Image-based modelling of nutrient movement in and around the rhizosphere.

ABSTRACT: In this study, we developed a spatially explicit model for nutrient uptake by root hairs based on X-ray computed tomography images of the rhizosphere soil structure. This work extends our previous work to larger domains and hence is valid for longer times. Unlike the model used previously, which considered only a small region of soil about the root, we considered an effectively infinite volume of bulk soil about the rhizosphere. We asked the question: At what distance away from root surfaces do the specific structural features of root-hair and soil aggregate morphology not matter because average properties start dominating the nutrient transport? The resulting model was used to capture bulk and rhizosphere soil properties by considering representative volumes of soil far from the root and

SUBMITTER: Daly KR 

PROVIDER: S-EPMC4753851 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature