On the modeling paradigm of plant root nutrient acquisition

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, lea...

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Veröffentlicht in:Plant and soil 2021-02, Vol.459 (1/2), p.441-451
Hauptverfasser: Tang, Jinyun, Riley, William J.
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description 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.
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subjects BASIC BIOLOGICAL SCIENCES
Biogeochemistry
Biogeochemistry-climate feedback
Biomedical and Life Sciences
Botanical research
Carbon
Carbon cycle
Climate models
Ecology
Energy expenditure
Food and nutrition
Life Sciences
Nutrient limitation
Nutrient stoichiometry
Nutrient uptake
OPINION PAPER
Physiological aspects
Plant metabolism
Plant Physiology
Plant root nutrient acquisition
Plant roots
Plant Sciences
Plantmicrobial competition
Plants
Roots (Botany)
Soil Science & Conservation
Stoichiometry
Terrestrial biogeochemical modeling
title On the modeling paradigm of plant root nutrient acquisition
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