On the study of ecosystem health:state of the art

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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。     

污染带单宽流量分布参数研究

讨论了单宽流量横向分布参数b_0和b的范围,并按水位级、断面形和低流速状作了研究。这对无实测流场资料的河流进行污染带计算,具有应用前景。     

铁法煤田地面沉降状况及治理对策

煤的开采，地论是露天采还是地下采都必然给环境带来一定的破坏，尤其是采空区的地面沉陷给当地的地形地貌环境造成了长久甚至是永久性的破坏，给人们的生产和生活带来一定的影响，在对矿井开采区进行地面沉降的基础上，提出了几方面的治理对策。     

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     

厂房、办公楼租赁、转让的环境保护问题

随着市场经济的迅速发展，大量厂房办公楼租赁、转让产生新类型的环境问题。由于其具有突发性、隐蔽性、难追究、治理难的特点，因而应将合同(契约)等重要经济环节纳入环境约束，加强管理，切实实施。