There is a growing need for both science and practice domains to collaboratively and systematically seek knowledge-based strategies for sustainable development. In recent years, transdisciplinary research has emerged ...There is a growing need for both science and practice domains to collaboratively and systematically seek knowledge-based strategies for sustainable development. In recent years, transdisciplinary research has emerged as a new approach that enables joint problem solving among scientists and stakeholders in various fields. In this paper, we aim to introduce transdisciplinary research for supporting the integration of the concept of eco- system services into land and water management in the Tarim River Basin, Xinjiang, Northwest China. While a large number of ecosystem service studies have helped to raise the awareness for the value of nature in China, a number of challenges remain, including an improved understanding of the relationships between ecosystem structure, functions and services, and the interaction of the various ecosystem services. A meaningful valuation of ecosystem services also requires the consideration of their strong spatial heterogeneity. In addition, ways to introduce the con- cept of ecosystem services into decision-making in China need to be explored. Thus, successful integration of the concept of ecosystem services into actual land and water management requires a broad knowledge base that only a number of scientific disciplines and stakeholders can provide jointly, via a transdisciplinary research process. We regard transdisciplinary research as a recursive process to support adaptive management that includes joint knowledge generation and integration among scientists and stakeholders. System, target, and transformation knowledge are generated and integrated during the process of （1） problem （re）definition, （2） problem analysis and strategy development, and （3） evaluation of the impact of the derived strategy. Methods to support transdisciplinary research comprise participatory modelling （actor-based modelling and Bayesian Networks modelling） and partici- patory scenario development. Actor-based modelling is a semi-quantitative method that is based on the analysis of problem perspectives of individual stakeholders as depicted in perception graphs. With Bayesian Networks, com- plex problem fields are modelled probabilistically in a simplified manner, using both quantitative data and qualitative expert judgments. These participatory methods serve to integrate diverse scientific and stakeholder knowledge and to support the generation of actually implementable management strategies for sustainable development. For the purpose of integrating ecosystem services in land and water management in the Tarim River Basin through trans- disciplinary research, collaboration among scientists and institutional stakeholders from different sectors including water, agriculture, forestry, and nature conservation is required. The challenge is to adapt methods of transdisci- plinary research to socio-cultural conditions in China, particularly regarding ways of communication and deci- sion-making.展开更多
Introduction:Ecosystem goods and services(EGS)studies have had little impact on policy processes and real-world decision-making due to limited understanding of the interactions and feedbacks among ecological,social an...Introduction:Ecosystem goods and services(EGS)studies have had little impact on policy processes and real-world decision-making due to limited understanding of the interactions and feedbacks among ecological,social and economic processes.Here we present an inter-and transdisciplinary analysis of global change impacts on EGS provision in a European mountain region.Our aim is to evaluate the projected influence of ecological,economic and social drivers on future EGS provision and to show possible ways to address the predominant limitations of EGS studies.Methods:The integrated findings from ecological experiments,mechanistic models of landscape dynamics,socio-economic land-use models,policy analysis and transdisciplinary stakeholder interactions are presented consecutively.Four regionally downscaled global change scenarios,for a case study region near Visp,Switzerland(350 km2),were used to examine the impacts of climate and socio-economic changes on four ecosystem services,i.e.,food provision,timber production,net greenhouse gas emissions and protection from natural hazards.Results:Our simulation results reveal four key aspects that influence the future provision of mountain EGS.First,we show the high spatial and temporal heterogeneity of EGS provision even in a small case study region.Second,we find that climate change impacts are much more pronounced for forest EGS,while changes to agricultural EGS result primarily from shifts in economic conditions.Third,our modeling results reveal the complex trade-offs associated with the different scenarios.Fourth,simulations illustrate the importance of interactions between environmental shifts and economic decisions.We discuss our simulation results with respect to both existing policy networks and transdisciplinary stakeholder interactions.Conclusion:We describe a framework based on experiments and observations that effectively supports the integration of ecological processes into an integrative modeling chain of EGS provision in mountain regions,the political decision-making process and also transdisciplinary stakeholder interactions.展开更多
More customers are tending to install batteries with photovoltaic(PV), so they can better control their electricity bills. In this context, customers may be tempted to go offgrid at a substantial up-front cost, leadin...More customers are tending to install batteries with photovoltaic(PV), so they can better control their electricity bills. In this context, customers may be tempted to go offgrid at a substantial up-front cost, leading electricity companies into a death spiral, thereby raising electricity price further on those remaining on grid. Neighborhood energy markets can promote the sharing of locally generated renewable energy and encourage prosumers to stay on grid with financial incentives. A novel neighborhood energy trading(NET) mechanism is developed using the topology of existing radial distribution network to encourage sustainable energy sharing in neighborhood and encourage prosumers to stay on grid. This mechanism considers loss, congestion management, and voltage regulation, and it is scalable with low computation and communication overhead.An IEEE test system is used to validate the NET mechanism.The simulation shows that the price and flow results are obtained with fast computation speed(within 10 iterations) and with loss reflected, flow limit reinforced, and voltage regulated.This study proves that the economic demand-supply-based pricing mechanism can be applied effectively in distribution networks to help encourage more renewable energy sharing in sustainable neighborhood and avoid energy network death spiral.展开更多
