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Zelles, L. ; Scheunert, I. ; Kreutzer, K.*

Effect of artificial irrigation, acid precipitation and liming on the microbial activity in soil of a spruce forest.

Biol. Fertil. Soils 4, 137-143 (1987)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The effects of irrigation, acid precipitation and liming on the bioactivity in a spruce forest soil were measured with different tests. Except for the iron reduction test and the FDA hydrolysis, the highest activities were measured in the upper horizons and mostly decreased gradually in the deeper ones. The determination of heat output and respiration without additional energy supply and ATP measurement gave similar results: acid precipitation inhibits the bioactivity in O1 and Of1, layers; lime stimulated it mostly in Of2 horizons. Except for the results of ATP measurement, in Of2 horizons the influence of lime exceeded that of acid irrigation. The results obtained from respiration and microcalorimetric measurements after the introduction of an energy supply were similar: Humidity, derived either from acid precipitation or from irrigation, stimulated the activity as well as lime, clearly in Of2, to a smaller extent also in deeper horizons. The bioactivity in Oft increased significantly in the plots in the order: control, plot with acid irrigation, plot with normal irrigation, limed plot, limed plot with acid irrigation, and limed plot with normal irrigation. The difference between irrigated and acid-irrigated plots is due to the inhibitive effects of protons and SO4 2-. The FDA hydrolysis test showed a clear stimulative effect of humidity in Of horizons of non-limed plots. With the iron reduction test, stimulation in acid-irrigated and inhibition in limed samples was demonstrated. The maximum bioactivity measured with this method was localized in deeper horizons.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Acid Irrigation ; Atp Test ; Fda Hydrolysis ; Iron Reduction Test ; Microcalorimetric Measurements ; Soil Respiration ; Spruce Forest
ISSN (print) / ISBN 0178-2762
e-ISSN 1432-0789
Zeitschrift Biology and Fertility of Soils
Quellenangaben Band: 4, Heft: 3, Seiten: 137-143 Artikelnummer: , Supplement: ,
Verlag Springer
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Ecological Chemistry (IOEC)