;3 , 3 ;、、4 。 :;;; :S158　　　:A　　　:1008-505X(2005)03-0285-09 Quality assessment of erosion soil on hilly Loess Plateau 1 1 2 XU Ming-xiang , LIU Guo-bin , ZHAO Yun-ge (1 Inst.of Soil and Water Conservation, CAS and M WR, Northwest Univ.of Agric.And forest, Yangling, Shaanxi 712100, China; 2 State ey Lab.of Soil Erosion and Dryland Farming on theLoess Plateau, Inst.of Soil and Water Conservation, CAS and MWR, Yangling, Shaanxi 712100, China) Abstract:T roug establis ing single factor and integrated assessment models, suitable assessment met od for erosion soil quality on illy Loess Plateau w as selected.Quantitative assessments of soil qualities in different land utilization types was also performed in t is paper.T e results s owed t at soil quality evaluation wit weig ted integrated met od could preferably reflect t e actual situation of assessed soils and effects t e variation of land utilization on soil quality sensitively. T e 8 simple soil quality indicators screened out by factor analysis reflected t e information of 29 soil integrate assessment indicates well and results of assessment be of ig representative.Furt ermore, t e criteria of classification forerosion soil quality were studied out.Soil quality of researc area was classified into 5 grades.T e researc results also indicated t at soil quality on t e illy Loess plateau was significantly different due to different land utilization types.Soil quality in natu- ral forestland was t e best and w as cla