乡村振兴与新型城镇化耦合协调的动态演进及其驱动机制

重构乡村振兴与新型城镇化的指标体系,采用耦合协调度模型、空间马尔可夫链以及地理加权回归模型,分析了2005—2017年中国30个省（市、自治区）乡村振兴与新型城镇化的耦合协调水平、时空分异格局、空间动态演进以及驱动机制。研究发现：（1）乡村振兴与新型城镇化的耦合协调度呈现“东部高、西南低”的分布特征,中级协调区域逐步向中部扩散,高级协调区域数量不断增加;高级协调类型省（市、自治区）中“乡村振兴滞后型”占大多数,初级协调和濒临失调类型省（市、自治区）中“新型城镇化发展滞后型”居多。（2）耦合协调度的动态演进呈现维持原有状态稳定性的特征,较难实现跨越式转移,处于高级协调阶段的省（市、自治区）存在“俱乐部趋同”现象。向上转移的省（市、自治区）主要集中在中部,向下调整的以北方省（市、自治区）居多;耦合协调较高的省（市、自治区）对邻近省（市、自治区）具有正向溢出效应,而耦合协调度低的省（市、自治区）对周围产生负向效应,且这种影响是不对称的。（3）影响乡村振兴与新型城镇化耦合协调度变化的驱动力空间差异显著,表现出层级带状分布的发展态势。政府驱动、投资驱动、人口驱动呈现南北层级带状分布。消费驱动、收入驱动、产业驱动呈现东西层级带状分布。     

不同供电方式ESP极板电流密度分布研究

介绍了电除尘器极板电泳密度测试方法和装置，测定了不同极距下脉冲供电和直流供电时，沿电晕极线垂直方向、水平方向及整个极板上电流密度的分布结果，得出在同等条件下，脉冲供电的极析电流密度分布比直流供电的更加均匀，有利于改善电除尘器运行。     

农村水利供给的非均衡性与治理制度创新

通过对湖北农田水利供给的非均衡性分析。探寻农田水利供给困境的根源。研究表明：农田水利的集体供给体制越来越难以维系。农户自我供给制加速了集体供给制的衰退；受制度环境．合伙互助供给制只局限于狭小的范围内；农户合作供给行为因制度短缺和资源禀赋约束而难以发展壮大。最后．文章力图提出适宜的农田水利供给制度创新思路。     

Managing climate change risks in New York City’s water system: assessment and adaptation planning

Managing risk by adapting long-lived infrastructure to the effects of climate change must become a regular part of planning for water supply, sewer, wastewater treatment, and other urban infrastructure during this century. The New York City Department of Environmental Protection (NYCDEP), the agency responsible for managing New York City’s (NYC) water supply, sewer, and wastewater treatment systems, has developed a climate risk management framework through its Climate Change Task Force, a government-university collaborative effort. Its purpose is to ensure that NYCDEP’s strategic and capital planning take into account the potential risks of climate change—sea-level rise, higher temperature, increases in extreme events, changes in drought and flood frequency and intensity, and changing precipitation patterns—on NYC’s water systems. This approach will enable NYCDEP and other agencies to incorporate adaptations to the risks of climate change into their management, investment, and policy decisions over the long term as a regular part of their planning activities. The framework includes a 9-step Adaptation Assessment procedure. Potential climate change adaptations are divided into management, infrastructure, and policy categories, and are assessed by their relevance in terms of climate change time-frame (immediate, medium, and long term), the capital cycle, costs, and other risks. The approach focuses on the water supply, sewer, and wastewater treatment systems of NYC, but has wide application for other urban areas, especially those in coastal locations.     

ABORIGINAL PEOPLE’S ATTITUDES TOWARDS PAYING FOR WATER IN A WATER-SCARCE REGION OF AUSTRALIA

In Australia, governments are committed to water infrastructure developments that are both environmentally sustainable and economically viable. Consumption-based pricing is seen as a water conservation strategy. This has significant implications for Aboriginal communities, many of which do not pay for water use and experience economic hardship. This paper outlines attitudes towards paying for water use in five Aboriginal communities in South Australia. Inability to pay for services was a common factor hindering willingness to pay for water. While different factors were raised in different communities, most communities believed that water is a ‘cultural right’ that should not be paid for. The research found that strategies such as communication and community involvement in the decision-making processes around water supply are necessary to facilitate cost recovery and to promote water conservation.     

