Comparative Nutrient Relations in Adjacent Stands of Chaparral and Coastal Sage Scrub1

نویسنده

  • John T. Gray
چکیده

Research Associate, Department of Biological Sciences, University of California, Santa Barbara, California, 93109. Abstract: Productivity and nutrient cycling parameters were measured in mature stands of chaparral and coastal sage scrub in the Santa Monica Mountains, California, USA. Net annual production and the magnitude of annual nutrient transfers were much greater in the evergreen chaparral. The chaparral had considerable stores of nutrients in wood biomass, low leaching rates, and a conservative and efficient use of most mineral elements. The drought-deciduous community was characterized by a high annual turnover of nutrients, high leaching rates, and considerable variation in foliar nutrient concentration during the year.

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تاریخ انتشار 2008