An integrated modelling framework for regulated river systems

2013 ◽  
Vol 39 ◽  
pp. 81-102 ◽  
Author(s):  
Wendy D. Welsh ◽  
Jai Vaze ◽  
Dushmanta Dutta ◽  
David Rassam ◽  
Joel M. Rahman ◽  
...  
Keyword(s):  
Regulated River ◽  
Integrated Modelling ◽  
River Systems ◽  
Modelling Framework

scholarly journals Assessing biophysical and socio-economic impacts of climate change on regional avian biodiversity

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Simon Kapitza ◽  
Pham Van Ha ◽  
Tom Kompas ◽  
Nick Golding ◽  
Natasha C. R. Cadenhead ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Change Impacts ◽  
Integrated Modelling ◽  
Land Use Patterns ◽  
Economic Changes ◽  
Use Patterns ◽  
Modelling Framework ◽  
Avian Biodiversity ◽  
Biodiversity Change ◽  
Impacts Of Climate Change

AbstractClimate change threatens biodiversity directly by influencing biophysical variables that drive species’ geographic distributions and indirectly through socio-economic changes that influence land use patterns, driven by global consumption, production and climate. To date, no detailed analyses have been produced that assess the relative importance of, or interaction between, these direct and indirect climate change impacts on biodiversity at large scales. Here, we apply a new integrated modelling framework to quantify the relative influence of biophysical and socio-economically mediated impacts on avian species in Vietnam and Australia and we find that socio-economically mediated impacts on suitable ranges are largely outweighed by biophysical impacts. However, by translating economic futures and shocks into spatially explicit predictions of biodiversity change, we now have the power to analyse in a consistent way outcomes for nature and people of any change to policy, regulation, trading conditions or consumption trend at any scale from sub-national to global.

scholarly journals How model paradigms affect our representation of future land-use change

2020 ◽  
Author(s):  
Calum Brown ◽  
Ian Holman ◽  
Mark Rounsevell
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
System Development ◽  
Active Management ◽  
Integrated Modelling ◽  
Agent Based Model ◽  
Agent Based ◽  
Modelling Framework ◽  
Land Use Models ◽  
Landscape Scales

Abstract. Land use models operating at regional to global scales are almost exclusively based on the single paradigm of economic optimisation. Models based on different paradigms are known to produce very different results, but these are not always equivalent or attributable to particular assumptions. In this study, we compare two pan-European land use models that are based on the same integrated modelling framework and utilise the same climatic and socio-economic scenarios, but which adopt fundamentally different model paradigms. One of these is a constrained optimising economic-equilibrium model and the other is a stochastic agent-based model. We run both models for a range of scenario combinations and compare their projections of spatial and aggregate land use change and ecosystem service supply. We find that the agent-based model projects more multifunctional and heterogeneous landscapes in most scenarios, providing a wider range of ecosystem services at landscape scales, as agents make individual, time-dependent decisions that reflect economic and non-economic motivations. This tendency also results in food shortages under certain scenario conditions. The optimisation model, in contrast, maintains food supply through intensification of agricultural production in the most profitable areas, sometimes at the expense of active management in large, contiguous parts of Europe. We relate the principal differences observed to underlying model assumptions, and hypothesise that optimisation may be appropriate in scenarios that allow for coherent political and economic control of land systems, but not in scenarios where economic and other scenario conditions prevent the normal functioning of price signals and responses. In these circumstances, agent-based modelling allows explicit consideration of behavioural processes, but in doing so provides a highly flexible account of land system development that is harder to link to underlying assumptions. We suggest that structured comparisons of parallel, transparent but paradigmatically distinct models are an important method for better understanding the potential scope and uncertainties of future land use change.

scholarly journals Options for reforming agricultural subsidies from health, climate, and economic perspectives

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
M. Springmann ◽  
F. Freund
Keyword(s):  
Climate Change ◽  
Food Systems ◽  
Food System ◽  
Global Scale ◽  
Integrated Modelling ◽  
Agricultural Subsidies ◽  
Sustainable Food ◽  
Equal Distribution ◽  
Modelling Framework ◽  
Economic Perspectives

AbstractAgricultural subsidies are an important factor for influencing food production and therefore part of a food system that is seen as neither healthy nor sustainable. Here we analyse options for reforming agricultural subsidies in line with health and climate-change objectives on one side, and economic objectives on the other. Using an integrated modelling framework including economic, environmental, and health assessments, we find that on a global scale several reform options could lead to reductions in greenhouse gas emissions and improvements in population health without reductions in economic welfare. Those include a repurposing of up to half of agricultural subsidies to support the production of foods with beneficial health and environmental characteristics, including fruits, vegetables, and other horticultural products, and combining such repurposing with a more equal distribution of subsidy payments globally. The findings suggest that reforming agricultural subsidy schemes based on health and climate-change objectives can be economically feasible and contribute to transitions towards healthy and sustainable food systems.

scholarly journals Castles built on sand or predictive limnology in action? Part A: Evaluation of an integrated modelling framework to guide adaptive management implementation in Lake Erie

2019 ◽  
Vol 53 ◽  
pp. 100968 ◽  
Author(s):  
George B. Arhonditsis ◽  
Alex Neumann ◽  
Yuko Shimoda ◽  
Dong-Kyun Kim ◽  
Feifei Dong ◽  
...  
Keyword(s):  
Adaptive Management ◽  
Lake Erie ◽  
Integrated Modelling ◽  
Modelling Framework

scholarly journals Thermal extremes in regulated river systems under climate change: an application to the southeastern U.S. rivers

2020 ◽  
Vol 15 (9) ◽  
pp. 094012
Author(s):  
Yifan Cheng ◽  
Nathalie Voisin ◽  
John R Yearsley ◽  
Bart Nijssen
Keyword(s):  
Climate Change ◽  
Regulated River ◽  
River Systems

scholarly journals Dynamics of immature mAb glycoform secretion during CHO cell culture: An integrated modelling framework

2016 ◽  
Vol 11 (5) ◽  
pp. 610-623 ◽  
Author(s):  
Ioscani Jimenez del Val ◽  
Yuzhou Fan ◽  
Dietmar Weilguny
Keyword(s):  
Cell Culture ◽  
Integrated Modelling ◽  
Cho Cell ◽  
Modelling Framework ◽  
Cho Cell Culture
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