Potential futures for road transportation CO2 emissions in the Asia Pacific

Abstract: Will future transportation carbon dioxide (CO₂) emissions per capita in Asia Pacific economies follow historical trends of the now developed world? Evidence to date is inconclusive. A comparison at similar income levels (purchasing power parity) between recent emissions in Asia Pacific countries and historical emissions in developed countries suggests diverging patterns. (A) High‐income Asia economies (Japan, Hong Kong and Singapore –‘low emitters’) exhibit lower emissions than a selected sample of seven developed countries (United States, Australia, France, the Netherlands, Italy, Sweden and United Kingdom). (B) Another set of Asian countries (South Korea and Taiwan –‘medium emitters’) follow the emissions trends of European countries, which are lower than those of Australia and the United States. (C) A third Asian group (Malaysia and Thailand –‘high emitters’) exhibit emission trends comparable to that of Australia. We describe these trends, examine their causes and extrapolate likely futures for emissions in low‐income Asia Pacific economies (China, Indonesia, Philippines and Vietnam). Although such predictions are speculative, the available evidence suggests that road CO₂ emissions for Indonesia, the Philippines and Vietnam will follow those of the third group (high emitters), while those for China may follow either Group B or Group C.     

城市社区消防安全宣传的作用与要点

消防工作的方针是＂预防为主、防消结合＂。消防宣传教育,直接关系到民生及社会和谐与安定,是消防工作的重要组织部分和重要内容。随着城市化发展,社区消防安全宣传教育的重要性凸显。做好社区消防安全宣传教育工作,须抓住三要点：一是对消防法规要多形式宣传普及、多措施贯彻实施;二是提高社区物业管理水平,使物业公司认真履行消防安全职责;三是提高社区居民消防安全意识与防火消灾自救技能。     

城市天然气管道不停输施工技术

城市燃气化建设速度的加快带动了天然气配套管网建设工作的展开,城市地下天然气管网的安装和不停输改造工作也越来越频繁.考虑到城市人口稠密、各类企事业单位分布相对集中的特点,正确应用施工技术并切实抓好安全工作则是这项工作的重中之重.介绍了城市天然气管网不停输改造施工技术,叙述了一次成功的天然气管网不停输改造施工实例.     

对公路桥头跳车原因与防治浅见

分析了桥头跳车的危害及原因,论述了软土地基加固处理、桥头搭板刚柔过渡、台背填料的选择等综合治理桥头跳车的方法和经验。     

Urbanization Development under Climate Change: Hydrological Responses in a Peri‐Urban Mediterranean Catchment

Relatively few studies have so far investigated the hydrological impacts of urbanization in Mediterranean catchments, and particularly in peri‐urban catchments experiencing relatively rapid and large changes in their land‐use mosaic. This study uses data‐based model simulations to investigate such impacts, with the Ribeira dos Covões catchment in Portugal as a concrete Mediterranean peri‐urban catchment example. We distinguish the impacts of urbanization from those of climatic change on the water flux partitioning and connectivity in the catchment over the period 1958–2013. Decrease in precipitation over this period has primarily driven decreases in annual runoff and actual evapotranspiration, while the urbanization development has primarily changed the relative flux partitioning and connectivity pattern in the catchment. The relative contribution of overland flow to annual and seasonal runoff has increased, keeping the absolute overland flow more or less intact, while the baseflow contribution to the stream network has decreased. Methodologically, the present simulation approach provides a relevant means for distinguishing main drivers of change in hydrological flux partitioning and connectivity under concurrent urbanization and climatic changes. © 2017 The Authors. Land Degradation & Development Published by John Wiley & Sons Ltd.     

株洲市几种常用绿化植物滞尘能力初探

对株洲市16个常用绿化植物滞尘能力进行测定,结果表明:阔叶乔木树种单位面积滞尘量为广玉兰>棕榈>大叶樟>香樟>杜英>栾树>枫香>悬柃木;阔叶灌木树种单位面积滞尘量为春鹃>红花檵木>红叶李>山茶花>珊瑚树>小叶女贞>十大功劳>桂花。     

城市林业研究进展

城市林业是研究城市森林生态系统的一门综合性学科。城市森林在改善城市环境、促进城市可持续发展等方面具有重要作用。文章阐述了城市林业的起源、功能与作用等，并论述了城市林业与其它学科间的区别与联系，探讨了我国城市林业的发展对策。     

关于林道开发效率评价的研究

本文在论证和分析影响林道开发效率的主要因子的基础上,提出了用林道开发效率系数来评价林道开发效率的方法。这是评价林道开发效率的一种简单而实用的新方法。研究结果表明,按林道开发效率系数趋近于1时所对应的路同密度来修建林道,可获得最佳的伐区开发效率。     

林区汽车液体粘性辅助制动系统研究

提出了一种新型的林区汽车辅助制动系统——液体粘性辅助制动系统，详细介绍了其制动原理，通过建立数学模型对其制动性能进行分析，并给出了在两种典型的林区路况下该辅助制动系统作用时车辆系统动态响应的计算机仿真结果.     

湖北省高等院校干道绿化和广场绿化建设的探讨

科学进行干道和广场的绿化规划与树种选择 ,对全面提升校园景观质量具有重要的意义。结合当前湖北地区部分高校干道绿化和校园广场绿化建设中存在的一些问题 ,介绍了干道和广场的绿化规划和树种选择原则 ,并详细探讨了适合湖北地区高校种植的干道绿化树种和广场绿化植物。