Future supply and demand of net primary production in the Sahel

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Future supply and demand of net primary production in the Sahel. / Sallaba, F.; Olin, S.; Engström, K.; Abdi, A. M.; Boke-Olén, N.; Lehsten, V.; Ardö, J.; Seaquist, J. W.

I: Earth System Dynamics, Bind 8, Nr. 4, 2017, s. 1191-1221.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Sallaba, F, Olin, S, Engström, K, Abdi, AM, Boke-Olén, N, Lehsten, V, Ardö, J & Seaquist, JW 2017, 'Future supply and demand of net primary production in the Sahel', Earth System Dynamics, bind 8, nr. 4, s. 1191-1221. https://doi.org/10.5194/esd-8-1191-2017

APA

Sallaba, F., Olin, S., Engström, K., Abdi, A. M., Boke-Olén, N., Lehsten, V., Ardö, J., & Seaquist, J. W. (2017). Future supply and demand of net primary production in the Sahel. Earth System Dynamics, 8(4), 1191-1221. https://doi.org/10.5194/esd-8-1191-2017

Vancouver

Sallaba F, Olin S, Engström K, Abdi AM, Boke-Olén N, Lehsten V o.a. Future supply and demand of net primary production in the Sahel. Earth System Dynamics. 2017;8(4):1191-1221. https://doi.org/10.5194/esd-8-1191-2017

Author

Sallaba, F. ; Olin, S. ; Engström, K. ; Abdi, A. M. ; Boke-Olén, N. ; Lehsten, V. ; Ardö, J. ; Seaquist, J. W. / Future supply and demand of net primary production in the Sahel. I: Earth System Dynamics. 2017 ; Bind 8, Nr. 4. s. 1191-1221.

Bibtex

@article{e8bc0b31f899470ebb6239942eab538d,
title = "Future supply and demand of net primary production in the Sahel",
abstract = "Here we apply an exploratory modelling framework to analyse the variations in the timing and geography of different NPP (net primary production) supply–demand scenarios, with distinct assumptions determining supply and demand, for the 21st century Sahel. We achieve this by coupling a simple NPP supply model forced with projections from four representative concentration pathways with a global, reduced-complexity demand model driven by socio-economic data and assumptions derived from five shared socio-economic pathways.For the scenario that deviates least from current socio-economic and climate trends, we find that per capita NPP begins to outstrip supply in the 2040s, while by 2050 half the countries in the Sahel experience NPP shortfalls. We also find that despite variations in the timing of the onset of NPP shortfalls, demand cannot consistently be met across the majority of scenarios. Moreover, large between-country variations are shown across the scenarios, in which by the year 2050 some countries consistently experience shortage or surplus, while others shift from surplus to shortage. At the local level (i.e. grid cell), hotspots of total NPP shortfall consistently occur in the same locations across all scenarios but vary in size and magnitude. These hotspots are linked to population density and high demand. For all scenarios, total simulated NPP supply doubles by 2050 but is outpaced by increasing demand due to a combination of population growth and the adoption of diets rich in animal products. Finally, variations in the timing of the onset and end of supply shortfalls stem from the assumptions that underpin the shared socio-economic pathways rather than the representative concentration pathways.Our results suggest that the UN sustainable development goals for eradicating hunger are at high risk for failure. This emphasizes the importance of policy interventions such as the implementation of sustainable and healthy diets, family planning, reducing yield gaps, and encouraging the transfer of resources to impoverished areas via trade relations.",
author = "F. Sallaba and S. Olin and K. Engstr{\"o}m and Abdi, {A. M.} and N. Boke-Ol{\'e}n and V. Lehsten and J. Ard{\"o} and Seaquist, {J. W.}",
year = "2017",
doi = "10.5194/esd-8-1191-2017",
language = "English",
volume = "8",
pages = "1191--1221",
journal = "Earth System Dynamics",
issn = "2190-4979",
publisher = "Copernicus GmbH",
number = "4",

}

RIS

TY - JOUR

T1 - Future supply and demand of net primary production in the Sahel

AU - Sallaba, F.

AU - Olin, S.

AU - Engström, K.

AU - Abdi, A. M.

AU - Boke-Olén, N.

AU - Lehsten, V.

AU - Ardö, J.

AU - Seaquist, J. W.

PY - 2017

Y1 - 2017

N2 - Here we apply an exploratory modelling framework to analyse the variations in the timing and geography of different NPP (net primary production) supply–demand scenarios, with distinct assumptions determining supply and demand, for the 21st century Sahel. We achieve this by coupling a simple NPP supply model forced with projections from four representative concentration pathways with a global, reduced-complexity demand model driven by socio-economic data and assumptions derived from five shared socio-economic pathways.For the scenario that deviates least from current socio-economic and climate trends, we find that per capita NPP begins to outstrip supply in the 2040s, while by 2050 half the countries in the Sahel experience NPP shortfalls. We also find that despite variations in the timing of the onset of NPP shortfalls, demand cannot consistently be met across the majority of scenarios. Moreover, large between-country variations are shown across the scenarios, in which by the year 2050 some countries consistently experience shortage or surplus, while others shift from surplus to shortage. At the local level (i.e. grid cell), hotspots of total NPP shortfall consistently occur in the same locations across all scenarios but vary in size and magnitude. These hotspots are linked to population density and high demand. For all scenarios, total simulated NPP supply doubles by 2050 but is outpaced by increasing demand due to a combination of population growth and the adoption of diets rich in animal products. Finally, variations in the timing of the onset and end of supply shortfalls stem from the assumptions that underpin the shared socio-economic pathways rather than the representative concentration pathways.Our results suggest that the UN sustainable development goals for eradicating hunger are at high risk for failure. This emphasizes the importance of policy interventions such as the implementation of sustainable and healthy diets, family planning, reducing yield gaps, and encouraging the transfer of resources to impoverished areas via trade relations.

AB - Here we apply an exploratory modelling framework to analyse the variations in the timing and geography of different NPP (net primary production) supply–demand scenarios, with distinct assumptions determining supply and demand, for the 21st century Sahel. We achieve this by coupling a simple NPP supply model forced with projections from four representative concentration pathways with a global, reduced-complexity demand model driven by socio-economic data and assumptions derived from five shared socio-economic pathways.For the scenario that deviates least from current socio-economic and climate trends, we find that per capita NPP begins to outstrip supply in the 2040s, while by 2050 half the countries in the Sahel experience NPP shortfalls. We also find that despite variations in the timing of the onset of NPP shortfalls, demand cannot consistently be met across the majority of scenarios. Moreover, large between-country variations are shown across the scenarios, in which by the year 2050 some countries consistently experience shortage or surplus, while others shift from surplus to shortage. At the local level (i.e. grid cell), hotspots of total NPP shortfall consistently occur in the same locations across all scenarios but vary in size and magnitude. These hotspots are linked to population density and high demand. For all scenarios, total simulated NPP supply doubles by 2050 but is outpaced by increasing demand due to a combination of population growth and the adoption of diets rich in animal products. Finally, variations in the timing of the onset and end of supply shortfalls stem from the assumptions that underpin the shared socio-economic pathways rather than the representative concentration pathways.Our results suggest that the UN sustainable development goals for eradicating hunger are at high risk for failure. This emphasizes the importance of policy interventions such as the implementation of sustainable and healthy diets, family planning, reducing yield gaps, and encouraging the transfer of resources to impoverished areas via trade relations.

U2 - 10.5194/esd-8-1191-2017

DO - 10.5194/esd-8-1191-2017

M3 - Journal article

VL - 8

SP - 1191

EP - 1221

JO - Earth System Dynamics

JF - Earth System Dynamics

SN - 2190-4979

IS - 4

ER -

ID: 225489135