Soil Carbon Pools in California's Annual Grassland Ecosystems
作者: Whendee L. SilverRebecca RyalsValerie Eviner
刊名: Rangeland Ecology & Management, 2010, Vol.63 (1), pp.128-136
来源数据库: BioOne Complete
DOI: 10.2111/REM-D-09-00106.1
关键词: annual grasslandclimate changeMediterranean climateoak woodlandsoil carbon sequestration
原始语种摘要: Rangeland ecosystems cover approximately one-third of the land area in the United States and half of the land area of California. This large land area, coupled with the propensity of grasses to allocate a considerable proportion of their photosynthate belowground, leads to high soil carbon (C) sequestration potential. Annual grasslands typical of the Mediterranean climates of the western United States differ in their life history strategies from the well-studied perennial grasslands of other regions and thus may also differ in their soil C pools and fluxes. In this study we use the literature to explore patterns in soil C storage in annual grass-dominated rangelands in California. We show that soil C is highly predictable with depth. Cumulative soil C content increased to 2–3-m depth in...
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  • grasses 禾本种
  • perennial 多年生植物
  • grassland 草地
  • grazing 放牧
  • aboveground 地上的
  • woody 木质的
  • photosynthate 同化物
  • temperate 适度的
  • content 品位
  • spanning 生成