TY - JOUR
T1 - A mathematical model of Chenopodium album L. dynamics under copper-induced stress
AU - González-Ramírez, Laura R.
AU - Alaçam, Deniz
AU - Akpinar, Aysegul
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/7
Y1 - 2022/7
N2 - Heavy metal contamination of the soil is a global problem that produces different harmful effects from an environmental and public health perspective. Although there have been numerous efforts to solve this problem, there is no precise methodology to decontaminate heavy-metal polluted soils. One of the strategies to develop such methods relies on mathematical modelling. Pursuing this goal, we propose a novel mathematical compartmental model consisting of a linear system of differential equations to address the suitability of the model plant (Chenopodium album L.) for the remediation of contaminated areas, such as sewage sludge lagoons. Our results show a tendency to maintain high concentrations of copper (Cu) in the roots with the possibility of continuing with good plants’ dynamics. Moreover, the model theoretically proposes contaminant concentration in the plants’ shoots and roots and predicts a more prolonged tendency to accumulate copper concentrations in the shoots and disrupt the shoots’ dynamics. These results provide complementary support for the suitability of this model plant to be used in contaminated areas. In addition, we present asymptotic tendencies of the plants’ biomass content and nitrogen-assimilatory (Nitrate reductase; NR) enzyme activity. In this way, we project the relationship between contaminant accumulation and plants’ measurements. These projections are essential as they can potentially be used for optimization purposes and strategic harvesting planning. Finally, we present a parameter sensitivity analysis to complement the model examination.
AB - Heavy metal contamination of the soil is a global problem that produces different harmful effects from an environmental and public health perspective. Although there have been numerous efforts to solve this problem, there is no precise methodology to decontaminate heavy-metal polluted soils. One of the strategies to develop such methods relies on mathematical modelling. Pursuing this goal, we propose a novel mathematical compartmental model consisting of a linear system of differential equations to address the suitability of the model plant (Chenopodium album L.) for the remediation of contaminated areas, such as sewage sludge lagoons. Our results show a tendency to maintain high concentrations of copper (Cu) in the roots with the possibility of continuing with good plants’ dynamics. Moreover, the model theoretically proposes contaminant concentration in the plants’ shoots and roots and predicts a more prolonged tendency to accumulate copper concentrations in the shoots and disrupt the shoots’ dynamics. These results provide complementary support for the suitability of this model plant to be used in contaminated areas. In addition, we present asymptotic tendencies of the plants’ biomass content and nitrogen-assimilatory (Nitrate reductase; NR) enzyme activity. In this way, we project the relationship between contaminant accumulation and plants’ measurements. These projections are essential as they can potentially be used for optimization purposes and strategic harvesting planning. Finally, we present a parameter sensitivity analysis to complement the model examination.
KW - Chenopodium album L.
KW - Copper-induced stress
KW - Mathematical modelling
KW - Metal contamination
KW - Remediation
KW - Sewage sludge lagoons
UR - http://www.scopus.com/inward/record.url?scp=85128462186&partnerID=8YFLogxK
U2 - 10.1016/j.ecolmodel.2022.109967
DO - 10.1016/j.ecolmodel.2022.109967
M3 - Artículo
AN - SCOPUS:85128462186
SN - 0304-3800
VL - 469
JO - Ecological Modelling
JF - Ecological Modelling
M1 - 109967
ER -