文献类型: 会议论文
第一作者: LI Xudong
作者: LI Xudong 1 ; LI Xiaodong; NIU Decao; FU Hua; Chinese Society for Grassland Science; Lanzhou University; Gansu Grassland Ecological Research Institute(GGERI)(CN);;
作者机构: 1.College of Pastoral Agriculture Science and Technology, Lanzhou University 730020
关键词: loess plateau;land use systems;soil organic carbon
会议名称: Acta Prataculturae Sinica vol.15 Suppl. July 2006:Grassland Agriculture:Balancing Production and Environmental Protection
主办单位:
页码: 62-65
摘要: In this study the soil organic carbon content (SOC) was analyzed and compared in three typical land use systems in the Longzhong region of the Loess plateau; cultivated land, grassland and forest meadow. In the 0 - 10 cm soil depth. SOC content was highest in the forest-meadow, followed by grassland, with the cultivated land having the lowest SOC (P < 0.05). In the 10 - 20 cm soil depth, the forest-meadow still had the highest SOC, but was followed by cultivated land, with grassland having the lowest SOC, but these differences were not statistically significant. In 20-100 cm layers, SOC in cultivated land was notablely higher than in grassland and forest meadow as a result of the long-term application of manure. In grassland and forest meadow, SOC consistently declined with increasing depth in the soil profile . In cultivated land, SOC values were highest at intermediate soil depth, and decreased significantly from 30cm to 100cm.
分类号: S812
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