铅锌矿采矿废物污染对土壤原生动物的影响

对甘肃省成县王家山严家沟铅锌矿采矿废物污染土壤及对照土壤中的原生动物进行了研究。结果表明，铅锌矿采矿废物污染对原生动物群落有很大影响，主要体现在物种多样性十分显著地下降，群落组成和结构发生巨大变化，污染土壤和土壤群落的优势类群和优势种不同。根据研究结果，腐生波豆虫（Bodo putrinus)和梅氏扁豆虫（Phacodinium metchnico ffi)可作为铅锌类污染土壤环境的指示种类。     

吸油材料的发展

着重叙述了吸油材料的发展历史，种类，吸油机理，性能指标及应用领域等，并对吸油材料的前景作了展望。     

一种二氧化碳闭路循环分解新方法

本文将热化学闭路循环原理用于二氧化碳分解过程，提出了一种二氧化碳闭路循环分解制取C和O2的五段法，对组成循环的五个反应分别进行了工艺条件试验，并对反应的有关固定产物进行了x－射线分析，通过实验验证了此循环的可行性，提出本方法循环操作的示意图。本方法将为解决由二氧化碳造成的环境污染及变废为宝提供一条崭新的途径。     

污灌系统氮素在土壤中的转化与渗漏污染

通过原状土体模拟试验，以多次污灌废水浓度的Ｃ＋２Ｓ为进水浓度，揭示了污灌废水中氨氮在土壤中的转化规律以及引起地下水污染的原因，提出了污灌的农用与防止地下水污染的具体措施。     

Ecology and physiology of phototrophic bacteria and sulfate-reducing bacteria in marine salterns

Marine salterns are habitats for a large variety of halophilic bacteria. In the anoxic zones, halophilic sulfur bacteria develop mainly at the sediment surface, but only a few of them have so far been isolated from such environments. Among the phototrophic sulfur bacteria that sometimes form purple layers underneath the green cyanobacterial layers, members of the generaEctothiodhodospira, Chromatium (C. salexigens), Thiocapsa (T. halophila) were isolated. They grow by using sulfide as an electron donor. In the marine salterns, sulfide originates from active sulfate reduction. Among the halophilic sulfate-reducing bacteria, onlyDesulfovibrio halophilus andDesulfohalobium retbaense have so far been isolated. The ecology and physiology of both kinds of bacteria are discussed in this paper.     

山西省镁工业污染防治现状与对策研究

介绍了国内外镁工业的发展与污染现状，针对山西省镁工业发展与污染的现状以及污染防治中存在的问题，提出了污染防治的对策措施。     

2002年山东省大气污染造成的经济损失估算

在对2002年山东省大气污染资料调查和统计的基础上，应用环境经济学的原理与方法(人力资本法、市场价值法、机会成本法、资产价值法等)，对大气污染造成的经济损失进行了估算，结果表明2002年山东省大气污染经济损失约为126．379亿，约为当年山东省GDP的1．2％。     

Phytotoxins and their involvement in plant diseases. Introduction

Bacterial and fungal plant pathogens are known to produce diffusible toxins in infected plants. These phytotoxins are harmful to plants in very low concentrations, and many reproduce at least some of the symptoms of the relevant bacterial or fungal disease. Several phytotoxins have been shown to be involved in pathogenesis. Recent years have seen substantial progress in our knowledge about the nature, structure and mode of action of phytotoxins, and this is briefly reviewed. Finally, possible applications in fields other than plant pathology are mentioned.The Editors wish to thank Prof. A. Ballio and Prof. A. Graniti for coordinating this multi-author review.     

膳食纤维与肠道细菌对人体的影响

人体肠道有益菌群和有害菌群的共生与捕食关系影响着人体健康 .有害菌群产生大量毒素 ,当有害菌在肠道生态系统中占有绝对优势时 ,会使体内器官产生重大疾病 .食物纤维可以促进有益菌的增殖 ,并抑制有害菌的产生 .通过对影响人体新陈代谢的内因子肠道菌群及外因子食物纤维的研究 ,讨论并分析了食物纤维的摄入量与肠道菌群的种类和数量的相互制约关系 ,阐述了二者在人体新陈代谢过程中对人体健康的重要影响