沈阳市污水资源化的技术路线和政策导向

介绍了沈阳市水资源现状 ,提出了解决水资源不足的污水资源化的技术路线和有关政策导向 ,为沈阳市和其他同类城市在解决污水资源化问题提供借鉴     

Multicystic dysplastic kidney: Natural history of prenatally detected cases

To delineate the natural history of fetal multicystic dysplastic kidneys (MDKs), all cases that were prenatally detected in the Prenatal Diagnosis Center of the University of Virginia from September 1985 to 31 August 1988 were reviewed. All patients were followed through the Center with serial ultrasound evaluations at approximately 4-week intervals, and each liveborn infant was evaluated and followed by one of the authors (S.S.H.) Of the 14 cases detected, ten were detected in the second trimester, the earliest at 16·5 weeks' gestation. Of the nine fetuses with non-lethal disease, there were two cases in which the lesion remained unchanged during observation. Both had an initial diagnosis in the third trimester. In those cases diagnosed in the second trimester (7), all showed an initial increase in the size and number of cysts, followed by involutional changes either in utero (2) or in the neonatal period (3). Two infants had immediate surgical removal of the MDK, one because of respiratory compromise, and the other because of an uncertain diagnosis on renal scan. Abnormalities of the contralateral kidney were found in 7 of 14 fetuses. Five were lethal conditions. Associated non-renal abnormalities were common in bilateral MDK (80 per cent), but rare in unilateral MDK (11 per cent).     

生态补偿机制的建立及补偿资金的筹集

中国经济的持续发展，资源和环境方面的矛盾日益显现，生态补偿机制可以解决自然资源受益人和受害者之间出现的“不公平”。生态作为补偿机制的首要问题是补偿金的筹集问题。     

土地利用与流域水环境管理研究

从土地利用活动与环境的关系着手，分析得出物质流动是联系两者纽带的结论；提出了污染物及沉积物输移的计算模型；最后，探讨了通过土地利用来改善水环境的措施和方法。     

基于WebGIS的吉林省自然保护区地理信息系统设计与实现

"吉林省自然保护区地理信息系统"是采用WebGIS技术体系建立的信息发布平台,通过这个平台实现了吉林省自然保护区信息在机关内部局域网上的共享和动态的、可视化的查询与发布.通过介绍该系统当中WebCIS平台的结构和功能,探讨了WebGIS在环境信息当中的应用模式.     

从美国加州环保署环境信息系统建设情况思考中国城市环境信息系统的建设

阐述了实地考察美国人口最多的加利福尼亚洲的三个政府环保管理部门———加州环保署、南加州水质控制局、南加州空气质量控制局的环境信息化建设的情况 ,总结了加州环境信息系统建设的特点。在此基础之上 ,结合中国城市一级环保局的实际情况 ,对中国城市环境信息系统的建设提出了几点建议以供读者思考。     

江苏省水污染物排放及治理水平分析

在对大量环境统计数据汇总分析的基础上，系统阐述江苏省社会经济发展和水污染物排放情况，并就目前江苏省水污染物治理水平与国内其他地区进行了对比分析。     

Ecologically based policy evaluation: application to ungulate management in New Zealand

Introduced ungulates, e.g., deer and Himalayan tahr, are variously considered as both pests and resources in New Zealand. Much ecological research has occurred into these species and into the ecosystems in which they live. Concurrently, much has been done to develop ‘management’ plans for these species. We reviewed ecological research relevant to these ungulates and developed ecologically relevant criteria to assess the extent to which these have been considered in these plans. Nine criteria were developed within four thematic areas: ecological principles, objectives and outcomes, adaptive management, and use of science information. Four planning documents were then evaluated. All four poorly or at best marginally considered fundamental ecological principles: only the Himalayan thar control plan scored well in terms of having objectives and outcomes that were clearly ecologically based; the thar plan was very strong in terms of its commitment to implementing adaptive management; and, in terms of using the best available science both the thar plan and the deer issues and options paper scored well. Overall, ecological science and principles have not played major roles in the development of some of these plans, probably because ultimately they reflect political choices that are difficult to support with the available ecological research.     

城市垃圾排放场污染状况及管理对策研究

城市生活垃圾是世界各国城市面临的严峻问题 ,处理不当将严重影响城市的建设和发展 ,对空气质量和地下水源造成严重污染。本文通过对沈阳市城市垃圾排放情况的调查和分析 ,提出了防治生活垃圾污染的管理对策     

关于沈阳经济技术开发区环保工业园的发展构想

对沈阳经济技术开发区目前的环境管理及区域环境状况进行分析 ,并提出如何通过建设开发区环保工业园提高管理水平、引导环保产业发展及更有效地为企业服务。