land systems
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2022 ◽  
Vol 305 ◽  
pp. 114391
Author(s):  
Eva Sinha ◽  
Katherine V. Calvin ◽  
Page G. Kyle ◽  
Mohamad I. Hejazi ◽  
Stephanie T. Waldhoff ◽  
...  
Keyword(s):  

Land ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1172
Author(s):  
Richard Aspinall ◽  
Michele Staiano ◽  
Diane Pearson

Dynamics of arable and pastoral farming systems in Scotland over the period 1867–2020 are documented using time series analysis methods, including for nonlinear dynamical systems. Results show arable and pastoral farming, at a national scale, are dynamic over a range of timescales, with medium- and short-term dynamics associated with endogenous system forces and exogenous factors, respectively. Medium-term dynamics provide evidence of endogenous systems-level feedbacks between farming sectors responding to change in world and national cereal prices as an economic driver, and act to dampen impacts of exogenous shocks and events (weather, disease). Regime shifts are identified in national cereal prices. Results show change and dynamics as emergent properties of system interactions. Changes in dynamics and strength of endogenous dampening over the duration of the study are associated with dynamical changes from major governmental policy decisions that altered the boundary conditions for interdependencies of arable and pastoral farming.


2021 ◽  
Author(s):  
Thomas B. Wild ◽  
Zarrar Khan ◽  
Mengqi Zhao ◽  
Micaela Suriano ◽  
Julia Lacal Bereslawski ◽  
...  
Keyword(s):  

2021 ◽  
Author(s):  
Matthew Binsted ◽  
Gokul Iyer ◽  
Pralit Patel ◽  
Neal Graham ◽  
Yang Ou ◽  
...  

Abstract. This paper describes GCAM-USA v5.3_water_dispatch, an open source model that represents key interactions across economic, energy, water, and land systems in a consistent global framework, with subnational detail in the United States. GCAM-USA divides the world into 31 geopolitical regions outside the United States (U.S.) and represents the U.S. economic and energy systems in 51 state-level regions (50 states plus the District of Columbia). The model also includes 235 water basins and 384 land-use regions; 23 of each fall at least partially within the United States. GCAM-USA offers a level of process and temporal resolution rare for models of its class and scope, including detailed subnational representation of U.S. water demands and supplies and sub-annual operations (day/night for each month) in the U.S. electric power sector. GCAM-USA can be used to explore how changes in socioeconomic drivers, technological progress, or policy impact demands for, and production of, energy, water, and crops at a subnational level in the United States, while maintaining consistency with broader national and international conditions. This paper describes GCAM-USA’s structure, inputs, and outputs, with emphasis on new model features. Four illustrative scenarios encompassing varying socioeconomic and energy system futures are used to explore subnational changes in energy, water, and land-use outcomes. We conclude with information about how public users can access the model.


Author(s):  
M. Piquer-Rodríguez ◽  
N. I. Gasparri ◽  
L. Zarbá ◽  
E. Aráoz ◽  
H. R. Grau
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