Mangiarotti Sylvain, Fu E., Jouquet Pascal, Tran M. T., Huc M., Bottinelli Nicolas. (2021). Earthworm activity and its coupling to soil hydrology : a deterministic analysis. Chaos, 31 (1), p. 013134 [13 p.]. ISSN 1054-1500.
Titre du document
Earthworm activity and its coupling to soil hydrology : a deterministic analysis
Mangiarotti Sylvain, Fu E., Jouquet Pascal, Tran M. T., Huc M., Bottinelli Nicolas
Source
Chaos, 2021,
31 (1), p. 013134 [13 p.] ISSN 1054-1500
Considering in situ observations, chaos theory was taken as a basis to study the activity of anecic earthworms based on cast production from September 2016 to January 2018 in the Dong Cao watershed (Vietnam). To study this activity, the global modeling technique was used to obtain deterministic models of ordinary differential equations directly from observational time series. The obtained models show that the behavior of earthworms is chaotic; it is coupled to the dynamics of soil water content in a complex (integrative) way and can be interpreted as an habituation/sensitization process. However, this coupling is insufficient to explain the desynchronization of the cast production variations observed at different study sites. The retroaction of earthworm activity on soil is required to explain the spatiotemporal discrepancies.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Pédologie [068]
;
Biologie du sol [074]
