遥感技术在土壤污染中的应用研究进展

近年来遥感技术不断地拓展着应用的领域和范围，在土壤污染方面得到了广泛的关注和应用。传统土壤污染的研究存在许多弊端，需要耗费大量时间和精力。遥感技术具有建模范围大、实时性短的特点，它的出现使这些繁琐的过程更加简化。特别是近些年来图像处理手段和无人机遥感技术的发展，极大地提高了该技术的应用精度。本文从遥感技术在土壤污染状况的识别、反演、监管和风险评估等方面的应用出发，列举了遥感技术应用过程中常用的反演手段和方法，梳理了监管数据来源和监管对象。通过目前土壤污染与遥感技术结合的发展现状，较为全面地回顾了国内外遥感技术应用于土壤污染的发展历程，总结了遥感技术应用于土壤污染的各个方面的进展，并对该方面的未来发展趋势进行了展望。     

闹得海水库营养状态分析及富营养化防治

结合9年来对闹得海水库水质监测及相关文献资料，评价闹得海水库营养状态，分析主要污染物变化趋势，对该水库营养状态进行分析，提出该水库富营养化防治对策。结果表明：闹得海水库9年来营养状态在中营养-中富营养之间，主要营养盐总氮、总磷及高锰酸盐指数9年间无显著变化，农业面源是该水库主要营养盐及有机物主要来源。     

在役GIS内置特高频传感器校验方法研究

运行中的GIS内置传感器因其不易拆装,很难对其可靠性及有效性进行校验。根据GIS的结构特点以及特高频信号在GIS内的传输特点,提出一种对内置式特高频传感器的有效性进行校验的方法。通过在相邻传感器注入特高频信号并对信号幅值进行检测,通过检测及计算结果来判断特高频传感器的有效性,经现场验证,该方法简单有效。     

环境中的外部性及其内部化

在经济活动中，经济人为了使自己的收益达到最大化，他们会尽可能地使外部成本转嫁给社会，减少自己的内部成本，使社会资源的配置偏离社会的需要，所以，为了使资源的配置达到帕累托最优，就必须使外部成本内部化。内部化外部成本的经济手段有：向经济人征税、界定资源的产权和实行排污权交易制度等措施。     

矿井水中微量有机污染物的深度处理

本文对华北地区某矿务局进行矿井水中微量有机污染物现状调查的基础上，结合目前国内外城市生活饮用水中微量有机污染物处理研究的资料，初步分析和介绍了矿井水中微量有机污染物的来 要污染物的种类及目前国内研究已较的处理方法，为矿井水的深度处理衣资源化提出一个新的研究方向。     

运用电法勘探方法研究梁宝寺矿的浅层结构

梁宝寺煤矿是一个新建大型现代化矿井,实际揭露的地质及水文地质资料较少,在该矿井实施综合电法勘探-矿井高分辨率电测深和矿井音频电透视,解决了矿井地层、地质构造、水文地质等问题,较好地弥补了实际揭露的地质及水文地质资料较少的问题,为该矿安全生产提供了重要技术支持.     

Ranked set sampling: an annotated bibliography

The paper provides an up-to-date annotated bibliography of the literature on ranked set sampling. The bibliography includes all pertinent papers known to the authors, and is intended to cover applications as well as theoretical developments. The annotations are arranged in chronological order and are intended to be sufficiently complete and detailed that a reading from beginning to end would provide a statistically mature reader with a state-of-the-art survey of ranked set sampling, including historical development, current status, and future research directions and applications. A final section of the paper gives a listing of all annotated papers, arranged in alphabetical order by author.This paper was prepared with partial support from the United States Environmental Protection Agency under a Cooperative Agreement Number CR-821531. The contents have not been subject to Agency review and therefore do not necessarily reflect the views or policies of the Agency and no official endorsement should be inferred.     

Is the antipredatory response in behaviour reflected in stress measured in faecal corticosteroids in a small rodent?

Predation risk has been shown to alter various behaviours in prey. Risk alters activity, habitat use and foraging, and weight decrease might be a consequence of that. In mammals, studies on physiological measures affected by risk of predation, other than weight, are rare. We studied in two separate laboratory experiments foraging, hoarding behaviour and expression of stress measured non-invasively from the faeces in the bank vole (Clethrionomys glareolus), a common boreal rodent. Voles were exposed to predation risk using odours of the least weasels (Mustela nivalis nivalis). Distilled water served as control. In the first experiment, we found that foraging effort, measured as sunflower seeds taken from seed trays filled with sand, was significantly lower in trays scented with weasel odour. Both immediate consumption of seeds and hoarding were affected negatively by the weasel odour. Females hoarded significantly more than males in autumn. In the second experiment, the negative effect of weasel odour on foraging was consistent over a 3-day experiment, but the strongest effect was observed in the first night. Foraging increased over the time of the experiment, which might reflect either energetic compensation during a longer period of risk, predicted in the predation risk allocation hypothesis, or habituation to the odour-simulated risk. Despite decreased foraging under predation risk, stress measured as corticosteroid metabolite concentration in vole faeces was not affected by the weasel odour treatment. In conclusion, we were able to verify predation-risk-mediated changes in the foraging effort of bank voles but no physiological stress response was measured non-invasively, probably due to great individual variation in secretion of stress hormones.     

农村环境质量区划的多元分析

本文提出了适合于农村环境质量区划的分区方法，即首先以主成分分析法分析农村环境质量问题，然后以多种聚类分析法取得一个初始分区系统，最后用判别分析法判别该初始分区系统中各区域单元的类型归属是否正确，对一些类型归属不恰当的作适当调整，最终得到农村环境质量分区系统。文章最后讨论了类型划分问题。     

镉与铜的分离与测定研究

设计出离子交换分离法分离与测定Cd2 和Cu2 的实验方案及实验步骤,摸索出分离与测定Cd2 和Cu2 的最佳实验条件.