Introducing Grasslands into Crop Rotations, a Way to Restore Microbiodiversity and Soil Functions

Agriculture

Stéven Criquet¹  Xavier Latour²  Rémi Chaussod³  Marc Legras⁴  Isabelle Trinsoutrot-Gattin⁴  Wassila Riah-Anglet⁴  Marie-Paule Norini⁴  Karine Laval⁴  Elodie Cusset⁴  Christian Mougin⁵  Nathalie Cheviron⁵ 

[1] Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE, Campus Etoile St Jérôme, Av Escadrille Normandie Niémen-case 441-13397 Cedex 20, F-13397 Marseille, France;Research Federations NORVEGE Fed4277, Normandy University, F-76821 Mont-Saint-Aignan, France;SEMSE, 2 Chemin du Lavoir, 21310 Viévigne, France;UniLaSalle, AGHYLE Research Unit UP 2018.C101, Rouen Team, 76134 Mont-Saint Aignan, France;Université Paris-Saclay, INRAE, AgroParisTech, UMR 1402 ECOSYS, Platform Biochem-Env, F-78026 Ver-sailles, France;

关键词: enzyme activities;    microbial communities restoration;    crop rotation;    grassland;    function level;    grassland/cropland legacy;   

DOI  :  10.3390/agriculture11100909

来源: DOAJ

【 摘 要 】

The aims of this study were to investigate (i) the influence of aging grassland in the recovery of soil state by the comparison of permanent grassland, two restored grasslands, two temporary grasslands, and a continuous crop in the same pedoclimatic conditions, (ii) the extent and the persistence of the potential changes following a grassland/or cropland phase. We hypothesized that the level of microbial communities and enzyme activities could achieve a profile close to that of permanent grassland after the introduction of grassland for a few years in crop rotations. Soil biophysicochemical properties were studied. Our results indicated that the abundance of microbial communities and enzyme activities were positively correlated to soil C and N contents and negatively correlated to soil pH. The changes in microbial abundance level were strongly linked to the changes in functional level when grasslands are introduced into crop rotations. We also showed that a continuous crop regime had a stronger legacy on the soil biota and functions. By contrast, the legacy of a grassland regime changed quickly when the grassland regime is interrupted by recent culture events. A grassland regime enabled the restoration of functions after more than five cumulative years in the grassland regime.

【 授权许可】

Unknown