Magnetic properties of tree leaves and their significance in atmospheric particle pollution in Linfen City, China   总被引：2，自引：0，他引：2  

YIN Gang  HU Shouyun  CAO Liwan  Wolfgang ROESLER  Erwin APPEL 《中国地理科学(英文版)》2013,23(1):59-72

Fifty-one tree leaves were sampled in the industrial area,residential area,and Fenhe River ecological zone,for the purpose of a magnetic study on atmospheric pollution in Linfen City,Shanxi Province,China.Measurements of mass-specific magnetic susceptibility(χ) show a significant variation range(from 11.6 × 10-8 m3/kg to 129.7 × 10-8 m3/kg).Overall values of magnetic susceptibility decline in the following sequence:industrial area > residential area > Fenhe River ecological zone.The relatively elevated concentration-related magnetic parameters(saturation isothermal remanent magnetization,anhysteretic remanent magnetization and magnetic susceptibility) appear in the industrial area,with their highest values in the vicinity of Linfen Steel Mill.Magnetic particles are dominated by multidomain,magnetite-like minerals.Magnetic particle concentration and grain size both decrease with the increasing distance from industrial area,indicating the industrial area,especially Linfen Steel Mill,is the main source of atmospheric particle pollution.Residential area and Fenhe River ecological zone are also affected by industrial emission to a certain extent.The results of this study indicate that magnetic measurements of tree leaves are practicable for monitoring and determination of atmospheric pollution in Linfen City.  相似文献   

面向地级以上城市空间变化的地理国情监测与应用     

余永欣  杨伯钢  李立军  王星杰  杨旭东  黄迎春 《北京测绘》2020,(4):501-506

文章介绍了面向地级以上城市空间变化监测与应用研究的背景和价值,提出了地级以上城市空间变化监测应用研究的总体思路、研究内容、关键技术与方法等,并以北京市空间变化监测为案例,开展城市空间格局变化、老工业区搬迁改造、海绵型城市建设等三个典型监测应用研究,相关研究成果可为其他地级城市监测提供应用借鉴和示范,从而为解决城市发展面临的现实问题提供数据基底、技术支撑和建议。  相似文献   

积极妥善处理遗留问题促进土地市场健康发展     

赵力强 《浙江地质》2010,(4):40-41

上世纪九十年代初期,大力发展工业,原丽水市前后兴建两个工业区（银苑经济发展小区、灯塔工业小区）．由于种种原因,两个工业区都改变成住宅小区。导致市区土地市场相当混乱,特别是土地改变用途方面问题,各种情况、各种类型很多,非常复杂,社会反响很大。撤地设市以后,针对这类问题,市政府对此高度重视。多次指示要抓紧时间妥善处理市区土地市场遗留问题。  相似文献   

“传统工业区”的教学设计与教学反思     

冯建美 《地理教学》2011,(7):18-19,50

一、教材分析 在分析了工业的区位因素、区位选择和工业地域的形成之后,教材从传统工业区的概念入手,以传统工业区的典型代表“德国鲁尔工业区”为案例,分析传统工业区形成的区位条件、衰落的原因及综合整治的主要措施。使学生通过从“个”推知“类”,通过典型事例理解普遍规律与原理。通过完成“比较德国鲁尔区和辽中南工业区区位形成条件的异同”这个活动,学生实现知识迁移和运用能力,学会辩证地分析问题。  相似文献   

哈达湾老工业区监测浅析     

石海燕  申世国 《测绘与空间地理信息》2021,44(9):137-139

采用国情监测理论与方法,结合统计学原理,利用吉林省吉林市哈达湾老工业区改造前2010年和改造中2017年两期的地上建筑物变化、用地性质变化、绿地变化、空气污染变化等情况的监测结果,开展综合统计分析,客观评价哈达湾老工业区搬迁改造实施的成效.对哈达湾老工业区现状进行全面具体评估,为未来的城市建设与政府决策提供很好的支撑,成为国情监测在实际应用上的典例,为哈达湾老工业区搬迁改造持续进行提供了有力的支持.  相似文献   

石化工业区抗震减灾规划研究     

翟金环  熊峰 《世界地震工程》2007,23(4):129-133

简述了石化工业区震害特点，并简要分析了该工业区可能发生的震害，根据石化工业区抗震规划的特殊性，给出了石化工业区抗震减灾规划的内容和其自身的抗震规划模式，并提出了今后在该工业区进行抗震规划工作需要进一步研究的问题。  相似文献   

鲁尔区产业结构调整对我国的启示     

李晟晖 《地理教学》2003,(6):1-4

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贵州水城工业区覆盖型岩溶塌陷研究   总被引：5，自引：0，他引：5  

雷国良  周济祚 《中国地质灾害与防治学报》1996,7(4):39-46

水城工业区是贵州西部重要的钢铁，建材和煤加工基地，因过量抽取地下水，造成覆盖型岩溶塌陷灾害。本文阐述其地质环境、塌陷特征，分析塌陷形成条件，探讨其形成机理。  相似文献   

SPATIAL STRUCTURE EVOLUTION OF SYSTEM OF RECREATION BUSINESS DISTRICT ——A Case of Suzhou City     

LILi-mei TAOWei 《中国地理科学(英文版)》2003,13(4):370-377

The growing attention on urban tourism was very widespread. There are two angles to study urban tourism: supply-side and demand-side. And the supply-side of the tourism remains very important. The RBD (Recreation Business District) is a useful framework to understand the components of urban tourism and how they fit together. The paper begins with a review on the RBD and the spatial structure of tourism in urban areas and then attempts to develop a more general understanding of the spatial structure evolution of RBDs in a tourist-historic city—Suzhou. The spatial structures and functions of the RBDs in Suzhou are examined, based on field observations, interviews with city officials and industry leaders, and a review of available documents. The urban tourism of Suzhou has developed in a range of contexts, that various types of RBDs have emerged as a result of different urban development strategies. The spatial structure has evolved from the past “Single-cored Structure“ to “Double-cored Structure“ at present, and then to “Chain Structure“ in the future. The spatial form and evolution of RBD in Suzhou are closely relative with its urban spatial expansion. Urban area dispersal is the prerequisite of the emergence of the RBD. Planning and constructing the RBD becomes a new impetus to urban growth or renewal. Finally, a number of strategies for planning and developing the RBD in Suzhou are suggested. The different RBDs should adopt different strategies.Intensification can be the possible strategy for the RBDs in the ancient city. Accreting with the urban theme park or engrafting on the Jinji Lake is suggested respectively for the RBD in the Suzhou New District and the Suzhou Indus-trial Park.  相似文献   

黑龙江省某些城市和工业区地下水资源计算及核实评述     

崔荣久  赵铁军 《黑龙江地质》1997,8(3):38-48

文章基于过去供水勘探计算评价地下水资源成果和多年开采情况调查的基础上，总结并研究了地下水资源补给条件确定及计算方法、参数确定等问题，深入分析并评 地下水资源各种计算评价方法的适合条件笔参数确定出现的原委，进而提出确定边界条件的经验和示原则及勘探试验、监测工程布置的原则，供今后地下水勘探和资源计算评价参考。  相似文献