Temporal dynamics and drivers of lake ecosystem metabolism using high resolution observations in a shallow,tropical, eutrophic lake (Laguna Lake,Philippines)

The physical, chemical, and biological dynamics under changing atmospheric conditions of Laguna Lake, Philippines were analyzed from intensive observations. Diel measurements were conducted for 48 continuous hours for both dry and wet tropical seasons in addition to fine resolution long-term monitoring. Results revealed significant vertical and diel variations of lake variables in spite of a shallow water depth (2.5 m) caused by the intense surface heating from solar irradiance (~800 W m^?2) and accentuated by the lake's high turbidity (16–32 ftu). Late afternoon land-lake breeze (~5–7 m s^?1) regularly breaks daytime thermal stratification, and convective cooling at night maintains isothermal condition until dawn of the next day. The stratified condition demonstrated a wind-driven, density-induced 2-layer current pattern with a windward moving epilimnion (~4 folds faster) and a compensating hypolimnetic flow in the general lake circulation direction. Laguna Lake was observed to have a dominating diel cycle but also undergoes significant seasonal limnological variations brought primarily by climate, hydrology, and its interaction with the adjacent sea. Significantly correlated variations of pH, chlorophyll-a and DO in the dry season were indicative of the higher biological activity associated with the intrusion of polluted waters from Metro Manila. The non-occurrence of thermal over-turn was observed to be regularly followed by bottom hypoxic conditions (2–4 mg L^?1), indicative of the eutrophic condition of the lake and the importance of diel wind-induced mixing in the bottom supply of DO. Laguna Lake was found to be predominantly net heterotrophic (GPP:R < 1, NEP < 0).     

大坝安全监测智能感知与智慧管理技术研究及应用

水库大坝安全监测是工程安全的重要保障措施,亟需结合新一代信息技术,提升大坝安全监测能力。系统总结了长江科学院近年来在大坝安全监测智能感知与智慧管理技术方面的研究及应用工作,通过研发系列化智能传感器、智能采集单元和物联网感知平台,建设统一的大坝安全监测数据资源池,开发通用化安全监测云服务系统,搭建专业数据挖掘平台和综合可视化应用,实现了大坝安全监测数据感知、传输、管理、分析及展示全链路应用,形成了大坝安全监测全生命周期智慧解决方案。研究成果已在乌东德、溪洛渡、向家坝、大藤峡等100余项水利水电工程中成功应用,为保障工程建设及运行安全发挥了重要的支撑作用,具有很好的推广应用前景。     

南京市重大危险源监管体系中的物流对策分析

根据南京市重大危险源普查报告,分析了南京市重大危险源的基本状况和监管中存在的问题,以提高应急物流反应能力为目标,分别从监管模式的改进、监管政策保障措施建设和重大危险源监管体系建设等三个方面提出了提高南京市重大危险源监管水平的对策措施。     

以生产者为主的责任延伸制度新探——有感于《中华人民共和国循环经济法草案征求意见稿》

以《循环经济法草案征求意见稿》第17条规定的以生产者为主的责任延伸制度为基点,分析了以生产者为主的责任延伸制度的内涵、弊端及其实施的保障机制,指出以生产者为主的生产责任延伸制度的主体应包含政府,责任形式应增加行政责任和刑事责任,并对保障机制加以分类,具体阐述了生命周期评价制度、认证单制度、产品回收制度、监督制度、抵押制度等。     

天津商业大学本科教学质量监控体系的构建与实践

本文对天津商业大学本科教学质量监控体系的构建和实践进行了阐述。构建一个系统化、科学化的教学质量监控体系必须坚持人和管理的指导思想,充分考虑构建教学质量体系的目标性、全员性、系统性和全程性原则。依据构建教学质量监控体系和原则,学校构建了由教学管理指挥系统、教学评估系统和教学监督系统组成的教学质量监控体系,经过多年的实践取得了良好的效果。     

监督和激励合约在环境治理中的应用

最近,世界银行设立了原位碳基金(prototypecarbonfund(PCF)),通过创立碳排放交易市场的方式,让全世界都参与到环境改善的事业中,但在交易过程中委托代理问题的有效解决是环境目标实现的关键因素。多方面的合作和有效的监督与激励决定了环保项目的成败。     

大型变压器在线监测技术及其发展

该文综述了国内外大型变压器在线监测及故障诊断技术的现状,针对电力变压器结构的复杂性及分布广、少人或无人值班等工作特点,提出了红外温度监测技术及GPRS技术在大型变压器远程在线监测及故障诊断中的应用前景。     

对金融监管成本的深入分析

金融监管无疑是存在成本的，这主要包括金融监管的执法成本、守法成本等直接成本和道德风险、逆向选择、社会经济福利损失等间接成本，但通过对金融实行监管，可以提高金融市场产品的质量，金融监管不是损害而是增加社会福利，因此，金融监管存在成本也是值得的。相反，如不对金融业实施监管，则会存在更大的成本。我国的金融监管由于种种原因，成本较高，应该通过改善监管策略，降低成本，使我国金融监管实现成本最少化。     

环境监测影响因素及改进措施

随着我国经济的发展,存在的环境问题也逐渐地显露出来,而且环境也对人的身体健康有着直接的影响。因此,我国为加强对环境的保护,制定了很多相应的政策和措施,在国家的管控下,我国环境的恶化程度降低。但是,环境问题仍然不容乐观,环境监测工作是对环境质量监测的关键手段。论文以环境监测的影响因素为主要内容,认识到只有提升环境监测的水平,才能确保环境监测质量得到进一步的提升。     

Using technology to improve the management of development impacts on biodiversity

The mitigation hierarchy (MH) is a prominent tool to help businesses achieve no net loss or net gain outcomes for biodiversity. Technological innovations offer benefits for business biodiversity management, yet the range and continued evolution of technologies creates a complex landscape that can be difficult to navigate. Using literature review, online surveys, and semi-structured interviews, we assess technologies that can improve application of the MH. We identify six categories (mobile survey, fixed survey, remote sensing, blockchain, data analysis, and enabling technologies) with high feasibility and/or relevance to (i) aid direct implementation of mitigation measures and (ii) enhance biodiversity surveys and monitoring, which feed into the design of interventions including avoidance and minimization measures. At the interface between development and biodiversity impacts, opportunities lie in businesses investing in technologies, capitalizing on synergies between technology groups, collaborating with conservation organizations to enhance institutional capacity, and developing practical solutions suited for widespread use.