A framework to study nearly optimal solutions of linear programming models developed for agricultural land use exploration

Makowski, David; Hendrix, E.M.T.; Ittersum, M.K. van; Rossing, W.A.H.

doi:10.1016/s0304-3800(00)00249-0

Cited by 42 publications

(26 citation statements)

References 23 publications

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“…This is often realised in a finite set of scenarios or through one of the many different predictive computational modelling techniques available (Seppelt and Voinov, 2002). The latter mainly use regular tessellations like regular grids or lattices and support the search for 'optimal' spatial decisions (Martinnez-Falero et al, 1998;Makowski et al, 2000;Seppelt and Voinov, 2002).…”

Section: Gismentioning

confidence: 99%

The role of the spatial dimension within the framework of sustainable landscapes and natural capital

Blaschke

2006

Landscape and Urban Planning

154

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Section: Gismentioning

confidence: 99%

The role of the spatial dimension within the framework of sustainable landscapes and natural capital

Blaschke

2006

Landscape and Urban Planning

154

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“…Kangas et al, 2002;Figueria and Roy, 2002). In the second category, the techniques of linear programming (Makowski et al, 2000), genetic algorithms (Ines et al, 2006), meta modeling (Mousavi and Shourian, 2010), and goal programming (Foued and Sameh, 2001;Agha, 2006;Al-Zahrani and Ahmad, 2004;Yang and Abbaspour, 2007) are more widely used. The first category might not be relevant in this study because it is interview-based and calls for direct participations of decision makers and other stakeholders.…”

Section: Introductionmentioning

confidence: 99%

Analysis of intra-country virtual water trade strategy to alleviate water scarcity in Iran

Faramarzi

Yang

Mousavi

et al. 2010

Hydrol. Earth Syst. Sci.

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Abstract. Increasing water scarcity has posed a major constraint to sustain food production in many parts of the world. To study the situation at the regional level, we took Iran as an example and analyzed how an intra-country "virtual water trade strategy" (VWTS) may help improve cereal production as well as alleviate the water scarcity problem. This strategy calls, in part, for the adjustment of the structure of cropping pattern (ASCP) and interregional food trade where crop yield and crop water productivity as well as local economic and social conditions are taken into account. We constructed a systematic framework to assess ASCP at the provincial level under various driving forces and constraints. A mixedinteger, multi-objective, linear optimization model was developed and solved by linear programming. Data from 1990-2004 were used to account for yearly fluctuations of water availability and food production. Five scenarios were designed aimed at maximizing the national cereal production while meeting certain levels of wheat self-sufficiency under various water and land constraints in individual provinces. The results show that under the baseline scenario, which assumes a continuation of the existing water use and food policy at the national level, some ASCP scenarios could produce more wheat with less water. Based on different scenarios in ASCP, we calculated that 31% to 100% of the total wheat shortage in the deficit provinces could be supplied by the wheat surplus provinces. As a result, wheat deficit provinces would receive 3.5 billion m 3 to 5.5 billion m 3 of virtual water by importing wheat from surplus provinces.

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“…The input values and model structure applied in this study have been validated through peer review [22,47]. c. The capacity of the model to report useful results compared with expected output has been investigated using near-optimal solution space analysis [47,48]. d. The ability of the model to report results that are consistent with real-world observations is presented in Section 4.1.…”

Section: Parameter Valuesmentioning

confidence: 99%

Profitability of Nitrification Inhibitors for Abatement of Nitrate Leaching on a Representative Dairy Farm in the Waikato Region of New Zealand

Doole

Paragahawewa

2011

Water

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Direct policies for the management of nonpoint source pollution are difficult to apply given asymmetric information, spatial and temporal variability, and uncertainty. There is increasing awareness that these limitations may be overcome where profitable mitigation practices are broadly adopted by polluters. Nitrification inhibitors (chemicals applied to paddocks that retard the nitrification process in soils) are a rare example of a mitigation practice that reduces pollutant loads and potentially increases farm profit through promoting pasture production. This study investigates their capacity to achieve both goals to inform policy makers and producers of their potential for simultaneously improving farm profit and water quality. With an assumed 10 percent increase in pasture production in response to nitrification inhibitor application, nitrification inhibitors are a profitable innovation because greater pasture production supports higher stocking rates. Nonetheless, their overall impact on farm profit is low, even when the cost of inhibitors or their impact on subsequent pasture production is substantially altered. However, inhibitors are found to be a critical mitigation practice for farmers posed with decreasing leaching loads to satisfy regulatory requirements. These findings suggest that, despite their shortcomings for nonpoint pollution regulation, direct policies appear to be the only way to OPEN ACCESSWater 2011, 3 1032 motivate producers to account for their impact on environmental values given the current lack of profitable mitigations.

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A framework to study nearly optimal solutions of linear programming models developed for agricultural land use exploration

Cited by 42 publications

References 23 publications

The role of the spatial dimension within the framework of sustainable landscapes and natural capital

The role of the spatial dimension within the framework of sustainable landscapes and natural capital

Analysis of intra-country virtual water trade strategy to alleviate water scarcity in Iran

Profitability of Nitrification Inhibitors for Abatement of Nitrate Leaching on a Representative Dairy Farm in the Waikato Region of New Zealand

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