Biological and Environmental Research - Earth and Environmental System Sciences
Earth and Environmental System Modeling

On the modeling paradigm of plant root nutrient acquisition

TitleOn the modeling paradigm of plant root nutrient acquisition
Publication TypeJournal Article
Year of Publication2021
JournalPlant and Soil
Abstract / Summary

Plant root nutrient acquisition, and to a lesser extent foliar nutrient uptake, maintain plant metabolism and strongly regulate terrestrial biogeochemistry and carbon-climate feedbacks. However, terrestrial biogeochemical models differ in their representations of plant root nutrient acquisition, leading to significantly different, and uncertain, carbon cycle and future climate projections. Here we first review biogeochemical principles and observations relevant to three essential plant root nutrient acquisition mechanisms: activity of nutrient acquiring proteins, maintenance of nutrient stoichiometry, and energy expenditure for these processes. We next examine how these mechanisms are considered in three existing modeling paradigms, and conclude by recommending the capacity-based approach, the need for observations, and necessary modeling developments of plant root nutrient acquisition to improve carbon-climate feedback projections.

URLhttp://dx.doi.org/10.1007/s11104-020-04798-5
DOI10.1007/s11104-020-04798-5
Journal: Plant and Soil
Year of Publication: 2021
Publication Date: 01/2021

Plant root nutrient acquisition, and to a lesser extent foliar nutrient uptake, maintain plant metabolism and strongly regulate terrestrial biogeochemistry and carbon-climate feedbacks. However, terrestrial biogeochemical models differ in their representations of plant root nutrient acquisition, leading to significantly different, and uncertain, carbon cycle and future climate projections. Here we first review biogeochemical principles and observations relevant to three essential plant root nutrient acquisition mechanisms: activity of nutrient acquiring proteins, maintenance of nutrient stoichiometry, and energy expenditure for these processes. We next examine how these mechanisms are considered in three existing modeling paradigms, and conclude by recommending the capacity-based approach, the need for observations, and necessary modeling developments of plant root nutrient acquisition to improve carbon-climate feedback projections.

DOI: 10.1007/s11104-020-04798-5
Citation:
Tang, J, and W Riley.  2021.  "On the modeling paradigm of plant root nutrient acquisition."  Plant and Soil.  https://doi.org/10.1007/s11104-020-04798-5.