循环经济模式的区域思考

循环经济是21世纪的新经济, 是以资源环境、经济与社会协调发展为目的的新型发展模式,是推进可持续发展的新模式,地理学应加强对循环经济模式的区域研究。循环经济模式的5 种基本类型包括:①环境效益与经济效益同提高的模式;②环境效益提高,经济效益保持不变的模式;③环境效益提高,经济效益下降但大于零的模式;④环境效益提高,经济效益下降且等于零的模式;⑤环境效益提高,经济效益下降且小于零的模式。认清循环经济不同类型模式的特征,有助于我们深刻理解循环经济的"多赢",正确选择合适的循环经济模式。认为循环经济模式存在空间差异规律包括环境质量"U"字型分布规律和环境质量地区差距的倒"U"字型规律,在近期缩小中国三大经济地带之间环境质量的差距是不现实的,应通过因地制宜地推广循环经济模式减缓三大经济地带环境质量差距扩大的趋势。     

河北省平原地区水资源利用的边际效益分析

从经济学的角度给出了利用统计资料计算工农业用水边际效益的方法。并以保定地区为例 ,详细阐述实际运算过程中的数据处理、转换等方法 ,计算出河北省 7个平原地区的工农业用水边际效益值 ,并讨论边际效益在水资源分配中确定合理供水量的作用     

粤港澳大湾区区域合作与产业一体化的演化特征及耦合关系研究

区域一体化下的跨界合作与产业协同有利于推动区域高质量发展与实现共同富裕。论文借助流空间网络、耦合分析、探索性空间分析等方法系统分析2010—2019年粤港澳大湾区区域合作与产业一体化的演化特征及耦合关系,得到的主要结论有：(1)大湾区区域合作突破地理邻近性,网络化趋势明显加强,城市网络联系指数整体上升;(2)大湾区城市产业布局、要素一体化过程中极化效应显著,产业发展内部差异悬殊;(3)大湾区区域合作与产业一体化的耦合协调度整体上升,其空间演化呈集聚趋向,空间布局结构具有局部稳定性,整体分布格局呈“东南独高、中北趋凸、周边低凹”的特征;(4)大湾区西部及东南沿海城市耦合协调度空间增长过程具有显著的负向整合性,大湾区耦合协调度空间演化具有空间依赖性。研究表明大湾区区域合作与产业一体化具有显著的时空关联性,大湾区应持续推进多层次、全方位的区域合作,促进产业一体化与区域合作的高度耦合。     

全球产业转移与GVC区域竞争——基于中国与中南半岛四国的分析

以中国和中南半岛四国为对象,以定量评价全球产业转移背景下的区域全球价值链(GVC)竞争态势为目标,采用多因子综合评价、IRIO投入-产出分析和RCA、GVC指数分析等方法,刻画了21世纪以来全球43个主要经济体、八大类型产业的全球产业转移时空演化特征,同时测算了中国和中南半岛四国的全球产业转移吸引力以及制造业全球竞争力的时空演化格局,并从全球价值链视角分析了中国和中南半岛不同国家、不同产业部门全球价值链GVC参与度指数和GVC地位的区域竞争动态演变趋势。研究发现:①2000—2014年,中国成为承接全球产业转移规模最大的国家,不同经济体所拥有的资源禀赋和比较优势是吸引全球产业转入最主要的因素。②2000—2018年间,中国的全球产业转移吸引力水平长期维持在高位水平,整体上优于中南半岛四国。③2005—2015年,中国的中高级制造业和高技术制造业在全球制造业层面的竞争优势日益强化,柬埔寨、越南则分别在初级制造业和中低级制造业部门提升了其国际竞争力。④中国的整体GVC参与度水平在2005—2015年期间低于越南,但其GVC地位指数却远远领先于中南半岛。     

产业集聚对黄河流域工业韧性的影响研究

经济韧性是经济地理学领域的研究热点,区域产业结构被认为是影响经济韧性的最重要因素.2019年以来,黄河流域生态保护和高质量发展已上升为国家战略,对黄河流域工业韧性进行系统评价并考察产业集聚对工业韧性的影响具有重要的理论和现实意义.以黄河流域为研究区域,从抵抗力和恢复力2个层面刻画区域工业韧性,构建计量模型考察专业化、多...     