基金funded by the German Federal Ministry of Education and Research(BMBF)
文摘There is a growing need for both science and practice domains to collaboratively and systematically seek knowledge-based strategies for sustainable development. In recent years, transdisciplinary research has emerged as a new approach that enables joint problem solving among scientists and stakeholders in various fields. In this paper, we aim to introduce transdisciplinary research for supporting the integration of the concept of eco- system services into land and water management in the Tarim River Basin, Xinjiang, Northwest China. While a large number of ecosystem service studies have helped to raise the awareness for the value of nature in China, a number of challenges remain, including an improved understanding of the relationships between ecosystem structure, functions and services, and the interaction of the various ecosystem services. A meaningful valuation of ecosystem services also requires the consideration of their strong spatial heterogeneity. In addition, ways to introduce the con- cept of ecosystem services into decision-making in China need to be explored. Thus, successful integration of the concept of ecosystem services into actual land and water management requires a broad knowledge base that only a number of scientific disciplines and stakeholders can provide jointly, via a transdisciplinary research process. We regard transdisciplinary research as a recursive process to support adaptive management that includes joint knowledge generation and integration among scientists and stakeholders. System, target, and transformation knowledge are generated and integrated during the process of （1） problem （re）definition, （2） problem analysis and strategy development, and （3） evaluation of the impact of the derived strategy. Methods to support transdisciplinary research comprise participatory modelling （actor-based modelling and Bayesian Networks modelling） and partici- patory scenario development. Actor-based modelling is a semi-quantitative method that is based on the analysis of problem perspectives of individual stakeholders as depicted in perception graphs. With Bayesian Networks, com- plex problem fields are modelled probabilistically in a simplified manner, using both quantitative data and qualitative expert judgments. These participatory methods serve to integrate diverse scientific and stakeholder knowledge and to support the generation of actually implementable management strategies for sustainable development. For the purpose of integrating ecosystem services in land and water management in the Tarim River Basin through trans- disciplinary research, collaboration among scientists and institutional stakeholders from different sectors including water, agriculture, forestry, and nature conservation is required. The challenge is to adapt methods of transdisci- plinary research to socio-cultural conditions in China, particularly regarding ways of communication and deci- sion-making.
基金This work was supported by the CCES(Competence Centre Environment and Sustainability of the ETH Domain,Switzerland)as part of the Mountland project.
文摘Introduction:Ecosystem goods and services(EGS)studies have had little impact on policy processes and real-world decision-making due to limited understanding of the interactions and feedbacks among ecological,social and economic processes.Here we present an inter-and transdisciplinary analysis of global change impacts on EGS provision in a European mountain region.Our aim is to evaluate the projected influence of ecological,economic and social drivers on future EGS provision and to show possible ways to address the predominant limitations of EGS studies.Methods:The integrated findings from ecological experiments,mechanistic models of landscape dynamics,socio-economic land-use models,policy analysis and transdisciplinary stakeholder interactions are presented consecutively.Four regionally downscaled global change scenarios,for a case study region near Visp,Switzerland(350 km2),were used to examine the impacts of climate and socio-economic changes on four ecosystem services,i.e.,food provision,timber production,net greenhouse gas emissions and protection from natural hazards.Results:Our simulation results reveal four key aspects that influence the future provision of mountain EGS.First,we show the high spatial and temporal heterogeneity of EGS provision even in a small case study region.Second,we find that climate change impacts are much more pronounced for forest EGS,while changes to agricultural EGS result primarily from shifts in economic conditions.Third,our modeling results reveal the complex trade-offs associated with the different scenarios.Fourth,simulations illustrate the importance of interactions between environmental shifts and economic decisions.We discuss our simulation results with respect to both existing policy networks and transdisciplinary stakeholder interactions.Conclusion:We describe a framework based on experiments and observations that effectively supports the integration of ecological processes into an integrative modeling chain of EGS provision in mountain regions,the political decision-making process and also transdisciplinary stakeholder interactions.
基金supported in part by the Australian Research Council Discovery Project (No. 160102570)。
文摘More customers are tending to install batteries with photovoltaic(PV), so they can better control their electricity bills. In this context, customers may be tempted to go offgrid at a substantial up-front cost, leading electricity companies into a death spiral, thereby raising electricity price further on those remaining on grid. Neighborhood energy markets can promote the sharing of locally generated renewable energy and encourage prosumers to stay on grid with financial incentives. A novel neighborhood energy trading(NET) mechanism is developed using the topology of existing radial distribution network to encourage sustainable energy sharing in neighborhood and encourage prosumers to stay on grid. This mechanism considers loss, congestion management, and voltage regulation, and it is scalable with low computation and communication overhead.An IEEE test system is used to validate the NET mechanism.The simulation shows that the price and flow results are obtained with fast computation speed(within 10 iterations) and with loss reflected, flow limit reinforced, and voltage regulated.This study proves that the economic demand-supply-based pricing mechanism can be applied effectively in distribution networks to help encourage more renewable energy sharing in sustainable neighborhood and avoid energy network death spiral.
