Grazing Intensity Impacts on Carbon Sequestration in an Alpine Meadow on the Eastern Tibetan Plateau

نویسندگان

  • Y. H. Gao
  • P. Luo
  • N. Wu
  • H. Chen
چکیده

Livestock grazing has the potential to substantially alter carbon (C) storage in grassland ecosystem. In this study, we evaluated the soil-plant system C (0-30cm) under three different grazing intensities by yaks (light: 1.2, moderate: 2.0, and heavy: 2.9 yaks/ha) in alpine meadow on the eastern Tibetan Plateau. Soil organic C at 0-30cm depth and total plant components C increased from light grazing (9795 and 806 g/m ) to moderate grazing (10158 and 1087 g/m ) and to heavy grazing 2 2 (11729 and 1148 g/m ). The results indicated that higher grazing intensity had a potential to increase 2 soil-plant system C pool in the alpine meadow.

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تاریخ انتشار 2007