ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Eucalypt forests  (2)
  • Springer  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Nutrient cycling and nitrogen mineralization in eucalypt forests of south-eastern Australia (1986)
    Springer
    Plant and soil 92 (1986), S. 319-339 
    Details
    ISSN: 1573-5036
    Keywords: Eucalypt forests ; Litterfall ; Nitrogen ; Nutrient cycling ; Turnover
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Nutrient pools in litter and soil and the major nutrient transfers and additions in rainfall, throughfall and litterfall were measured in eight mature, undisturbed eucalypt forests covering a range of species, climate, productivity and soil type. Litterfall is the major pathway for the return of N, P, Ca and usually Mg, to the soil. The forests covered almost the range of litterfall reported for eucalypt forests and, in conjunction with published data, litterfall was strongly related to climatic variables. Extractable P in the soil and P concentrations in litter and litterfall were significantly higher in two sub-alpine forests (Eucalyptus pauciflora andE. delegatensis) than in all other forests. In general, nutrient turnover, particularly N turnover, was related to the rate of organic matter turnover. Rates of organic matter turnover in these forests and in other studies of eucalypts were correlated with climatic conditions using the simple climatic scalar developed by Vitousek. Nitrogen turnover, especially that proportion cycling via leaf litterfall is primarily a function of organic matter turnover, but litter quality appears also to have an influence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372482
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Nutrient cycling and nitrogen mineralization in eucalypt forests of south-eastern Australia (1986)
    Springer
    Plant and soil 92 (1986), S. 341-362 
    Details
    ISSN: 1573-5036
    Keywords: Eucalypt forests ; Fire Immobilizxtion ; Nitrogen mineralization ; Nitrogen turnover ; Nitrification ; Nitrogen conservation ; Resilience
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Nitrogen mineralization was measured in the laboratory andin situ in eight eucalypt forests covering a wide range of climates and soil types. Aerobic and anaerobic incubations as well as chemical indices showed consistently higher rates of mineralization and nitrification and higher mineralization potentials in the wetter, high productivity forests. Nitrification was not confined to these forests and appears best related to soil C/N ratios and the rate of N turnover. Immobilization is recognized as a major process in eucalypt forest soils; in two forests which were burnt by bushfire during this study immobilization prevented over-accumulation of inorganic-N and possible leaching of NO 3 − −N. Calculated fromin situ incubations, annual uptake of inorganic-N ranged from 27 to 160 kg N ha−1; in two of four forests nitrate uptake was not apparent, in a third forest nitrate accounted for 10% of total uptake and in the remaining forest nitrate comprised about one-third of inorganic-N taken up. Ammonium is thus the dominant inorganic form taken up in eucalypt forests of this region. There was general agreement between laboratory andin situ incubations as to the occurrence of nitrification and the difference in mineralization rates between forests. In conjunction with previous studies, the turnover and maintenance of N-pools in eucalypt forests is discussed; forests with low N-capital appear to be resistant to possible N-loss after perturbation, forests with higher N-capital are more susceptible to loss but recover quickly. Immobilization of inorganic-N is central to the recovery process. These results agree with recent hypotheses proposed by Vitousek and Boerner.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372483
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...