WANG Yan, YANG Jian-hong, PAN Jie, et al. Soil Profile Characteristics During Grassland Degeneration and Desertification in the Northwest of Sichuan Province[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 92-95.
WANG Yan, YANG Jian-hong, PAN Jie, et al. Soil Profile Characteristics During Grassland Degeneration and Desertification in the Northwest of Sichuan Province[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 92-95.DOI:
The paper focused on the soil profile characteristics and soil physico-chemical properties of different degradation grades in the northwest of Sichuan Province.Results showed that the meadow layer of soil profile became smaller
vegetation coverage was declined
and good pasturage was gradually decreased in variety and quantity with increased steppe degradation grades.The contents of organic matter and humic acid showed a downtrend and meanwhile
and available potassium showed a declined tendency.The content of total potassium showed a slight uptrend
but the change was not obvious.Soil pH value also showed a slight uptrend and the pH value of surface layer was less than the value of subsurface layer.