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Applied and Environmental Soil ScienceVolume 2010 2010, Article ID 784342, 6 pages

Review Article

Laboratoire d'Ecologie, UPRES EA 1293 ECODIV, FED SCALE, UFR Sciences et Techniques, Université de Rouen, 76821 Mont Saint Aignan cedex, France

Agronomy Department, Centre R&D Nestlé Abidjan, 01 BP 11356 Abidjan 01, Cote D-Ivoire

Bioemco UMR 7618—IWMI, SFRI, Dong Ngac, Tu Liem, Hanoï, Vietnam

Bioemco UMR 7618, Site Ecole Normale Supérieure, 46 rue d'Ulm, 75230 Paris cedex 05, France

Received 26 June 2009; Revised 11 December 2009; Accepted 23 January 2010

Academic Editor: Natchimuthu Karmegam

Copyright © 2010 Kam-Rigne Laossi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Earthworms are usually assumed to enhance plant growth through different mechanisms which are now clearly identified. It is however difficult to determine their relative importance, and to predict a priori the strength and direction of the effects of a given earthworm species on a given plant. Soil properties are likely to be very influential in determining plant responses to earthworm activities. They are likely to change the relative strength of the various mechanisms involved in plant-earthworm interactions. In this paper, we review the different rationales used to explain changes in earthworm effect due to soil type. Then, we systematically discuss the effect of main soil characteristics soil texture, OM, and nutrient contents on the different mechanisms allowing earthworm to influence plant growth. Finally, we identify the main shortcomings in our knowledge and point out the new experimental and meta-analytical approaches that need to be developed. An example of such a meta-analysis is given and means to go further are suggested. The result highlights a strong positive effect size in sandy soil and a weakly negative effect in clayey soil.





Autor: Kam-Rigne Laossi, Thibaud Decaëns, Pascal Jouquet, and Sébastien Barot

Fuente: https://www.hindawi.com/



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