Analysis of Survival of the Red Fox (Vulpes vulpes L.) at the Phases of Population Growth and Decline

Changes in the survival parameters of the red fox were analyzed at different phases of the population cycle. It was found that the survival rate in all age classes, including newborns, drastically increased at the phase of population growth. The relationship between the general mortality rate and population size was determined. A hypothesis concerning the mechanism of these changes in the general mortality rate is suggested.     

红肉猕猴桃新品种的选育研究

本文介绍了新选育的给网猕猴桃新品种。该品种子房鲜红色，果实横切面呈红，黄绿相间的图案；果实较大，平均单果重９２．５ｇ，最重达１５０ｇ，含糖量高，味甜，可溶性固形含量为１９．６％，总糖１３．４５％，总酸０．４９％，ＶＣ１３５．７７ｍｇ／１００ｇ，糖酸比２７．４５。     

Measuring bed shear stress along vegetated river beds using FST-hemispheres

The measurement of the bed shear stress along vegetated river beds is essential for accurately predicting the water level, velocity and solute and sediment transport fluxes in computational hydroenvironmental models. Details are given herein of an experimental and theoretical study to determine the bed boundary shear stress along vegetated river beds introducing a novel field measuring method, namely the FliessWasserStammtisch (FST)-hemispheres. Although investigations have been conducted previously for sedimentary channels using the FST-hemispheres, this preliminary study is thought to be the first time that such hemispheres have been used to investigate the bed shear stresses in vegetated channels. FST-hemispheres were first developed by Statzner and Müller [1989. Standard hemispheres as indicators of flow characteristics in lotic benthos research. Freshwater Biology 21, 445-459] to act as an integrated indicator of the gross hydrodynamic stresses present near the bed. Test and validation data were found to be at least of the same order of magnitude for the stresses predicted from literature for sedimentary channels, with this study establishing the commencement of a database of calibrated FST-hemisphere laboratory data for vegetated channel beds. In a series of experiments, depths ranging from 0.1 to 0.28m were considered, equating directly to comparable conditions in small rivers or streams. The results of this study provide a basis for enabling the FST-hemispheres to be used to evaluate the boundary shear stress for a wider range of applications in the future, including vegetated river beds.     

用水解酸化池-膜生物反应器处理活性艳红X-3B废水

采用水解酸化池-膜生物反应器处理含活性艳红X-3B的模拟废水，研究了水力停留时间（HRT）对水解酸化池废水处理效果的影响，考察了水解酸化池-膜生物反应器对废水的处理效果及膜生物反应器中污泥沉降性能对膜污染的影响。实验结果表明：水解酸化池HRT为16h时，废水的可生化性最好，挥发性脂肪酸质量浓度与COD比值为0．5；HRT为17h时，废水脱色率达69％，而COD的去除率受HRT影响较小；膜生物反应器主要起去除废水中COD的作用；水解酸化池-膜生物反应器处理后废水的脱色率和COD去除率分别为83％和97％；膜生物反应器中活性污泥沉降性能的变化直接影响膜污染的速率。     

徐州红色旅游资源开发探讨

市场调查与分析显示,红色旅游资源在徐州市旅游资源开发中占据重要地位。徐州红色旅游资源的开发必须坚持高标准与高质量建设、区域合作、政府投资和市场化运作相结合、旅游产品活化四大原则。在徐州红色旅游资源开发战略举措上,建议采取坚持打造精品、加大宣传促销力度和整合徐州文化旅游资源、适时建设“军事文化大观园”三大战略举措。     

CO2 storage capacity estimation: Methodology and gaps

Implementation of CO₂ capture and geological storage (CCGS) technology at the scale needed to achieve a significant and meaningful reduction in CO₂ emissions requires knowledge of the available CO₂ storage capacity. CO₂ storage capacity assessments may be conducted at various scales—in decreasing order of size and increasing order of resolution: country, basin, regional, local and site-specific. Estimation of the CO₂ storage capacity in depleted oil and gas reservoirs is straightforward and is based on recoverable reserves, reservoir properties and in situ CO₂ characteristics. In the case of CO₂-EOR, the CO₂ storage capacity can be roughly evaluated on the basis of worldwide field experience or more accurately through numerical simulations. Determination of the theoretical CO₂ storage capacity in coal beds is based on coal thickness and CO₂ adsorption isotherms, and recovery and completion factors. Evaluation of the CO₂ storage capacity in deep saline aquifers is very complex because four trapping mechanisms that act at different rates are involved and, at times, all mechanisms may be operating simultaneously. The level of detail and resolution required in the data make reliable and accurate estimation of CO₂ storage capacity in deep saline aquifers practical only at the local and site-specific scales. This paper follows a previous one on issues and development of standards for CO₂ storage capacity estimation, and provides a clear set of definitions and methodologies for the assessment of CO₂ storage capacity in geological media. Notwithstanding the defined methodologies suggested for estimating CO₂ storage capacity, major challenges lie ahead because of lack of data, particularly for coal beds and deep saline aquifers, lack of knowledge about the coefficients that reduce storage capacity from theoretical to effective and to practical, and lack of knowledge about the interplay between various trapping mechanisms at work in deep saline aquifers.     

关于水处理工艺中摇蚊幼虫杀灭方法的探讨

摇蚊幼虫是城市给水处理中出现的新问题,对目前现有的研究方法进行了简要的综述.介绍了摇蚊幼虫的生活习性及出现的原因,并在此基础上阐述了现在采用的化学灭杀方法、物理灭杀方法及生物法对净水工艺中摇蚊幼虫的防治,对进一步研究提出建议.     

超声与紫外光协同氧化法处理染料废水的工艺研究

对超声波、紫外光协同氧化方法处理碱性红B染料废水进行了研究，探讨了水样初始浓度、初始pH值对其脱色效率的影响。并在各条件下，对超声波、紫外光单独作用和两者协同作用下的结果进行了对比。结果表明，超声波与紫外光的协同作用效果明显，染料的降解过程符合准一级动力学方程，在温度30℃、初始浓度50m/L、pH＝1．5、饱和气体为氧气、紫外光波长为253．7nm时，酸性工B经协同处理60min，脱色率可达99．1％。     

二十年来渤海生态环境参数的演化和相互关系

通过系统分析近２０ａ来渤海中部海域３ａ（１９８２－１９８３，１９９２－１９９３，１９９８－１９９９年）１０航次的生态环境特征参数的变化，描述了变化趋势，初步讨论了各种特征参数之间的相互关系。研究发现，近２０ａ来，渤海中部营养盐的浓度和结构（Ｎ／Ｐ和Ｓｉ／Ｎ）均发生显著变化，表现为：硝酸盐、亚硝酸盐、总无机氮持续增加，活性磷和硅显著降低，Ｎ／Ｐ值升高，Ｓｉ／Ｎ值下降。Ｎ／Ｐ值３ａ的五月和十月平均值分     

透明度作为赤潮预警监测参数的初步研究

调查实验 数据显示，在一定条件下，透明度和浮游植物密度和种类之间有着一定的关系。浮游植物密度低时透明度高，浮游植物密度高时透明度低。认为可以尝试使用透明度作为赤潮预警监测或短期预报的参数。透明度值1.6m可以作为 赤潮预警的标准值进行试点。