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  • 1
    Electronic Resource
    Electronic Resource
    Decomposition of roots in a Chihuahuan Desert ecosystem (1988)
    Springer
    Oecologia 75 (1988), S. 8-11 
    Details
    ISSN: 1432-1939
    Keywords: Decomposition ; Desert ; Nitrogen immobilization ; Roots ; Termites
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Mass losses of tethered buried roots of two woody shrubs and two herbaceous annuals buried in plots irrigated at 25 mm·month-1, 6 mm·week-1 and no irrigation were measured. At the end of 1 year, 10–15% of the mass of the herbaceous annual roots remained and 60% of the mass of woody shrub roots remained. There were no differences in mass loss attributable to added water. Rates of mass losses of roots in the Chihuahuan Desert were equal to or higher than those reported from mesic ecosystems. Roots of woody shrubs had relatively constant C:N ratios through the experiment. There was significant N immobilization in Baileya multiradiata roots. Percent mass loss of grass roots, Erioneuron pulchellum, and herbaceous annual roots, B. multiradiata, in plots with termites was 62% and in plots without termites was 15%. These data suggest that subterranean termites are responsible for most of the mass loss and mineralization of carbon and nitrogen in dead grass and herbaceous roots in the northern Chihuahuan Desert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00378807
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  • 2
    Electronic Resource
    Electronic Resource
    Decomposition along a rainfall gradient in the Judean desert, Israel (1990)
    Springer
    Oecologia 82 (1990), S. 322-324 
    Details
    ISSN: 1432-1939
    Keywords: Decomposition ; Rainfall ; Desert ; Gradient
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The effect of a rainfall gradient, from a semiarid to extremely arid, on decomposition, were studied in the Judean desert, Israel. During the study period, the rainfall gradient obtained ranged from 308 mm to 24.4 mm. There was a annual mass loss of approximately 20% and 16% in the semi-arid and extremely arid regions, respectively. No significant correlation was found between the total rainfall and total mass losses. The data suggest that in an area where the conditions are not suitable for biological activity, the decomposition processes result from abiotic conditions, like temperature and radiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00317478
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    Paper (German National Licenses)
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