MODELS OF THE RHIZOSPHERE .2. A QUASI 3-DIMENSIONAL SIMULATION OF THE MICROBIAL-POPULATION DYNAMICS AROUND A GROWING ROOT RELEASING SOLUBLE EXUDATES

Journal article

A mathematical model is outlined which is capable of simulating the radial and vertical distribution of soluble carbon, and of microbial biomass and necromass around a root growing through the soil. An alternating-direction implicit finite difference method is used to simulate the movement of soluble C by diffusion and convection in the rhizosphere cylinder surrounding the root. Results are presented which suggest that microbial populations in the rhizosphere of a growing root may vary considerably with distance along the root with the precise distribution of soluble C and biomass depending on the pattern of exudate release along the root length. © 1991 Kluwer Academic Publishers.

Authors: Darrah, P

• Publication status: Published
• Publisher: Kluwer Academic Publishers
• Journal: PLANT AND SOIL
• Volume: 138
• Issue: 2
• Pages: 147-158
• Publication date: 1991-12-01
• DOI: 10.1007/BF00012241
• EISSN: 1573-5036
• ISSN: 0032-079X
• Language: English
• Keywords: GROWING ROOT; 3-DIMENSIONAL SIMULATION; RHIZOSPHERE; POPULATION DYNAMICS; EXUDATION; MATHEMATICAL MODEL