全球价值链下区域分工地位与产业升级对策研究——以东北三省为例   总被引：6，自引：2，他引：4  

余振  顾浩 《地理科学》2016,36(9):1371-1377

利用投入产出分析法,在测算出国家层面的各产业GVC分工地位指数的基础上,引入东北三省内的地区和产业差异因素,估算出东北三省工业产业的全球价值链分工地位。研究发现,整体上东北三省采矿业等基础工业贸易增值量较大,但存在严重的产能过剩和低端锁定威胁;而其制造工业在全球价值链中的分工地位较低,对外贸易中表现出较为明显的比较劣势,并且这一劣势还存在恶化倾向。就各省来看,基础工业方面,辽宁省在采矿业上的比较劣势相对较小,黑龙江省在采矿业上存在更为严重的产能过剩和低端锁定风险,而在制造业上吉林省的比较劣势较大。因此,东北三省要实现全球价值链分工地位提升和产业结构升级,就需要转变传统的产业发展和外贸理念,加强创新能力建设,将高新信息技术与传统工业生产相结合,发展新型工业化模式,在借鉴国外有益经验的基础上,走创新驱动的集约化发展道路。  相似文献   

基于地级市尺度的中国外资空间动态与本土产业演化   总被引：4，自引：3，他引：1  

罗芊  贺灿飞  郭琪 《地理科学进展》2016,35(11):1369-1380

伴随着全球化不断深入,国际劳动分工体系下全球生产网络逐步形成,推动跨国公司以外资直接投资为途径在全球范围内寻找有利区位。低廉的要素成本、友好的政策制度以及广阔的潜在市场使得发展中国家成为外资活跃的重要地区。外资空间动态不仅涉及发展中国家对接全球生产网络的效果,更关系到其生产格局的演变。而演化理论下的技术邻近度也会对外资空间动态和本土产业演化产生作用,使之呈现出更多样的空间差异。本文基于1998-2008年中国337个地级市的制造业数据,研究内、外资技术邻近度作用下外资空间动态对本土产业演化的影响,研究发现：①外资进入、退出等空间动态显著促进了中国本土产业演化,其中中西部最强,东部最弱,东北地区外资进入作用相对明显。②技术邻近度削弱了外资空间动态对本土产业演化的积极影响,但具体到不同区域也会出现差异。东部地区的技术关联反而有利于外资进入带来的知识溢出和外资退出带来的资源释放,表现为典型的“战略耦合”。而中部、西部和东北地区的技术关联则成为阻碍外资进入、退出促进内资产业发展的重要原因。  相似文献   

电子经纬仪交会测量系统在大型天线精密安装测量中的应用   总被引：4，自引：0，他引：4  

李宗春  李广云  汤廷松  张冠宇 《海洋测绘》2005,25(1):26-30

由于某卫星通信天线面积大、结构非圆对称,对测量精度要求高(测点精度要求为±0.3mm),决定采用大尺寸工业测量系统方法中的电子经纬仪测量系统。系统由3台T3000A电子经纬仪组成。控制网由6个9～16m高的测量墩构成。采用T3000A测角、TC2003测边,数据处理后边角网的点位精度在±0.3mm以内。3台仪器建立系统的尺度精度优于10-5。测量772点用时4h以内,交会精度优于0.3mm(RMS)。经过几次反复的调整,主面的表面精度优于0.5mm(RMS),满足了电气测试的要求。  相似文献   

Effect of Industrial Effluents on Embryos of Lefteye Flounder (Paralichthys olivaceus)     

曲克明  陈民山  马绍赛  辛福言 《海洋通报(英文版)》2003,5(2)

Industrial effluents are one of the main pollutants leading to marine pollution, especially in the littorals with highly dense population and developed industries[1]. Dyeing, electroplating and pesticide effluents are all common industrial effluents, liable to enter inshore sea area. Generally, the supervision of effluents could be carried out through chemical analysis. The determined results, however, cannot directly reflect the effects of effluents on aquatic organisms. In this respect, bioa…  相似文献   

Experimental and Theoretical Investigations of Mist Lift Cycle     

Wu Wen  Jiang Wenhao  Jiang Qing Wang Liangyan Professor  Guangzhou Institute of Energy Conversion  Chinese Academy of Sciences  Guangzhou Research Associate  Guangzhou Institute of Energy Conversion  Chinese Academy of Sciences  Guangzhou 《中国海洋工程》1991,(2)

A rectangular mist lift tube of 20 m effective height was constructed to investigate the mist generation and up flow processes with various temperatures, pressures and mass flow rates of the incoming hot water through two different mist generation plates. Parameters such as temperature, pressure and dryness of the two phase mixture at six different heights of the lift tube as well as the lift mass flow ratio were measured and analysed. A theoretical analysis was made based on simplified one dimensional model of two-velocity-two-phase flow. The calculated results were discussed regarding temperature, pressure and dryness variations along the lift tube height and compared with the experimental results.  相似文献   

