利用ISO 14000环境管理体系为环境管理服务

通过大力推进ISO14 0 0 0环境管理体系,促进企业利用体系自我管理,利用社会机制监督企业环境管理,同时,通过环境管理体系的运行带动环保产业、环保科研以及认证咨询市场的发展,为环境监测创造新的机遇等等,使体系能够有效地为环境管理服务。     

PE内衬技术在给水管网维修方面应用的探讨

诸多因素造成目前城市的给水管网 ,除了不断新建外还必须对原有管道进行更新、改造。但是更新改造原有管网异常棘手 ,我们通过市场开发与技术研究 ,认为PE内衬技术具有无可比拟的优越性 ,是解决这一问题的最佳途径     

环保管家服务模式在工业园区的应用--以江西省某工业园区为例

环保管家通过系统化、专业化、精细化、定制化的环保服务,可统筹解决环境问题,降低环境风险,提高环境管理体系和水平,是近年来出现的一种新型服务模式。本文以江西省某县级市工业园区为例,分析了传统工业园区在环保管理实际工作过程中存在的问题,同时探讨了环保管家服务应用于工业园区的服务内容和意义,该服务模式可以作为解决园区环保问题的新途径。     

基于VEGETATION数据的区域生态系统质量评价之二——生产能力指数评价

区域生态系统生产能力指数是评价其生态功能的重要指标之一.文章构建了区域生态系统生产能力指数评价模型,并对中国1998～2004年间区域生态系统生产能力进行评价,发现中国各区域生态系统的生产能力在时空发布上差异巨大,在空间上呈现从西北往东南逐级变好的趋势,西北最差.在时间分异上,区域生态系统生产能力呈现明显的季节性发布,尤以北方地区最为明显.     

浅议SaaS模式环境监测信息化建设的可行性

基于国内环境监测行业信息化建设的现状,针对SaaS模式在该领域的应用做可行性分析。介绍了SaaS模式与传统ASP模式的区别,探讨了SaaS模式给环境监测信息化建设带来的选择与机遇,以及其满足各层次多用户需求、实现服务个性化定制、具备快速扩展和恢复能力等优势。结合现阶段环境监测信息化建设采用SaaS模式在政策体制、业务实现、信息技术方面所面临的问题,提出了相应的建议。     

Forest Restoration and Forest Communities: Have Local Communities Benefited from Forest Service Contracting of Ecosystem Management?

Conservation-based development programs have sought to create economic opportunities for people negatively impacted by biological diversity protection. The USDA Forest Service, for example, developed policies and programs to create contracting opportunities for local communities to restore public lands to replace jobs lost from reduced timber harvest. This article examines 12 years of Forest Service land management contracting in western Oregon, Washington, and northern California to evaluate if contractors located in communities near national forests have been awarded more land management contracts and contract value over time. We find that land management contracting spending has declined dramatically and, once we control for intervening factors, we find that local contractors have received a smaller proportion of land management contracts over time.     

History and Development of the NRCS Lag Time Equation1

Abstract: Many of the hydrologic methods that are used in engineering practice today resulted from the Spring Flood of 1936, which blanketed the Northeastern portion of the United States. Because of the flood damage that was caused by this rainfall‐snowmelt event, many federal agencies including the U.S. Army Corp of Engineers and the Soil Conservation Service (SCS) implemented the hydrologic theories that were available in the literature at this time and developed hydrologic procedures for design flow estimation. Sherman had recently published his unit hydrograph theory in 1932, and later in 1938 Snyder, who had been charged by the Water Resource Council to develop a synthetic unit hydrograph, published his famous paper. The SCS unit hydrograph theory was developed by Victor Mockus in the late 1950s. Most if not all of the theories at that time reported the rainfall‐runoff process for floods as a surface phenomenon, and as such those theories all required some type of a timing parameter to estimate watershed response time. This article documents the development of the SCS lag equation.     

Work domain analysis for air traffic controller weather displays

INTRODUCTION: Adverse weather conditions have a major impact on National Airspace System (NAS) operations. They create safety hazards for pilots, constrain the usable airspace for air traffic control (ATC), and reduce the overall capacity of the NAS. A system-wide dissemination of weather information to controllers could theoretically improve safety and efficiency. PROBLEM: However, it is currently unclear what weather information would be beneficial for tactical operations. Furthermore, no previous research has empirically evaluated optimal presentation designs for ATC weather displays. Ill-designed weather displays can cause safety hazards by presenting redundant information (i.e., by increasing the cognitive load) and display clutter (e.g., by interfering with the visual extraction of traffic data). METHOD: In the present paper, we outline our use of cognitive work analysis (CWA) techniques for the assessment of weather information needs for terminal controllers. RESULTS: Specifically, we describe how the CWA modeling tools helped us reveal instances in the terminal domain where weather information is lacking or insufficiently disseminated. We used our CWA results to drive the development of weather display concepts and to set up a high-fidelity simulation capability. IMPACT ON INDUSTRY: By means of high-fidelity simulations, we can empirically evaluate controller weather information needs in order to propose weather displays for increased aircraft safety and efficiency of terminal operations.     

Making It Work: Keys to Successful Collaboration in Natural Resource Management

This paper explores the positive aspects of collaboration in natural resources. Its purpose was to investigate participants' overall attitudes about keys to successful collaboration. The sample for the study consisted of 671 participants involved in 30 collaborative initiatives (CI) with the Forest Service. Using a mailed questionnaire, this study profiled the collaborative initiatives investigating purpose, problems addressed, groups involved, and years in existence. Respondents were queried on their overall perspectives on keys to successful collaboration. A total of more than 300 comments was collected from respondents and six categories emerged: development, information exchange, organizational support, personal communication, relationships/team building, and accomplishments. Continued research will need to explore the short- and long-term impacts of collaboration in natural resources.     

怀洪新河浮游动物群落特征与水环境因子的关系研究

为研究怀洪新河太湖新银鱼国家级水产种质资源保护区(以下简称保护区)水域浮游动物的群落结构及其与水环境因子的关系,于2014年6月(夏季)在怀洪新河进行采样分析,并对调查区域内的浮游动物及主要环境因子进行了主成分分析(PCA)和典范对应分析(CCA)。结果表明,保护区河段属中营养型河流;保护区浮游动物有4门24属33种,其中轮虫类最多,为11种(占33.33%),其次为原生动物和桡足类,均为8种(占24.24%),最少的为枝角类6种(占18.18%);保护区浮游动物细胞密度平均为1.82×10~4ind./L,生物量平均为2.45mg/L;水温和氨氮是影响水体环境的关键因子;水温、总氮、浊度、氨氮、高锰酸盐指数(COD_(Mn))和pH是影响浮游动物群落结构的主要驱动因子。