The effect of Lumbricus terrestris on soil in relation to plant growth: Effects of nutrient-enrichment processes (NEP) and gut-associated processes (GAP)

Devliegher, Ward; Verstraete, Willy

doi:10.1016/s0038-0717(96)00096-x

Cited by 61 publications

(17 citation statements)

References 14 publications

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“…Earthworms are known to incorporate material from the forest floor into deeper soil horizons (Devliegher and Verstraete, 1997), and they may strongly affect soil C and N dynamics (Bohlen et al, 2004). A recent study of beech, lime, maple, oak, spruce and nine other tree species in a Polish common garden experiment revealed that maple and lime had high and spruce had low earthworm abundances, which was attributed to differences in litter Ca (Reich et al, 2005).…”

Section: Distribution Of C and N Between Forest Floor And Mineral Soilmentioning

confidence: 99%

Carbon and nitrogen in forest floor and mineral soil under six common European tree species

Vesterdal

Schmidt

Callesen

et al. 2008

Forest Ecology and Management

476

319

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Section: Distribution Of C and N Between Forest Floor And Mineral Soilmentioning

confidence: 99%

Carbon and nitrogen in forest floor and mineral soil under six common European tree species

Vesterdal

Schmidt

Callesen

et al. 2008

Forest Ecology and Management

476

319

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“…The alga corresponded to the food resource and to the only source of mercury contamination. The biomass of alga added to the experiments was based on the existent macrofauna biomass, according to Devliegher and Verstraete (1997). For each of the three studied conditions (referencenon-contaminated alga, low and high metal contamination), six different sampling times were chosen (t1, 2 days; t2, 5 days; t3, 9 days; t4, 15 days; t5, 23 days; and t6, 31 days).…”

Section: Methodsmentioning

confidence: 99%

Kinetics of Mercury Bioaccumulation in the Polychaete Hediste diversicolor and in the Bivalve Scrobicularia plana, Through a Dietary Exposure Pathway

Cardoso

Pereira

Grilo

et al. 2011

Water Air Soil Pollut

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Mercury bioaccumulation kinetics of two important macrobenthic species, the polychaete Hediste diversicolor and the bivalve Scrobicularia plana, were evaluated following a dietary pathway (i.e. contaminated algae), through a mesocosm laboratory experiment. Both studied species presented a similar model of Hg bioaccumulation kinetics, a linear pattern of accumulation through time being the mercury accumulation in the organisms proportional to the mercury concentration in the food. Mercury bioaccumulation rates were higher in the polychaete H. diversicolor (reaching approximately 0.15 μg g −1 at the end of the experiment) than in the bivalve S. plana (≈0.07 μg g −1 ), which could be related to their feeding strategies, ingestion rates and assimilation efficiencies. Moreover, the mercury bioaccumulation revealed to be quite a fast process especially for the polychaete, and despite the fact that this species is not an edible organism, it is an important prey item, which can greatly contribute to the transport of contaminants to higher trophic levels. Therefore, the bioaccumulation of mercury by these important macrobenthic species, especially the bivalves, represents a non-negligible risk for humans.

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“…Compared with the bulk soil, the drilosphere that is influenced by earthworm excreta is characterized by a higher bacteria density (Devliegher and Verstraete 1997), higher population of nitrifying bacteria and higher dehydrogenase activity, and also by higher contents of microbial P and alkaline phosphatase activity meeting higher P contents in the tapestries of the walls coated with worm cast (Pankhurst et al 2002). Furthermore, these earthworm-influenced soil spaces show higher basal respiration and microbial biomass (Pierret et al 1999), as well as higher contents of microbial P (Tiunov and Scheu 1999).…”

Section: P Acquisition From the Subsoilmentioning

confidence: 99%

Phosphorus—The Predicament of Organic Farming

Paulsen

Köpke

Oberson

et al. 2016

Phosphorus in Agriculture: 100 % Zero

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Today on many sites organic farming might neglect phosphorus (P) fertilization due to soil reserves build up by P fertilization of former farming systems. Additionally organic farming has restricted itself to the use of non-solubilised rock phosphate as mineral fertilizer source that only has limited plant availability on agricultural soils with adequate pH. Also recycling of P from the food chain back to organic agriculture is not consequently realised. These predicaments of organic farming endanger its future sustainability. The article gives an overview on the state of knowledge of the use of topsoil and subsoil P reserves by plants in organic production, on possibilities to activate them by biological measures for direct use by plants and for their redistribution on farms. As in legislation phosphate rock is defined as prevailing mineral fertilizer source for organic farming, a detailed view is given on the use of its P in dependence of plant variety. Also attempts to improve its fertilizer value by mixtures with organic matter are reviewed. It is obvious that plant roots and soil organisms can activate P from the soil and keep it in biological turnover. This is a promising concept to use soil reserves, but quantification of time-spans offering sufficient P supply just by this approach is not possible. Therefore, while promoting root density, root penetration and biological activity in soils, site specific analyses of plant available P in soil, analyses of field and farm P-budgets as well as of plants P supply are necessary to decide on P-fertilization. Soluble P sources, preferably from recycling processes, should be developed for future fertilization demands of organic farming.

show abstract

The effect of Lumbricus terrestris on soil in relation to plant growth: Effects of nutrient-enrichment processes (NEP) and gut-associated processes (GAP)

Cited by 61 publications

References 14 publications

Carbon and nitrogen in forest floor and mineral soil under six common European tree species

Carbon and nitrogen in forest floor and mineral soil under six common European tree species

Kinetics of Mercury Bioaccumulation in the Polychaete Hediste diversicolor and in the Bivalve Scrobicularia plana, Through a Dietary Exposure Pathway

Phosphorus—The Predicament of Organic Farming

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