论我国农业持续发展的环境及其保护

从现在到２１世纪，农业担负着支撑国民经济快速发展的十分艰巨的历史使命，完成这一使命的唯一途径是确保农业的持续发展。作者在深入分析现阶段我国农业所面临的许多不利环境因素的基础上，提出了培育农业持续发展条件，优化农业持续发展环境的可行对策。     

清洁化生产中资源边际机会成本分析

从可持续发展观点出发，首先提出资源使用者所支付的资源价格应等于边际机会成本，并详细地分析了其原因和组成，然后再一步探讨了清洁化生产中资源边际机会成本与清洁化生产技术水平的关系，在此基础上，分析了清洁化生产中资源边际机会成本最小化的约束条件     

生态全息论对发展循环经济的启示

作者根据生态全息的理论，提出了推行工业生态系统和循环经济的具体步骤。发展循环经济是一个大的系统工程，涉及到经济、环境、社会的各个层面，涉及到国民经济的各个行业和企业，必须进行系统的研究和战略部署，理念不能作为目标，没有政府的支持和企业的积极参与是不行的。     

生态旅游可持续发展的对策分析

阐述了自然保护区内发展生态旅游存在的问题 ,着重对生态旅游可持续发展的关键问题及对策进行探讨     

嫩江齐齐哈尔江段污染现状与可持续发展对策

本文在介绍嫩江齐齐哈尔江段基本情况及污染源排放状况基础上,分折了嫩江齐齐哈尔江段水环境质量污染的主要问题,提出了嫩江齐齐哈尔江段可持续发展与相关对策。     

The Social Meaning of Carbon Dioxide Emission Trading Institutional Capacity Building for a Green Market in Costa Rica

Forests offer good possibilities for the sequestration of carbon dioxide. This service can be commodified by the introduction of carbon (dioxide) credits, which can be traded on a carbon market. The premise of this paper is that the traditional economic view on the construction of these carbon markets is a too simplistic one, particularly, because it neglects the social meaning of a carbon market for developing countries. From their viewpoint as suppliers of carbon credits such a market has a broader meaning. It must be seen as a social mechanism for improving both the living conditions of local people and a more encompassing improvement of the environment than climate as such. What initially might be labelled as a carbon market might better be understood as a more encompassing 'green market'. The agreement between Costa Rica and Norway, officially known as the Reforestation Conservation Activities Implemented Jointly Project (RFCAIJP) represents a clear example of a green market. In this paper, we study the development, characteristics and benefits of that market, asking the question what lessons can be learned from this first practical experiences. More specifically we focus on the conditions that have made this type of agreement successful.     

环境监测与环境监测技术的发展

环境监测是环境保护的基础,环境监测为环保工作提供了科学依据和技术支持,环境监测技术使人们能够更为及时、有效地监测、判断环境状况,进而探究环境保护的方法和途径,明确环保工作的方向和目标,制定科学、正确的环保制度和政策。在环境问题日益严重的现代社会,环境监测技术已经成为一项不可或缺的现代科学技术。本文首先分析了环境监测的涵义和发展过程,然后分析了环境监测技术的发展概况以及未来发展趋势。     

河南环境问题城乡差异的对比研究

消费、教育、医疗等方面的城乡差异一直是社会各界关注的问题,然而,日益突出的城乡环境差异却没有引起足够的重视。河南作为农业大省,其城乡环境差异的表现更具代表性,本文通过对河南省城乡环境压力指标、环境状态指标以及环境保护工作等方面的差异的具体特征和表现形式进行深入的对比分析,发掘出导致城乡二元环境差别产生的认识上、理论上及组织工作上的深层次的问题及原因,为进一步推动和实现城乡环境一体化以及新农村建设提供理论支持。     

铁岭市环境保护及相关产业调查分析与发展建议

对铁岭市2011年环境保护及相关产业进行调查,根据调查结果分析铁岭市环保产业现状及特点,提出全市环境保护及相关产业发展建议。     

Zebrafish as a possible bioindicator of organic pollutants with effects on reproduction in drinking waters

Organic contaminants can be detected at low concentrations in drinking water, raising concerns for human health, particularly in reproduction. In this respect, we attempted to use the zebrafish as a bioindicator to detect the possible presence of these substances in drinking water, aiming to define the most relevant parameters to detect these substances, which particularly affect the development and reproduction of zebrafish. To this end, batches of 30 embryos with the chorion intact were cultured in drinking waters from different sources, throughout their full life-cycle up to 5 months, in 20 L tanks. Six replicates were performed in all water groups, with a total of 24 aquariums. Two generations (F0 and F1) were studied and the following parameters were tested: in the F0 generation, survival and abnormality rates evaluated at 5 dpf (days post-fertilization) and at 5 mpf (months post-fertilization), the onset of spawning and the fertility rate from 3 mpf to 5 mpf, and the sex ratio and underdeveloped specimens at 5 mpf. Furthermore, in the F0 offspring (F1), survival and abnormality rates were evaluated at 5 dpf and the hatching rate at 72 hpf. These results revealed that the hatching rate is the most sensitive parameter to distinguish different levels of effects between waters during the early life stages, whereas the rate of underdeveloped specimens is more suitable at later life stages. Regarding adult reproduction, fertility rate was the most sensitive parameter. The possible reversibility or accumulative nature of such effects will be studied in future work.