THE INTERNATIONAL MOBILITY OF LABOR: NORTH AFRICAN MIGRANT WORKERS IN FRANCE*

Since World War II, migrant labor has contributed significantly to Western Europe's economic growth. Initially, industries recruited and hired migrant workers to overcome labor shortages and downward demographic trends within the domestic work force. Since the recession of the mid-1970s, however, migrant labor has faced increasing job loss and restricted entry to many Western European countries. Throughout the postwar period, state immigration policy has supported industry, initially by assisting in the recruitment, and more recently, facilitating the repatriation of migrant workers. Economic and social disparities between developed core and underdeveloped peripheral countries are linked to international labor mobility. Certain sectors in the core benefit from the reserve labor force while emigration from peripheral countries partially contributes to these countries' economic problems. These issues are explored through a case study of the employment of North Africans in the French automobile industry.     

A computerized geologic mapping system based on logical models of geologic structures

In this article we describe the basic framework of the computerized geologic mapping system cigma. The system, whic is based on a mathematical formulation of geologic concepts, consists of the following six subsystems: (1) input of geologic data set; (2) inference of stratigraphic sequence; (3) construction of logical models of geologic structures; (4) determination of three-dimensional geologic boundary surfaces; (5) construction of three-dimensional solid model of geologic structures; and (6) graphical presentation. Geologic structures are summarized in several tables called logical models of geologic structures. Each model is constructed automatically from input data on structural relations between geologic bodies. The model interprets the data automatically to create data files necessary to determine the shapes of geologic boundaries; it also provides a threedimensional solid model of geologic structures referring to the shapes of boundaries. As a prototype, we introduce two types of contacts corresponding to conformity and unconformity into the logical model and show that it is possible to draw a geologic map automatically. More complex geologic structures can be introduced into the geologic mapping system through further formulation of geologic structures.     

滇05井水位动态的震前短临异常

本文根据滇０５井的观测情况,研究该井水位变化速率。经多元回归分析,发现该井水位变化受固体潮汐的影响是主要的。继而采用彼氏滤波方法,排除固体潮汐的影响,结果发现：滇０５井在中强地震发生前,水位动态反映出明显的短临异常。     

Northern Greece's industrial minerals: production and environmental technology developments

This paper reviews the use of Greek industrial minerals into developing low-cost, high-tech solutions to remediate parts of the chemical pollution environmental problem. The remediation strategy, based on the application and implementation of the Greek industrial minerals potential, became a major line of investigation in projects to develop new environmental technologies. Although past and current experiments have been successful on a lab scale in a number of applications, the results have not always been implemented on industrial scales. Greek olivine has been successfully tested as neutralizing agent for acid wastes, co-producing exploitable amounts of silica gel, magnesium sulphate and magnetite. Vermiculite is currently tested as an environmental ‘cleanser' in a variety of applications, i.e. metalliferous mine seepage and processing waters, organically contaminated waste water from the textile/dye industry and absorption material for oil spills. Wollastonite will be applied as long-term fertiliser and dolomite, as a substitute of asbestos in brake linings, as pollution controller of heavy metal concentrations in waste waters and as a binder to stabilize waste solids. Magnesite has been successfully applied for neutralization of acid mine wastes produced from active sulphide deposits. Zeolites (fly ash and perlite converted to zeolites were also considered) is an objective for several environmental applications, i.e. as floating absorbent for waste water ponds, as drinking water purificator or as smell abatement.     

Selection, distribution and way of development of leading industries in the Beijing Kowloon economic belt

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