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81.
MARKKU T. KUITUNEN JOHANNA VILJANEN ESKO ROSSI ARTO STENROOS 《Environmental management》2003,31(1):0079-0085
The impact of dense traffic on the breeding success in pied flycatchers (Ficedula hypoleuca) was studied using roadside nest-boxes. Nest site selection and breeding success of flycatchers were observed in relation
to the distance from the road. The number of occupied territories was no higher closer to the road than it was deeper inside
the forest. The distance to the road had no effect on the laying date, clutch size, or brood size. However, nests closer to
the road were more likely to fail at the chick stage. The number of broods that were closer to roads and were lost completely
was significantly higher than those further away. As a consequence, the number of fledglings per breeding attempt decreased
closer to roads. The nestlings typically died as older chicks when the parent birds were providing them with maximum quantities
of food. A possible reason for the declining reproductive success was the traffic-related mortality of parent birds, as weather
conditions were not especially adverse for raising healthy offspring. 相似文献
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区域电网内所有火电厂对区域水环境影响评价指标是进行区域火电厂规划环评的基础.通过对区域电网内火电厂对区域水环境影响的共性研究,提出了区域电网内火电厂取水影响、排水影响和水污染物影响3项评价指标;在此基础上利用和积法计算各指标的权重,依据权重求得区域水环境综合影响评价指标.评价指标在华东电网火电厂区域水环境影响评价中进行了应用,结果表明,华东电网火电厂对区域水环境的影响程度由大到小依次为黄浦江、太湖、巢湖、淮河、长江和钱塘江. 相似文献
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建设项目环境影响评价现状监测存在的问题及对策 总被引:7,自引:4,他引:3
周宁晖 《环境监测管理与技术》2006,18(3):4-6
结合工作实践,归纳了建设项目环境影响评价现状监测中突出的几种非正常现象,剖析了现象背后的问题成因,提出应强化监督管理,理顺工作机制;有效规范行为,保证现状监测的真实性;重视方案编制,严把数据引用关;采取有效措施,科学实施现状监测. 相似文献
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论述了区域环境影响评价的概念和特点,介绍了区域环境承载力的概念和指标体系,引入了区域环境承载力相对剩余率作为区域环境承载力的评价指标,并通过实例计算,给出了区域环境承载力相对剩余率的具体计算方法和在区域环境承载力评价方面的应用。通过单项环境承载力相对剩余率和综合环境承载力相对剩余率的计算,评价了某市的开发强度和剩余环境容量。 相似文献
88.
The limited and sporadic interaction between EIA and planning theory has meant that EIA has largely failed to benefit from planning theory insights and lessons. Obstacles and dilemmas already encountered and addressed in planning theory are still hampering EIA theory building and practice. An overview of the characteristics, strengths, and limitations of five major planning theories—rationalism, pragmatism, socio-ecological idealism (SEI), political-economic mobilization (PEM), and communications and collaboration (CC) is presented in an effort to ameliorate this problem. EIA parallels to each planning theory and lessons for EIA are identified. Also addressed are the application of planning theories to different context types, overlaps, interconnections and middle ground concepts among theories, the integration of values, ethics, and postmodern perspectives and the potential to construct composite theories. 相似文献
89.
In the 1990s, the obligation to assess transboundary environmental impacts has become part of international law. The UN/ECE Convention on environmental impact assessment (EIA) in a transboundary context, which entered into force in 1997, is one of the key documents. In this study, we show that difficulties with the practical implementation of the Convention arise partly from an incomplete sharing of the concept of EIA, and partly from different material interests on the part of the Parties to the Convention. Attempts to improve the practical implementation should recognize both aspects. Several approaches are thus needed for improving the implementation. Some will help in developing a mutual understanding of impact assessments, whereas others may help in overcoming differences in material interests. 相似文献
90.