应用BP神经网络预测城市需水量的探析

在对辽宁省营口市城市需水量预测中，采用BP人工神经网络方法对该市人均综合用水量进行预测。进而预测出城市需水量，取得了满意效果。从精度检验、数据类比和趋势分析等角度，论证了此种预测方法的可行性和有效性。     

现行城市机动车排放控制法律调整存在的不足与对策

针对目前中国城市机动车高速发展而带来了城市大气环境污染负面问题，分析了现阶段对城市机动车排放控制存在的法律责任界定不清、执法部门权责不明、市场机制运作不完善等缺陷，提出从法律视野进行调整，充分发挥法律的规制功能和权威力量，明确行政主管部门权责，健全机动车从生产-销售-回收以及与石油等部门的市场调节机制，最终促进城市机动车尾气排放得到有效的控制，营造良好的城市环境。     

城市生态学评价——方法和实例研究

通过对城市生态系统的分析,提出了城市生态学评价的内容、目标和程序。以新建城市博达为例,具体说明了该评价程序的使用方法。     

城市生态功能区规划研究

近年来，随着我国经济建设的进程不断加快，城市生态破坏问题逐渐显现，人们赖以生存的自然生态环境遭到了非常严重的破坏。保护好生态环境，是保证经济稳定、健康和可持续发展的重要前提。由于城市人口密集，生态系统脆弱，受到破坏后很难恢复，而且城市系统的生态恢复工作只能建立在现有的城市规模和城市特征的基础之上，很难有较大的改变。因此，研究和探讨城市生态功能区的规划，对于城市环境和经济建设环境的改善都具有很重要的意义。     

A2/O法处理城市污水工程实例

介绍了黄冈市遗爱湖污水处理厂的工艺流程,各构筑物和主要设备的参数.该工艺采用A2/O生物处理池、二沉池及消毒池合建,具有占地小,能耗省的特点,且出水水质达到<城镇污水处理厂污染物排放标准>(GB18918-2002)中的一级标准的B标准.     

不同放牧强度对红三叶、黑麦草草地植被和土壤养分的影响

对不同放牧强度下草地植物和土壤的变化规律进行了研究，结果表明：３年强度放牧使土壤的全氮含量和草地的组成和结构发生了较大的变化，使牧草产量下降１７．１％，草地主要种红三叶的重要值降低了３３．８％，均质度系数增加５１．１％，土壤的氮磷比升高１．３。轻度放牧使草地全氮含量降低０．０９６％，红三叶的均质度系数增加２１．０％。中度放牧并未使草地牧草产量和红三叶的重要值降低，同时使草地红三叶均质度系数保持在远低于１．０水平以下，但使土壤全氮含量下降０．０８５％。根据以上结果，中度放牧是保持草地持续高产的最好的放牧管理选择。     

Ecological compensation mechanism for urban green land and its application in Shanghai,China

Urban green land compensation plays an important role in county development, ecological environment management and many other fields. The concept, methods and principles of urban green land are introduced in this paper. According to the pay fee method, the value and ecological function of various types of urban green land were analyzed. The cost-benefit analysis method (CBAM) was used to estimate different external diseconomy benefits caused by green land loss. The authors applied CBAM to estimate such benefits in the case of Shanghai, China, and calculated the actual compensation value for green land. Results indicated that in 2002, the compensation value for the green land of Shanghai was RMB 8.58 × 10⁵ Yuan/hm². Translated from Urban Environment & Urban Ecology, 2006, 19(3): 4–6, 11 [译自: 城市环境与城市生态]     

城市噪声管理信息系统中道路交通噪声预测评价的实现

介绍了城市噪声管理信息系统的目标、结构及其功能，详细阐述了采用城市交通干线噪声平均值公式、FHWA模型与GIS集成的方法进行城市道路交通噪声预测评价。该方法可实现城市交通干线噪声平均值及任一噪声预测点噪声值的计算，并能以等声级形式表示道路噪声分布情况。其作为城市噪声管理信息系统的一项重要应用功能，为道路交通噪声预测评价提供了方便有效的工具。对城市噪声管理信息系统的进一步完善作了探讨。     

城市建筑立体绿化建设初探

由于城市人稠地少环境污染严重，城市中的人们渴望回到大自然的怀抱，本文通过阐述城市立体绿化的必要性、绿化的方法等来说明城市建筑立体绿化已成为人们走向森林走向绿色的重要途径之一。     

Urban garbage disposal and management in China

This paper, probing into the present situation of urban domestic garbage by analyzing its growing trend, compositional change and regional difference, reveals the problems existing in its disposul and management in China. Meanwhile, a questionnaire was conducted in five big cities around China for surveying urban residents‘ attitudes towards garbage disposal and management policies and measures. Results showed the outlmt of urban domestic garbage in Chinese cities is ever increasing, and the recoverable materials and energy in garbage composition are also increasing. The population growth, economic development, and increase of residents‘ expenditure level are the main factors influencing the growing output and changing composition of the garbage. Information acquired from the questionnaire showed that majority of the urban residentsare in favor d the garbage reduction policies and managerial measures and are willing to collaborate with municipal government in battling against gadbage. Based on the analysis and questionnaire, some policymaking-oriented suggestions such as operating the garbage disposal from a social welfare service to a sector of profit-gaining enterprises, transferring the garbage management from passive end control to active source control,promoting the classified garbage collection in cities around China, and charging garbage fees for its cleanup and disposal, have also been put forward in the paper.