山仔水库富营养化与水华爆发的水文因素分析

文章通过水质主要指标的时空变化及其与水库流量、水位、水滞留时间等关系,研究水动力条件对山仔水库富营养化的影响。研究表明,由于山仔水库蓄水时清库不彻底,总氮、总磷浓度较高,从1997年开始呈现下降趋势,2001年后又有所回升;水库水滞留时间大于2周的年份,相对年均水位低,水库水华爆发的几率大;水库的进口、支流入口的总磷、COD、藻类数量和叶绿素a相对较高;山仔水库与下游塘坂水库因其水库形态、库容、水力交换能力的差异,藻类数量和叶绿素a含量也存在明显的差异,说明了山仔水库水华的发生与水文因素关系密切。     

环境价值评估方法综述

对目前国内外的环境价值评估方法进行了综述，并提出了一套适合我国国情的价值评估方法，该方法分为１４类２９个指标，作为完善我国环境价值评估体系的一种建议提出。     

On the study of ecosystem health:state of the art

ＩｎｔｒｏｄｕｃｔｉｏｎＤｕｒｉｎｇｌａｓｔｄｅｃａｄｅｓ,ｔｈｅｔｅｒｍ“ｅｃｏｓｙｓｔｅｍｈｅａｌｔｈ”ｉｓｕｓｅｄｗｉｔｈｉｎｃｒｅａｓｉｎｇｆｒｅｑｕｅｎｃｙｉｎｔｈｅｌｉｔｅｒａｔｕｒｅ.Ｔｈｅｇｒｏｗｉｎｇｉｎｔｅｒｅｓｔｓｉｎｔｈｅｓｔｕ...     

Concurrency: a system design approach to environmental management and sustainability

The lessons of history indicate that mismanagement of natural resources and the environment often leads to potentially adverse consequences.The increasing interest in economic development,particularly in the developing countries of the world coupled with increasing population pressures and the globalization of economic activity is placing noticeable stresses on the ultimate sustainability of both human and environmental systems.Sustainable development is not a new concept.It has been an area of concern for different elements of society for some time.Yet efforts to understand the implications of sustainable development have not,until recently,been formalized.We have focused singularly on economic development and environmental quality as if they were mutually exclusive.This paper focuses on the concept of concurrency as both a conceptual framework and practicable method of understanding and implementing the ecology and economy of sustainability.     

Environmental principles applicable to supply chains design and operation

In this paper we deal with the problem of identifying environmental principles for the design and operation of supply chains. The operations that are included in supply chains are briefly described along with the approaches that are applied in order to improve their environmental performance. A background of environmental principles for achieving eco-efficiency and building of environmentally friendly organizational systems is presented and emphasis is put on the application of such principles “from cradle to grave”. Then, environmental principles applicable to particular objects of logistics networks planning are identified and commented upon. In addition, selective case studies from the literature, which show the applicability of the formulated principles and their relevance to practice, are discussed. The paper concludes with some remarks regarding the benefits for companies and societies, in general, that occur as a result of the application of the formulated principles.     

美国的环境立法

通过对美国环境立法发展状况的分析,阐述了美国环境法规的特点,及其在国家加强行政环境管理等方面的作用。立法不完善,是美国环境立法的主要问题。     

世行贷款项目环境管理

介绍了世行贷款项目各阶段环境管理的具体内容和特殊问题，并提出面临难题。     

静态爆破在长阳南山坡岩崩治理中的应用

相对于传统的爆破技术，在施工场地狭小、地形陡峭以及不能影响周边居民正常工作生活秩序等条件下，运用静态爆破技术施工，具有安全、环保、简单等不可比拟的优点。笔者详细介绍了静态爆破技术的基本原理以及在长阳县榔坪中学南山坡岩崩治理中的工程实践．阐述了静态爆破技术在危岩体治理工程中的施工方法、特点，应采取的安全管理预防措施及应用推广前景。     

环境保护规划在建设项目环境管理中的作用

主要介绍了环境保护规划在建设项目环境管理中的作用。分析了制定环境保护规划的必要性 ,提出了落实规划的相应对策     

海岸带综合管理的区域性特征及其发展机制

在综述国内外海岸带综合管理（ＩＣＺＭ）进展的基础上，以人地关系地域系统为理论基础，论述了ＩＣＺＭ的区域性特征。从地理学看，海岩带是一个开放的复杂的巨系统，有着明确的边界范围，具有可度量性。从管理学看，其模式的多样性反映了区域自然条件和社会条件的差异性，是人地关系双向运动平衡协调的结果，从社会学看，其战略实施先在地方级别上应用，在获得足够的经验或成熟之后，再推广到地区级、省级和国家级的计划中去的空间