加强城市环境风险管理,促进和谐社会建设

针对我国目前非正常死亡长期据高不下现状,分析了小尺度环境安全问题成因特点,提出用加强城市环境风险管理作为对策,并具体讨论了环境安全标准、环境安全责任、环境安全立法、环境安全经济、环境安全管理、环境安全科研等相关问题。     

Using Twitter to communicate conservation science from a professional conference

Scientists are increasingly using Twitter as a tool for communicating science. Twitter can promote scholarly discussion, disseminate research rapidly, and extend and diversify the scope of audiences reached. However, scientists also caution that if Twitter does not accurately convey science due to the inherent brevity of this media, misinformation could cascade quickly through social media. Data on whether Twitter effectively communicates conservation science and the types of user groups receiving these tweets are lacking. To address these knowledge gaps, we examined live tweeting as a means of communicating conservation science at the 2013 International Congress for Conservation Biology (ICCB). We quantified and compared the user groups sending and reading live tweets. We also surveyed presenters to determine their intended audiences, which we compared with the actual audiences reached through live tweeting. We also asked presenters how effectively tweets conveyed their research findings. Twitter reached 14 more professional audience categories relative to those attending and live tweeting at ICCB. However, the groups often reached through live tweeting were not the presenters’ intended audiences. Policy makers and government and non‐governmental organizations were rarely reached (0%, 4%, and 6% of audience, respectively), despite the intent of the presenters. Plenary talks were tweeted about 6.9 times more than all other oral or poster presentations combined. Over half the presenters believed the tweets about their talks were effective. Ineffective tweets were perceived as vague or missing the presenters’ main message. We recommend that presenters who want their science to be communicated accurately and broadly through Twitter should provide Twitter‐friendly summaries that incorporate relevant hashtags and usernames. Our results suggest that Twitter can be used to effectively communicate speakers’ findings to diverse audiences beyond conference walls.     

关于地震预报战略思想的几点思考

在国内外地震学界,围绕要不要公开进行地震预报,能不能承担社会性地震预报的重任,长期争论不休。其内在的原因是地震灾害的影响,地震科研的特点,特别是现阶段地震预报水平过低。在地震预报难度甚大,而实际工作中又不能放弃的形势下,应采取适当的地震预报战略。正确评价、正面宣传地震预报水平,以综合减灾措施支持地震预报,严格把好社会性短临预报关口,掌握好内部预测意见向社会发布的过渡是十分重要的。     

沈阳市建立资源循环型社会的思考

简要分析了沈阳这一特大城市建立资源循环型社会的必要性 ,对如何尽快形成资源循环型体系提出了主要对策     

关于积极推进生态城市建设的对策建议

介绍了沈阳市在生态城市建设中的成绩 ,提出积极推进生态城市建设中要切实注重的几个问题———进一步完善森林城市生态规划 ,提高水资源利用率 ,建设节水型社会 ,保护地下水 ,使人民群众喝上安全合格的水 ,提出对策建议。     

我国水资源学术交流十年总结与展望

水资源是基础性的自然资源和战略性的经济资源,是一个国家综合国力的有机组成部分。目前,国家已将水资源列为与粮食、石油资源并列的三大战略资源之一。随着经济社会快速发展,水资源供需矛盾越来越突出,水资源已成为制约国民经济发展的重大"瓶颈"。因此,水资源研究已成为支撑我国可持续发展的重要学科领域。论文在大量文献分析的基础上,阐述了水资源研究发展过程;介绍了近十年来中国自然资源学会水资源专业委员会主办的主要学术交流情况,总结了近期我国水资源研究进展;在以上分析的基础上,对水资源学科发展趋势进行了分析,并对近期水资源研究进行展望,提出未来十年我国水资源学术交流发展方向。     

Optimization of the recovery of plastics for recycling by density media separation cyclones

Material recovery processes are presented as the optimum option for recycling plastic wastes as a means of recovering hydrocarbon resources. There exist a large variety of automated material recovery processes for recycling of such wastes but each with significant limitations. Of these, the separation based on differences in densities is advocated as the optimum process either for producing recycled products or preparing wastes for subsequent recovery processing.Density separation processes based on cyclone type density media separation (DMS) is presented as an important, potential method for increasing plastics recycling process capacities. It is demonstrated to have the capacity to separate a significantly larger range of particle sizes than those presently processed industrially. The mathematical relationship for the prediction of quality of typical LARCODEMS type density media separations by particle size and density as expressed by the Ecart Probable is presented.A proposed device configuration is presented for density media separation to optimize the recovery and purity of both density fractions produced. It is also suggested that to be economically viable, a large scale of operation is required for industrial plastics recycling operations recovering and producing a number of different plastics with a purity to be used as a substitute for virgin material.     

中国古代生态哲学思想对当今社会生态文明建设的启示

党的十七大提出了建设生态文明的重大战略,将调整产业结构,转变发展方式,加强环境保护作为关系全局的重大任务,使生态文明的理论成为中国特色社会主义理论的重要内容。本文审视了中国古代生态哲学思想的内涵,探讨了当今社会生态文明建设与中国古代生态哲学思想的理论渊源,提出了中国古代生态哲学思想是当今社会生态文明建设的理论依据,阐明了中国古代生态哲学思想对当今社会生态文明建设的启示。     

西方环境社会学研究的三种范式

西方环境社会学至今主要形成三种影响较大的研究范式：即新生态范式、马克思主义政治经济学范式、建构主义范式。这些研究范式为环境社会学实践问题的解答提供了不同的立论基点和研究的方法论。     

基于生态补偿的社会经济发展调控研究-以深圳水库为例

深圳水库负责深港地区的供水,其中向香港地区的供水占香港总用水量的70%左右,战略地位极其重要。然而,深圳水库却面临水华爆发的危险。除东江来水的原因外,水库周边区域的社会经济活动构成了水库水质恶化的根源。因此本文提出了基于生态补偿的社会经济调控,以期达到保证深港地区的供水安全的目的。