城市河道岸坡的生态型修复研究

河道岸坡生态修复已成为建设生态文明城市的重要组成,在通过介绍河道岸坡发展历程、国内外城市河道岸坡改造动态以及现有河道岸坡的修复技术的基础上,提出城市河道岸坡生态型改造模式的建议,打造城市河道“绿色长廊”。     

阴极电极面积和膜面积对H型MFCs产电能力的影响

以生活污水为底物,碳棒作电极,构建H型瓶式微生物燃料电池(microbial fuel cells,MFCs),研究了阴极电极面积和膜面积对电池产电能力的影响.阳极以厌氧污泥作接种体,两室分隔物使用阳离子交换膜(cation exchange membrane,CEM),阳极不使用中介体,阴极使用无催化剂的普通碳电极....     

Prioritizing species conservation programs based on IUCN Green Status and estimates of cost-sharing potential

Over 1 million species around the world are at risk of extinction, and conservation organizations have to decide where to invest their limited resources. Cost-effectiveness can be increased by leveraging funding opportunities and increasing collaborative partnerships to achieve shared conservation goals. We devised a structured decision-making framework to prioritize species’ conservation programs based on a cost–benefit analysis that takes collaborative opportunities into account in an examination of national and global conservation return on investment. Conservation benefit is determined by modifying the novel International Union for the Conservation of Nature Green Status for Species to provide an efficient, high-level measure that is comparable among species, even with limited information and time constraints. We applied this prioritization approach to the Wilder Institute/Calgary Zoo, Canada, a nonprofit organization seeking to increase the number of species it assists with conservation translocations. We sought to identify and prioritize additional species’ programs for which conservation translocation expertise and actions could make the most impact. Estimating the likelihood of cost-sharing potential enabled total program cost to be distinguished from costs specific to the organization. Comparing a benefit-to-cost ratio on different geographic scales allowed decision makers to weigh alternative options for investing in new species’ programs in a transparent and effective manner. Our innovative analysis aligns with general conservation planning frameworks and can be adapted for any organization.     

发展循环经济 建设绿色山西

山西省作为以煤炭为主体的能源大省,资源转型首先还是要立足于煤,在煤炭问题上＂深＂做文章;其次是延伸产业链、培育新兴产业,转变＂一煤独大＂的单一资源主导型产业格局;同时作为国家资源型经济转型发展综合配套改革试验区,应在绿色经济、循环经济、节能环保和低碳发展配套改革方面做出实质性探索,为国家资源型经济转型发展提供先行先试的经验和示范。     

RESPONSE OF GREEN‐AMPT MEIN‐LARSEN SIMULATED RUNOFF VOLUMES TO TEMPORALLY AGGREGATED PRECIPITATION1

ABSTRACT: Data collection frequency in automated systems is user determined and can range from seconds to hours or days. Currently, there is no standard or recommended frequency interval for collecting precipitation data from automated systems for input to event‐based models such as Green‐Ampt Mein‐Larsen (GAML). Data from 47 storm events at seven locations were used to simulate the response of GAML excess rainfall to temporally aggregated precipitation data. No difference in model efficiency was recognized when comparing one‐minute interval data (R²= 1.00) to five‐minute data (R²= 1.00). Very little model efficiency was lost at a 10‐minute (R²= 0.96) interval. After 10‐minutes, decline in efficiency became more rapid with R²= 0.16 at one hour. The combined effect of time interval with respect to drainage area, hydraulic conductivity, maximum 30‐minute intensity, and total precipitation also revealed similar results.     

微生物燃料电池构造研究进展

微生物燃料电池(Microbial fuel cell,MFC)的研究在近几年获得了快速发展.产电微生物在厌氧条件下氧化底物释放电子和质子,电子通过导线传递给阴极,从而在外电路中形成电流,而质子通过质子交换膜进入阴极与电子和氧气结合生成水.微生物燃料电池的研究与应用开发涉及到从微生物、电化学到材料学和环境工程等科学领域的交叉,特别是废水处理能与微生物产电相结合的研究成果,使污水、污泥、垃圾等环境污染物的治理有可能成为生物质能源的生产过程,展示了微生物燃料电池的广泛应用前景.本文着重综述微生物燃料电池在构造上的进展,并介绍了其在水处理中的应用前景.图8参56     

工作流技术在绿色产品设计中的应用

工作流技术是一种反映业务流程的计算机化的模型,是为了在先进计算机环境支持下实现过程集成与过程自动化而建立的由工作流管理系统执行的业务模型。文章在分析绿色设计特点和工作流技术的基础上,给出了绿色产品设计的工作流流程管理系统的具体实施步骤。     

我国绿色银行立法问题探讨

环境要素已成为考量银行业发展的重要指标,为达到社会可持续发展目的 ,从立法的正当性和可行性出发,以环境保护与经济发展关系的视角分析绿色银行立法中的问题.通过规范分析方法发现我国绿色银行在立法层次、软法特征和制度保障方面的问题.对此,通过坚持绿色银行基本理念、推进绿色银行"硬法"和"软法"沟通协调、健全绿色银行制度保障等...     

The role of capital deepening in China’s energy transition

ABSTRACT

This paper provides a theoretical model to explain the causality between China’s energy transition and capital deepening found by the empirical study. We prove that in the equilibrium, China’s energy transition is endogenously determined by capital deepening due to the homogeneity of electricity and the monopolistic competition features of China’s electricity market. Price effect, which is the effect of change in relative factor price, will affect energy transition only if the policy intervenes electricity price in terms of the primary sources from which it is generated. We propose that investment can promote energy transition by stimulating capital deepening which is biased to clean energy development. In this regard, our paper provides a new way of thinking for other developing countries to design an effective energy transition policy.