Temporal and spatial variability of fecal indicator bacteria in the surf zone off Huntington Beach, CA     

Rosenfeld LK  McGee CD  Robertson GL  Noble MA  Jones BH 《Marine environmental research》2006,61(5):471-493

Fecal indicator bacteria concentrations measured in the surf zone off Huntington Beach, CA from July 1998-December 2001 were analyzed with respect to their spatial patterns along 23 km of beach, and temporal variability on time scales from hourly to fortnightly. The majority of samples had bacterial concentrations less than, or equal to, the minimum detection limit, but a small percentage exceeded the California recreational water standards. Areas where coliform bacteria exceeded standards were more prevalent north of the Santa Ana River, whereas enterococci exceedances covered a broad area both north and south of the river. Higher concentrations of bacteria were associated with spring tides. No temporal correspondence was found between these bacterial events and either the timing of cold water pulses near shore due to internal tides, or the presence of southerly swell in the surface wave field. All three fecal indicator bacteria exhibited a diel cycle, but enterococci rebounded to high nighttime values almost as soon as the sun went down, whereas coliform levels were highest near the nighttime low tide, which was also the lower low tide.  相似文献   

Spatio-temporal variability in faunal assemblages surrounding the discharge of secondary treated sewage   总被引：1，自引：1，他引：1  

R.J. Wear  J.E. Tanner   《Estuarine, Coastal and Shelf Science》2007,73(3-4):630-638

Macrofaunal assemblages inhabiting the intertidal zone surrounding an input of secondary treated effluent were sampled in order to determine how the pollution impact varied temporally and spatially. Assemblages varied along the pollution gradient formed by the Bolivar Wastewater Treatment Plant outfall in Gulf St Vincent, South Australia. While the abundance of some species did not vary, the abundance of juvenile western king prawns (Melicertus latisulcatus) and blue crabs (Portunus pelagicus) progressively decreased with proximity to the outfall. Species richness and diversity also decreased towards the outfall. An increase in nutrient content in the water adjacent to the outfall is likely to explain these changes. At distances of 4 and 5 km away, species diversity increased and the abundance of M. latisulcatus decreased, possibly due to a change in habitat from sand to seagrass. The occurrence of a storm prior to sampling on one occasion masked the effects of pollution and habitat changes. The results of this study suggest that the disposal of treated effluent into Gulf St Vincent is having a localised effect on the faunal assemblages surrounding the discharge point.  相似文献   

INDUSTRIAL LINKAGES AND RURAL INDUSTRIALIZATION: A CASE STUDY OF HENAN PROVINCE, CHINA   总被引：1，自引：0，他引：1  

李小建 《中国地理科学(英文版)》1993,3(3):255-263

The fast growth of rural industry in China has generated regional development of large rural areas. What role does industrial linkages play in Chinese rural industrialization? This is a same question as the relation between industrial linkages and regional development which has been discussed for decades and no final conclusion reached. The paper pursues the discussion and focuses on rural areas in China with special reference to Henan Province. On the basis of data from an investigation on nearly 200 industrial enterprises, this study emphasizes that the linkages play a very important role in spreading development of industry in rural areas. It is recommended that the national policies should prompt industrial linkages to upgrade the technological level of rural industry and to integrate rural industry with urban industry.  相似文献   

The recent economic development of China’s ‘million’ cities     

Yuemin Ning 《中国地理科学(英文版)》1995,5(3):202-211

Since the 1980’s, two new trends have been emerging in the economic development of the Chinese ‘million’ cities. One is the development disparity, and the other is the industrial restructuring. Firstly, in terms of per capita GDP (Gross Domestic Product), 32 ‘million’ cities are classified into 4 types. The paper thinks there are 3 main causes which bring about the development disparity. Then, the paper approaches the industrial restructuring of the ‘million’ cities. In order to shrink the gap between the coastal ‘million’ cities and the interior ‘million’ cities, the paper thinks that the central government should pay most attention to the economic development of the inland, meanwhile, the interior ‘million’ cities should speed up the economic reform and industrial restructuring.  相似文献   

A STUDY ON THE MECHANISM AND CHARACTEROF THE INDUSTRIALAND SPATIAL TRANSFERENCE OF FDI IN CHINA     

LI Guo-ping  YANG Kai-zhong  HE Qi-chun  SUN Tie-shan 《中国地理科学(英文版)》2001,11(1):1-10

1 BACKGROUND OF STUDYChina has begun to take part in the great practice ofinternational competition and opening-up in the last 1 /5 time of 20th century. In the last two decades, Chinahas become one of the areas that have the greatest potential in industrial production, thus it has rankedsecond only to USA in the flow of international capital.By the end of 1998, the real value of FDI China hasutilized has added up to $268. I billion. China has wonworld attention as a huge market for …  相似文献