Research on the Sustainable Utilization of Water Resources of Jinan City

Abstract

The study on the sustainable utilization of water resources of Jinan city is a research hotspot in the urban sustainable development field. How to use a scientific and rational evaluation index system to analyze the sustainable utilization of water resources of Jinan city and then guide the development and utilization of water resources becomes particularly important. Based on the theory of sustainable development this study introduces the method, basic steps and evaluation indexes of the assessment of the development and utilization of water resources. By systemic analyzing the exploitation and utilization standards of water resources and economy and society in Jinan city, the evaluation and index system of sustainable utilization of water resources in Jinan city can be constructed and index weight can be confirmed, and then, the standard of sustainable utilization of water resources in different years can be analyzed comparably. Thus, the deficiency of lack of reflection of coordination extent in water resources development standard, society and economy in traditional evaluation method is settled efficiently. The paper takes the sustainable utilization of water resources of Qingdao City in 2008 as the standard to compare and assess the water resources utilization in Jinan City. The paper also collects data of water resources in Jinan City from 2001 to 2007. The result indicates that evaluation method is of feasibility and it is effective to the implementation of sustainable utilization strategy water resources in Jinan City.     

Stable isotope analysis in food web research: Systematic review and a vision for the future for the Baltic Sea macro-region

Food web research provides essential insights into ecosystem functioning, but practical applications in ecosystem-based management are hampered by a current lack of knowledge synthesis. To address this gap, we provide the first systematic review of ecological studies applying stable isotope analysis, a pivotal method in food web research, in the heavily anthropogenically impacted Baltic Sea macro-region. We identified a thriving research field, with 164 publications advancing a broad range of fundamental and applied research topics, but also found structural shortcomings limiting ecosystem-level understanding. We argue that enhanced collaboration and integration, including the systematic submission of Baltic Sea primary datasets to stable isotope databases, would help to overcome many of the current shortcomings, unify the scattered knowledge base, and promote future food web research and science-based resource management. The effort undertaken here demonstrates the value of macro-regional synthesis, in enhancing access to existing data and supporting strategic planning of research agendas.Supplementary InformationThe online version contains supplementary material available at 10.1007/s13280-022-01785-1.     

基于GLM模糊评价在煤矿安全中的应用

煤矿安全评价是现代绿色矿山建设的主要指标之一。为对煤矿安全进行有效的评价,综合分析影响煤矿安全的人员因素、地质因素、技术设备因素、环境因素等各项指标。应用广义线性理论和SAS统计分析方法,建立基于GLM模糊评价模型。通过计算各项指标对应等级的煤矿安全影响权重〖AKω- ij,结合模糊综合评价方法得出煤矿的安全生产状况,同时通过优势比分析各指标的敏感性因子,得出防范指标危险性的有效措施。研究表明:该模型依据标准整理数据,操作性强,较准确地得出煤矿安全的状况,为煤矿的安全评价和管理决策提供依据。     

MAMA双功能螯合剂前体的合成及结构表征

双功能螯合剂在放射性药物的研究、合成、应用,特别是在生物分子的放射性标记方面发挥着极为重要的作用.本文采用简易方法合成了MAMA双功能螯合剂前体,N-(2"-对甲氧苄巯乙基)-2-[(2'-对甲氧苄巯乙基)氨基]乙酰胺,并通过Uv-vis、IR、1HNMR、MS以及元素分析等对其结构组成进行了确证;同时,利用Gaussian 03W程序对其进行了结构优化描述,并计算了相应的分子能量.此外,对制备得到的前体进行了稳定化处理,将其转化为盐酸盐形式,并用IR、1HNMR等进行了检验,确定了此处理是合理可行的.     

离子型水面溢油凝油剂的制备与性能研究

以壳聚糖、十四酰氯、氯乙酸为主要原料,合成了一种离子型壳聚糖水面溢油凝油剂,并用IR对其结构进行了表征。实验结果表明:当壳聚糖:十四碳脂肪酸酰氯:氯乙酸的摩尔比为11∶.51∶.5时,得到的凝油剂具有较好的凝油性能和较强的适应性,用于水面柴油、机油、苯、二甲苯的回收处理,不但回收处理效果好,而且基本不受水盐度的影响。     

区域可持续发展战略规划的理论与方法研究

实施区域可持续发展战略规划是落实科学发展观的需要。结合广东省江门市可持续战略规划的实践,对可持续发展规划的概念、内涵、基本框架以及技术流程进行探讨。基本结论是：区域可持续发展战略规划应以“环境社会系统”全新的视角,回答一个区域该如何化解“三大供需矛盾”,消除“三大危机”,提高区域可持续发展能力的问题;对区域环境社会系统这类开放型复杂巨系统进行可持续发展战略决策,需采用专家经验与计算机建模相结合、反复试错、多元互动的综合集成方法。     

三种常用氨基甲酸酯类农药人工抗原合成方法的设计与优选

农药人工抗原的合成直接影响制备抗体的质量,是建立农药分子特异性强、灵敏度高的免疫分析方法的关键。本文综述了国内外对于氨基甲酸酯类广泛使用的3种农药甲萘威、克百威、涕灭威人工抗原合成过程中的农药分子半抗原的设计原则、合成方法,人工抗原的设计、优选及影响因素等方面的研究进展。     

不溶性淀粉黄原酸酯处理含镉废水的研究

本文以环氧氯丙烷与淀粉进行交联反应,然后再进行黄原酸化反应制得不溶性淀粉黄原酸酯（ISX）,用ISX对含镉废水进行了处理试验,对其去除效果及影响因素进行了实验研究,并对其去除机理进行了初步探讨。试验结果表明,当其用量为651mg／L时,Cd^2＋离子去除率达99．30％。与其它方法相比,该法具有成本低、操作简单、无毒无害、易于分离、去除率高,回收废渣处理不会引起二次污染等优点。     

水镁石-水体系氢同位素分馏系数的低温实验研究

分别以氯化镁和氮化镁作为起始物料，在低温（25～90℃）溶液中采用化学方法合成水镁石．然后分别测定水镁石和水的氢同位素组成，得到水镁石-水体系的氢同位素分馏方程为：103lna=－4．88×106／T2－22．54。由于矿物-水体系氢同位素分馏的压力效应，本研究通过大气压力下的实验得到的分馏系数值，系统地低于根据高温（510～100℃）高压（100～103MPa）热液交换实验结果向低温方向外推获得的分馏系数值。与已知的其它含羟基矿物-水体系低温氢同位素分馏曲线比较的结果表明，在热力学平衡条件下，水镁石相对于高岭石和伊利石／蒙脱石亏损D，但相对于外铁矿富集D。因此，合羟基矿物存在如下D富集顺序：Al－OH＞Mg－OH＞Fe－OH。