A System Dynamics Approach for Digital Sustainability Assessment

Author(s):  
Gazal Singh ◽  
Sanjay Bhushan ◽  
Shalini Nigam
2018 ◽  
Vol 10 (4) ◽  
pp. 938-952 ◽  
Author(s):  
Elham Ebrahimi Sarindizaj ◽  
Mahdi Zarghami

Abstract During the last decade, Urmia Lake has lost most of its surface area. As a result, finding management practices to restore the sustainable ecological status of Urmia Lake, the world's second largest hyper-saline lake, is imperative. In this study, the sustainability of different plans under climate change was assessed using system dynamics. The plans were evaluated with respect to sustainability criteria including reliability, resiliency, and vulnerability measures. According to the results due to different management practices, on average, water consumption should be reduced by at least 30% to restore the lake. The results revealed that only hybrid plans which incorporate multiple management practices, instead of focusing on just one approach, can be influential. Among the hybrid plans, that of increasing irrigation efficiency, reducing cultivated area, changing crop pattern, and inter-basin water transfer was identified as the most sustainable plan. About eight years after applying this plan, the lake will achieve its ecological level and will remain sustainable. Considering comprehensive factors, the proposed model can help watershed managers to take the necessary measures to restore this vital ecosystem. The results of this study can be applied to water resources systems with the same problem, especially those in semi-arid regions with multidisciplinary aspects.


2017 ◽  
Vol 141 ◽  
pp. 1145-1163 ◽  
Author(s):  
A. Espinoza ◽  
S. Bautista ◽  
P.C. Narváez ◽  
M. Alfaro ◽  
M. Camargo

Technology assessment has reformed in nature over the last four decades from an analytical tool for technology evaluation, which relies extensively on quantitative and qualitative modelling methods to strategic plan tool for policy creation regarding satisfactory new technologies, that based on participative policy problematic investigation. The aim of assessing technology today is to make policy choices for solutions to organizational and social problems. which, at the workable level, use innovative technologies which considered publicly acceptable, that is, practical policy decisions. This paper concentrates on the progressing of a framework that joins a technology valuation method, namely, system dynamics, inside the larger opportunity of technology growth for sustainability. The framework, called system method to technology sustainability assessment (SATSA), joining three main fundamentals: technology progress, sustainable progress, and dynamic systems method. The article after that determines the framework of integrating the system dynamics procedure in energy technology assessment philosophy and exercise inside the framework of sustainable growth. The framework offers for technology sustainability assessment, which can direct the upgrade of sustainable energy technologies at a policy class. Additionally, it can support the technology inventors to understand the possible effects of technology, therefore allowing them to decrease technology transmission hazards.


Energy ◽  
2011 ◽  
Vol 36 (12) ◽  
pp. 6922-6940 ◽  
Author(s):  
Josephine K. Musango ◽  
Alan C. Brent ◽  
Bamikole Amigun ◽  
Leon Pretorius ◽  
Hans Müller

2019 ◽  
Vol 11 (17) ◽  
pp. 4609 ◽  
Author(s):  
Supradianto Nugroho ◽  
Takuro Uehara ◽  
Yori Herwangi

Sustainability assessments of marine protected areas (MPAs) are essential for improving the effectiveness of management efforts. Since sustainability is closely related to the concept of intergenerational well-being, measuring and tracking it through time is crucial. Therefore, this study will use the system dynamics approach applied at Pieh marine park as the study site. A system dynamics model was built comprising four sub-models: fish population dynamics, coral reef coverage, tourism, and pollution. The goodness-of-fit test of the model indicated low and unsystematic model error. The sustainability assessment was conducted using the three principles of sustainability proposed by Herman Daly, which define sustainability for resource management based on the change in the amount of renewable resources, non-renewable resources, and pollution. The sustainability assessment determined that Pieh marine park cannot sustain economic activities in its area, indicated by decreasing renewable resource indicators in the form of fish population dynamics, coral reef coverage, and increasing pollution levels. Several management interventions can be applied to improve sustainability, including lowering the total allowable catch, coral transplantation, and improved waste management.


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