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Effect of Species, Source of Litter, Type of Soil, and Climate on Litter Decomposition: Microbial Decomposition of Tree and Shrub Leaf Litter 3

D. M. Howard and P. J. A. Howard
Oikos
Vol. 34, No. 1 (1980), pp. 115-124
Published by: Wiley on behalf of Nordic Society Oikos
DOI: 10.2307/3544558
Stable URL: http://www.jstor.org/stable/3544558
Page Count: 10
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Effect of Species, Source of Litter, Type of Soil, and Climate on Litter Decomposition: Microbial Decomposition of Tree and Shrub Leaf Litter 3
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Abstract

The effects, on leaf litter decomposition, of species (birch and oak), site on which the trees grew (mull or mor), soil type on which the litter decomposed, and the climates of the two sites, were studied in 1967/69 and 1968/70. The most consistent main effect was species, and significant effects of species on weight loss, respiration, and total N were observed in 1967/69 and 1968/70, and for moisture content and pH in 1967/69. The other effects were not always consistent, and in many cases varied between time periods. The site on which the trees grew was found to influence moisture retention and pH of the litter. The soil on which the litter decomposed influenced weight loss, moisture content, respiration, and pH. The only effect of climate was that at the mor site, which had the greater rainfall, litter dried more quickly after rain than did litter at the mull site, because the former was more open. /// Влияние таких факторов, как видовые особенности (береза, дуб), характер местообитания, где проиэрастают деревыя (мулль или модер), тип почвы и климатические условия двух местообитаний на разложение подстилки иссле-довали в 1967-69 гг и 1968-70 гг. Наиболее существенным фактором были видовые особенности, которые определяли динамику потери веса, интенсив-ность дыхания и содержание обшего И, что наблюдалось в 1967-69 гг и 1968-70 гг, а влияние влажности и рН - в 1967-69 гг. Другие факторы не всег-да имели эначение и во многих случаях их роль колебалась в разные перио-ды. Особенности местообитания, как установлено, определяли влажность и рН подстилки. Свойства почвы, на которой разлагается подстилка, влияют на скорость потери веса, влажность, активность дыхания и величину рН. Влияние климата проявлялось только в том, что в местах формирования мо-ра, где выладало больше осадков, обнако подстилка высыхала быстрее после дожедей, чем в местах с муллевым профилем, так как первые были более от-крыты.

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