2001
DOI: 10.1016/s0764-4469(00)01261-0
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Modes de fonctionnement d’humus des forêts sempervirentes des Alpes internes françaises

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Cited by 7 publications
(5 citation statements)
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“…A similar phenomenon has been observed in a litter-doubling experiment with sessile oak litter, where an increase in litter thickness had been observed, without any corresponding increase in soil animal populations [12,49]. This can be attributed to the existence of two superposed but relatively independent functional domains, litter and rhizosphere [25], which is particularly well-represented in nutrient-poor (acid) mull profiles with thick litter [33].…”
Section: Discussionsupporting
confidence: 67%
“…A similar phenomenon has been observed in a litter-doubling experiment with sessile oak litter, where an increase in litter thickness had been observed, without any corresponding increase in soil animal populations [12,49]. This can be attributed to the existence of two superposed but relatively independent functional domains, litter and rhizosphere [25], which is particularly well-represented in nutrient-poor (acid) mull profiles with thick litter [33].…”
Section: Discussionsupporting
confidence: 67%
“…For instance, the basis of the chemical hypothesis, the differences in organic matter decomposition between acidic and neutral soils, is not consistent with overwhelming evidence that have shown that litter quality and climate (and not soil chemistry) are the most important drivers of litter decay in terrestrial ecosystems (Cornwell et al, 2008;Coûteaux et al, 1995). It suggests that pH is more likely the consequence of organic matter accumulation than its driver (Michalet et al, 2001). Moreover, species pH optima and amplitudes have been shown to vary geographically (Coudun & Gégout, 2005;Diekmann & Lawesson, 1999;Pakeman et al, 2008;Petřik & Bruelheide, 2006;Szymura et al, 2014), and the aforementioned tolerance to toxicity may only partly explain the pattern in the field.…”
Section: Introductionmentioning
confidence: 87%
“…Gigon, 1987;Grime & Curtis, 1976), in particular for deep-rooted tree and shrub species that may benefit from the water flow existing at bedrock-soil interface. Although, there could be strong differences in physical structure within either calcareous or siliceous rocks, calcareous soils are overall drier than siliceous soils because of the higher porosity of calcareous bedrocks that induces rapid water percolation within the substrate (Michalet et al, 2001(Michalet et al, , 2002Rolland et al, 1998). Michalet et al (2002) found at the subalpine belt of the French Alps that water stress on calcareous soils and competition on siliceous soils (due to lower drought stress) were the direct driving factors of richness, composition and structure of both community types.…”
Section: Introductionmentioning
confidence: 99%
“…However, they can grow in a wide range of mineral soil conditions (i.e. base saturation ratio and pH) in other mountainous areas and in particular in the inner Alps [7,33,52]. In this area, it has been shown that, in contrast to the Vosges mountains, the available N and P content can be low in neutral and basic soils as well as in very acidic soils [50].…”
Section: Ecological Response Of Tree Speciesmentioning
confidence: 99%