北京市地表水环境面临的主要问题及防治对策

针对北京市地表水水质污染现状、污染特点及其变化趋势,深入剖析了目前地表水环境及其治理过程中存在的主要问题,提出进一步改善北京市地表水环境的措施与建议。     

混凝沉淀用于铬鞣废液处理方法的探讨

对制革生产废水中的铬鞣废液的处理方法进行了探讨，通过投加处理效率高且费用低廉的混凝剂提高废水中铬的去除效率，并最终应用于实际工程中，取得了良好的效果。     

牛顿插值法在大气监测中的应用

本文将牛顿插值方法通过程序输入ＣＡＳＩＯｆｘ—４０００Ｐ计算器，应用到实际大气环境监测中，与实际监测结果作了对照，取得好的成果．该方法解决了基层监测站因特殊情况数据缺测的问题。     

林格曼数监测存在的问题及时间——林格曼数计算方法的探讨

分析并讨论了目前国内关于锅炉烟尘林格曼数（黑度级）监测计算几种取值方法存在的问题，对时间－林格曼数这一新的取值方法进行了探讨。     

车载巡测在区域射频电磁环境质量监测与表征中的应用分析

对北京中央电视塔周围25 km²区域电磁环境质量分别进行了射频的网格法手工监测和车载巡测自动监测，通过SPSS软件等对两种监测方法获取的数据进行了统计对比分析，发现两组数据在总体水平及数值分布特征上较为接近，因此车载巡测监测可以替代网格法监测。以车载巡测数据为基础，绘制了实测数据的道路电磁地图，利用插值法绘制了区域电磁地图，对区域电磁环境质量进行了直观表征。从回应公众关注和城市电磁规划出发，建议今后可利用车载巡测监测加强时域和频域的监测。     

水体中重要污染元素化学形态分析研究方法及其进展

概述了元素化学形态分析的意义、概念和范围，元素化学形态分析与模拟计算方法，并分别对某些重要元素的化学形态分析方法的进展作了综述，介绍了１１５篇文献。     

应用模糊综合指数法对伊犁河（伊宁段）水质的综合评价

模糊数学法对伊犁河(伊宁段)水质进行综合评价时,由于分别采用地面水环境质量标准中五类标准值的平均值及其中三个标准值,计算后的结果不一致,而模糊综合指数法避免了这类问题的出现,计算结果比较满意.从而表明,该法是对模糊数学法的进一步改进.     

夜间建筑施工噪声扰民监测方法探讨

以一家夜间施工工地为例 ,通过对现有夜间建筑施工噪声测量方法及国家和深圳经济特区有关噪声污染定义的分析 ,阐述了夜间施工工地噪声扰民监测方法     

饮食业油烟净化设备产品检测方法研究

对饮食业油烟净化设备产品的检测方法进行了探索性研究、提出了检测装置的空白校准及油烟采样器的性能对测定结果的影响,并进行了部分实验。依据实验结果,提出消除干扰的办法,并在实际测试中得到应用。     

Land User Participation in Developing a Computerised Decision Support System for Combating Desertification

Combating desertification in natural rangelands has recently become a priority in large parts of southern Africa. Rangeland managers, farmers, scientists, conservationists and land users have been applying a variety of restoration technologies to address this problem. Bush encroachment, as part of the desertification process, involves the natural replacement of the herbaceous plant cover by undesirable problem woody species. The active and passive restoration technologies that are applied, are mainly based on indigenous knowledge and include the chemical, mechanical or manual reclamation of unproductive rangelands, as well as the combating of woody and alien species encroachment. Indigenous practices and knowledge play a major role in the effectiveness and success rate of these technologies. This project faces the challenge of bringing together both local and scientific knowledge in a single user-friendly, computerised Decision Support System (DSS) which is directly accessible by land users to support them in the process of decision making, concerning the combating of desertification. Case studies from central and northern Namibia were used to combine qualitative and quantitative data to develop this Decision Support System. The DSS currently consists of two databases and an expert system, which evaluates the results of land users’ management practices, and provides easily accessible information and advice for participants in the system, based on the incorporated data. The DSS is also linked to national and international web sites and databases to offer a wider range of information on technologies concerning agricultural and conservation practices.