State of Dry Matter and Nutrients of Soil-Plant Systems of Arizona Fescue and Mountain Muhly
CitationKlemmedson, J. O. (1983). State of dry matter and nutrients of soil-plant systems of Arizona fescue and mountain muhly. Journal of Range Management, 36(5), 558-564.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractThe state of dry matter, C, N, S and P for soil-plant systems of Arizona fescue and mountain muhly in the Arizona pine-bunchgrass community was determined as a first step to quantification of mineral cycles. These bunchgrass systems differed in stature, structure and accumulation of dry matter and nutrients, both on an absolute and per unit basal area basis for several components of the soil-plant systems. Dry matter/unit area was greater in fescue because of accumulation of standing dead vegetation and litter; weight of live shoots was 18% less in fescue than muhly. All 4 nutrients were present in greater concentrations and amounts in fescue than in muhly biomass, but accumulation patterns and influence on soil differed among nutrients. The standing state data suggest more rapid loss of dry matter and nutrients from muhly than fescue during senescence and decomposition.