关于"生态监测"之思考

对生态监测的目的、含义、监测内容及与环境监测的关系进行了探讨。     

Aliphatic and polycyclic aromatic hydrocarbons in sediments of Kaohsiung Harbour and adjacent coast, Taiwan

Surficial sediment samples collected from Kaohsiung Harbour and its nearby coast were analyzed for aliphatic hydrocarbons and parent polycyclic aromatic hydrocarbons (PAHs). According to our results, the average total concentrations of n-alkanes (n-C₁₂ to C₃₅) and aromatics (15 PAHs) were 4.33 µg g^–1 dry weight (ranged 0.46–22.60) and 0.59 µg g^–1 dry weight (ranged 0.09–1.75), respectively. The highest concentrations of aliphatic and aromatic hydrocarbons were recorded in stations near the estuaries of Qianzhen River and Love River, respectively. Aliphatic hydrocarbons in the samples indicate that there has been significant non-petrogenic, possibly terrestrial, contribution in the sediment of the open coast of Kaohsiung Harbour and that there has been dominant contribution from petrogenic sources in the sediment of the inner harbour. PAHs, detected in the samples, however, indicated a higher pyrolytic contribution in open-coast samples and a higher petrogenic contribution in the inner harbour. Overall, sediment concentrations of total alkanes in this study were comparable to those found in Victoria Harbour, Hong Kong and are higher than those found in Xiamen Harbour, China. Concentrations of total PAHs in inner Kaohsiung Harbour sediments were relatively lower than those found in Victoria Harbour, Hong Kong and Xiamen Harbour, China, but comparable to those found in Hsin-ta Harbour, Taiwan and Incheon Harbour, Korea. In comparison with several effect-based sediment quality guidelines, most PAH concentrations found in samples taken from inner harbour stations exceeded the Threshold Effect Level of Florida indicating a slight possibility of adverse effects.     

Multimedia model of atrazine in plant-soil-groundwater system with a fugacity approach

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空气中SO2,PM2.5浓度水平与居民每日门诊就诊人次的动态研究

通过对１９９５年重庆渝中区空气中ＳＯ２、ＰＭ２．５浓度水平与居民每日就诊人数的动态观察发现：居民内科各月门认及诊人次按病种分类显示，慢性阻塞性肺部疾病（ＣＯＰＤ）在空气ＳＯ２、ＰＭ２．５空气浓度水平出现峰值的一月份呈现高峰；各年龄组四大类疾病的延迟七日的门诊女性就认人次中，ＣＯＰＤ和循环系统疾病的就诊人次与ＳＯ２、ＰＭ２．５浓度相关系数在０．４－０．７之间，有较为密切的关系。ＣＯＰＤ的时间聚集性分     

车用催化转化器及其对发动机性能影响的研究

本文论述了影响催化转化器性能的主要因素有催化剂，催化剂的中毒失效，催化转化器的结构和排气系统的影响，温度、发动机工作状况等；强调催化转化器的结构与发动机及排气系统匹配的重要性。     

Analysis on sensitivit and landscape ecological spatial structure of site resources

This article establishes a set of indicators and standards for landscape ecological sensitivity analysis of site resources by using the theories and approaches of landscape ecology.It uses landscape diversity index(H),evenness(E),natural degree(N),contrast degree(C) to study spatial structure and landscape heterogeneity of site resources and thus provides a qualitative-quantitative evaluation method for land planning and management of small ,medium scale areas.The analysis of Yantian District,Shenzhen of China showed that Wutong Mountain belonged to high lanscape ecological sensitivity area,Sanzhoutian Reservoir and Shangping Reservoir were medium landscape sensitivity area and high ecological sensitivity area;Dameisha and Xiaomeisha belonged to medium sensitivity area caused by the decline of natural ecological areas.Shatoujiao,Yantian Pier belonged to low sensitivity area but urban landscape ecological development had reshaped and influenced their landscape ecological roles in a great extent.Suggestions on planning,protection goals an development intensity of each site or district were raised.     

Measurement of respiration amount of white birch(Betula platyphylla) population in the mountainousregion of Beijing

Ｍｅａｓｕｒｅｍｅｎｔｏｆｒｅｓｐｉｒａｔｉｏｎａｍｏｕｎｔｏｆｗｈｉｔｅｂｉｒｃｈ（Ｂｅｔｕｌａｐｌａｔｙｐｈｙｌｌａ）ｐｏｐｕｌａｔｉｏｎｉｎｔｈｅｍｏｕｎｔａｉｎｏｕｓｒｅｇｉｏｎｏｆＢｅｉｊｉｎｇＦａｎｇＪｉｎｇｙｕｎ，ＷａｎｇＸｉａｏｋｅ（...     

淮河流域平原区第四系含水层划分及特征分析

以中国地质调查局资助的《淮河流域环境地质调查》项目为依托,对收集到的区域基础地质和水文地质资料进行了二次开发。并根据近三年来淮河流域环境地质调查项目新取得的水文地质钻孔资料、水化学及同位素样品分析结果,科学地对淮河流域平原区第四系含水层进行了划分和印证,结合项目阶段研究成果,对淮河流域平原区第四系含水层特征进行了初步分析和总结。     

功能性介孔分子筛用于环境水体净化的研究

采用中性模板途径合成了介孔分子筛ＨＭＳ，并通过化学修饰手段在其孔内壁上接枝了γ－氯丙基三乙氧基硅烷，得到功能化的介孔分子筛ＣＰＳ－ＨＭＳ。考察了ＣＰＳ－ＨＭＳ对水体中三氯甲烷和苯酚的吸附性能。结果表明，其最大吸附容量分别为１９６ｍｇ／ｇ和１４８ｍｇ／ｇ，去除率高达９７％和９４％；和ＰＨ值对吸附量的影响不很显著；动态穿透曲线表明在ＣＰＳ－ＨＭＳ上的吸附为扩散控制。     

水体中苯及其衍生物降解途径研究进展

介绍了苯及其衍生物对水环境所造成的污染和危害,并对水体中该类污染物降解技术研究进展进行了综述.着重介绍了光化学及光催化技术、生物降解和超声波降解等技术在该领域的有关研究.