Regional Environmental Change - The majority of Eastern China’s herbivorous geese overwinter in the East Dongting Lake, China, and there is growing concern about how changes in their habitats... 相似文献
In this study, a multi-level-factorial risk-inference-based possibilistic-probabilistic programming (MRPP) method is proposed for supporting water quality management under multiple uncertainties. The MRPP method can handle uncertainties expressed as fuzzy-random-boundary intervals, probability distributions, and interval numbers, and analyze the effects of uncertainties as well as their interactions on modeling outputs. It is applied to plan water quality management in the Xiangxihe watershed. Results reveal that a lower probability of satisfying the objective function (θ) as well as a higher probability of violating environmental constraints (qi) would correspond to a higher system benefit with an increased risk of violating system feasibility. Chemical plants are the major contributors to biological oxygen demand (BOD) and total phosphorus (TP) discharges; total nitrogen (TN) would be mainly discharged by crop farming. It is also discovered that optimistic decision makers should pay more attention to the interactions between chemical plant and water supply, while decision makers who possess a risk-averse attitude would focus on the interactive effect of qi and benefit of water supply. The findings can help enhance the model’s applicability and identify a suitable water quality management policy for environmental sustainability according to the practical situations.
To decouple economic growth from environmental degradation, the Chinese government proposed the circular economy (CE) strategy
as part of its 11th 5-Year Plan. This strategy expands the application of CE from individual enterprises to eco-industrial
parks (EIPs) and to the cities, provinces, and regions. We carried out field studies in three EIPs in Baotou, Suzhou, and
Shanghai. In this paper, we discuss the current state of CE and the sustainable development of EIPs in China. We first provide
detailed information on the three EIPs' infrastructures, preferential policies, CE frameworks, and eco-chains. We then examine
the status of sustainable development in the three EIPs from the perspectives of socio-economic, resource and material efficiency,
and environmental performance. The results indicate that the overall performance of the three EIPs is reasonably good with
respect to socio-economics, resources and materials, and efficiency and environmental protection, whereas green management
is rather weak and thus requires further improvement. We found that the CE frameworks along with eco-chains within the EIPs
are effectively improving resource and material efficiency. Moreover, we demonstrate that there are positive associations
among socio-economic, resource and material, and environmental indicators. Given the large presence of EIPs in the local economies,
these results suggest that EIPs play a key role in promoting sustainable development in China. 相似文献