黔"西电东送"的电力供给与市场需求可靠性分析

贵州省经济发展滞后,但电力资源丰富。发展电力,将贵州省的能源资源优势转化为经济优势,是振兴贵州经济的希望所在。结合贵州西电东送的优势,从供给与需求出发分析了"黔电送粤"的市场可靠性,以及西电东送对贵州经济的拉动作用。     

ASSESSMENT ANALYSIS FOR WATER SUPPLY ALTERNATIVES1

ABSTRACT Providing adequate water supplies of good quality is becoming a serious problem in many areas of the United States. Some of the alternatives proposed for meeting the growing shortage of clean-water or cheap-water are reallocation, reuse, and importation. This paper outlines a methodology to assess all of these water supply alternatives by examining the amount and time-staging for development of water sources. In conceptualizing the problem, sources of supply are classified in three categories: primary or base supplies, secondary or effluent supplies, and supplementary or imported supplies. A model of the water system is formulated as a “transportation problem” in linear programming depicting the possible sources of supply which can be used to satisfy the requirements of various water users. The optimizing objective in the model is to minimize the cost of water under various assumptions for operating the system. A case study of the Salt Lake Qty, Utah, area is used to illustrate the application of the model in obtaining optimal water supply allocations for projected future demands. Assessment of alternatives in the study include redistribution of supplies, time-staging of supplies and related treatment facilities, and sensitivity of allocations to changes in costs.     

Shoreline management and its implications for coastal processes in the eastern part of the Rhône delta

The coastal fringe of the eastern part of the Rhône delta is a large area where activities related to ecological and economical interests have increased since the beginning of the century, including the salt industry of theCompagnie des Salins du Midi et des Salines de l’Est, the industrial complex ofFos-sur-Mer, tourism managed by the local authorities ofPort-Saint-Louis andArles, and dune restoration of the La Gracieuse spit undertaken by thePort Autonome de Marseille. The vulnerability of the area for changes brought about by these activities is linked to the extent of several coastal changes, whereas these changes are related to the physical functioning of the coastal fringe, such as coastal processes, but also to external components such as relative sea-level rise, subsidence, reduction of sediment input, human impact, etc. For many decades, coastline ‘protection’ in the eastern part of the Rhône delta has been undertaken to withstand erosional processes that offset beaches and retreat of the littoral. The use of different engineering structures illustrates the heterogeneity and differences in age of the various management policies. At the eastern side of the Rhône, thePort Autonome de Marseille, dealing with management, has opted for soft engineering structures using fences for dune restoration on the La Gracieuse spit. At the western side of the mouth, theCompagnie des Salins du Midi et des Salines de l’Est has been using hard engineering structures to combat erosion (rocks, groins, tetrapods, etc.). A brief assessment of the management efficiency is presented, including an analysis of the data collected concerning the survey of the zones where the structures were built. Their varying efficiency shows the important role played by the sediment supply to the littoral (solid river discharge) and the coastal hydro-sedimentary processes. In the eastern part of the Rhône river the success of the dune restoration is mainly due to the important sediment supply transported in this area by eastern drift currents. At the western part of the mouth, the decrease of sediment supply linked to erosional processes in the shallow off-shore beach has made the structures more vulnerable, and therefore, the activities of the salt industry. For this last threatened zone, three management scenarios are discussed by taking into account economical, physical and ecological parameters.     

An analysis of the drivers affecting the implementation of green supply chain management

Green supply chain management has emerged as an important organizational philosophy to reduce environmental risks. We develop a model of the drivers affecting the implementation of green supply chain management using an Interpretive Structural Modeling (ISM) framework. The various drivers of green supply chain management (GSCM) are identified based on the GSM literature and on consultations with experts in the industry. The model developed is validated on a case study involving a manufacturing firm in southern India.     

All Fish for China?

In this paper we examine the effect of Gross Domestic Product (GDP) on the level of fish intake in China in comparison with the rest of the world. We also analyse the origin and destination of China’s seafood products in order to understand the main patterns during the last decades. The results show that in the 1961–2011 period the rate of growth of the GDP in China doubled that of other developing regions, while the daily fish intake of China increased fourfold, making China the largest fish consumer in the world. Given the size and scale of China’s role in production, consumption, and global transformation of seafood markets, China is shaping a new era of industrialization in the history of the fishing industry.