Development of a Methodology for Selecting Criteria and Indicators of Sustainable Forest Management: A Case Study on Participatory Assessment

This paper describes an application of multiple criteria analysis (MCA) in assessing criteria and indicators adapted for a particular forest management unit. The methods include: ranking, rating, and pairwise comparisons. These methods were used in a participatory decision-making environment where a team representing various stakeholders and professionals used their expert opinions and judgements in assessing different criteria and indicators (C&I) on the one hand, and how suitable and applicable they are to a forest management unit on the other. A forest concession located in Kalimantan, Indonesia, was used as the site for the case study. Results from the study show that the multicriteria methods are effective tools that can be used as structured decision aids to evaluate, prioritize, and select sets of C&I for a particular forest management unit. Ranking and rating approaches can be used as a screening tool to develop an initial list of C&I. Pairwise comparison, on the other hand, can be used as a finer filter to further reduce the list. In addition to using these three MCA methods, the study also examines two commonly used group decision-making techniques, the Delphi method and the nominal group technique. Feedback received from the participants indicates that the methods are transparent, easy to implement, and provide a convenient environment for participatory decision-making.     

Locational Probability for a Dammed, Urbanizing Stream: Salt River, Arizona, USA

/ Data from historical aerial photographs analyzed with a GIS show that river channel change on the Salt River in the Phoenix metropolitan area of central Arizona has been driven by large-scale regional flood events and local human activities. Mapping of functional surfaces such as low-flow channels, high-flow channels, islands, bars attached to channel banks, and engineered surfaces shows that during the period from 1935 to 1997, the relative areal coverage of these surfaces has changed. Flood events have caused general changes in sinuosity of the low-flow channel, but islands have remained remarkably consistent in location and size, while channel-side bars have waxed and waned. The most important determinant of local channel form and process is sand and gravel mining, which in some reaches occupies more than 70% of the active channel area. The general location of mining is closely related to the location of the moving urban fringe, which serves as a market for sand and gravel during construction. Quantitative spatial analysis of imagery supplemented by field mapping shows that for each location within the general channel area, it is possible to specify a probability of encountering a low-flow channel or other fluvial features. Maps showing the distribution of these probabilities of occurrence reveal the most probable location and configuration of the channel as it occurred in the past. Some reaches have the low-flow channel located persistently within a limited area as a result of bedrock or sinuosity controls, but other reaches dominated by flow separation or shallow gradient have almost no persistence in channel location from one flood to another.     

九寨沟景区旅游环境容量研究

本文从不同的视角对九寨沟景区现状条件下的旅游生态环境容量、旅游空间容量、旅游服务设施容量和旅游社会环境容量进行了定量分析，获得了九寨沟景区现状条件下最大旅游环境容量和最佳旅游环境容量值；诊断出九寨沟旅游生态环境容量充分满足游客需求，但服务设施的不足限制了大量游人的进入。     

主成分分析法在三江交汇处水质分析中的应用

本文应用主成分分析法，利用三江交汇处的三个断面从1984年到1998年的监测资料对交汇处的水质做分析，分析前先对量化数据标准化处理，处理后提取主成分，并且计算其贡献率和累计贡献率，再由相应的特征向量得到主成分的线性表达式。结果表明：五项影响因素中，三个断面桔水期均受亚硝酸盐氮的影响比较大，丰水期和平水期均受悬浮物和化学需氧量的影响比较大。交汇前，小南门断面的水质综合污染最严重，凉姜沟断面的水质综合污染最轻；交汇后，三江口断面的水质在两者的缓冲下，水质综合污染居中。则说明主成分分析法为河流的综合治理提供了科学依据。     

博乐市城市环境噪声分析及防治对策探讨

论述了博乐市自1992-2006年城市环境噪声状况,对交通噪声、生活噪声、建筑施工噪声及发展趋势进行了分析,并提出必须从城市总体规划的战略高度统筹实施综合整治,有效地控制噪声污染.     

溆浦县枣业发展的SWOT分析及对策探讨

围绕溆浦县枣业发展的现状,运用SWOT分析方法指出该县枣业发展的优势、劣势、机会和威胁,并针对该县枣业发展的问题提出了对策。     

贵港市土地利用动态变化分析及用地预测

以城市为中心的区域土地是土地资源中资产效益最高的一部分，是人类利用土地影响最为深刻的土地类型。在分析土地利用现状变更调查数据的基础上，应用各类土地利用动态变化模型对贵港市的土地利用动态变化进行分析，并运用灰色系统预测模型对该区域各地类的土地利用时空演变进行了预测，最后提出相应的优化土地利用结构的建议。     

新能源汽车在我国发展的可行性分析

本文从我国石油能源短缺和汽车尾气污染环境加剧的背景出发，详细分析了目前主要的各种新能源汽车的特点及在我国发展的前景，最后得出乙醇汽车应是我国发展新能源汽车的最佳选择的结论。     

流动注射分光光度法测定水中铝的含量

以桑色素作显色剂，采用流动注射分光光度法测定水中铝的含量。在桑色素质量浓度为0．8g／L、聚氧乙烯辛基苯基醚体积分数为1．0％、进样环体积为400μL、检测波长420nm的条件下，采用流动注射分光光度法对水中铝的含量进行测定，本方法的线性范围为2～300μg／L，检出限（信噪比为3）为0．124μg／L，相对标准偏差为2．9％，加标回收率为96．4％～101．8％。     

苯法马来酸酐生产危险分析及安全控制技术

马来酸酐作为一种重要的有机化工原料和精细化工产品,其安全生产具有一定的典型性.对马来酸酐生产过程中的介质危险、过程危险及装置危险进行了分析,提出了马来酸酐装置安全控制技术措施.