基于2030年可持续发展目标的吉林省城镇化可持续发展评价     

马延吉  艾小平 《地理科学》2019,39(3):487-495

结合联合国2030年可持续发展目标（SDGs）构建城镇化可持续发展评价指标体系,从省内、外两个角度研究吉林省城镇化可持续发展状况。结果表明：吉林省城镇化可持续发展水平波动上升,发展趋势良好,大致可分为3个阶段;研究期内各子系统可持续发展水平均呈上升趋势,其中社会子系统上升幅度最大,经济子系统上升幅度最小。城镇化可持续发展水平空间格局呈“核心-边缘”结构,即长春市水平高、其它地区水平低;经济、社会、资源和环境子系统可持续发展水平总体上表现为“中东部高,西部低”。研究期内吉林省城镇化可持续发展水平低于黑龙江省,2015年后高于辽宁省;相较辽黑两省,吉林省社会子系统可持续发展水平较低。  相似文献   

Information for contributors on Global Geology     

世界地质学 杂志投稿者  亚洲东北 中国吉林大学 《东北亚地学研究》2007,10(1):F0003-F0003

The journal of Global Geology （English Edition ） is sponsored by the International Cen- ter of Geoscience Research and Education in Northeast Asia, Jilin University of China. The former name of the journal was the Journal of International GeoscientiJic Research in Northeast Asia which was started in 1998 and served the scientists and teachers in geosciences in the world, particularly for the scientists from the six countries of the NE Asia including China,  相似文献   

吉林省新生代玄武岩中红、蓝宝石矿找矿方向     

靳克  管宏图  于明宽  殷淑芹  郭真  贾海明  楚湘涛  任建超  王馨莹 《世界地质(英文版)》2014,(3)

通过收集前人资料和野外地质调查及地球化学分析,对中国东部发育红、蓝宝石矿的不同地区进行了对比研究,进而从寄主岩类型、寄主岩形成时代和火山机构四周发育的第四系沉积物特征角度,提出了吉林省应将伊舒带、敦密带、东宁-宽甸带作为首选的红、蓝宝石找矿方向。  相似文献   

吉林春旱期降水潜在影响因子的分离时间尺度分析   总被引：1，自引：0，他引：1       下载免费PDF全文

吴香华  牛生杰  金德镇  孙海燕 《大气科学学报》2014,37(5):548-557

基于1960—2012年的地面常规气象指标、大尺度气候指数和NOAA气候分析产品,利用功率谱周期分析、时间尺度分离分析和交叉检验的逐步回归分析等,把吉林省春旱期(4—5月)降水量分离成不同时间尺度的值,并在年代际尺度和年际尺度下分别找到显著相关的影响因子。结果表明:吉林春旱期降水存在着2~4 a的年际变化和10 a左右的年代际变化。在年代际尺度上,4月降水与前期3月南半球环球状态指数以及俄罗斯东部高纬地区的低空经向风有关,5月降水与同期北半球环球状态指数和前期4月太平洋中高纬环流有关;在年际尺度上,4月降水与前期3月混合ENSO指数和同期当地相对湿度、华东华北沿海地区的低层经向风有关,5月降水与同期北大西洋涛动指数以及局地相对湿度、地面气压有关。利用选出的影响因子对降水进行预报,估计值和真实值的相关系数分别为0.67(4月)和0.81(5月),且选择合适的影响因子比模型结构更加重要。  相似文献   

Spatial structure of central places in Jilin Central Urban Agglomeration,Jilin Province,China   总被引：1，自引：1，他引：0  

Shijun Wang  Yongchao Wang  Dan Wang 《中国地理科学(英文版)》2014,24(3):375-383

Using the radius of gyration from fractal theory, this paper describes the calculation of fractal dimensions for the four tiers of central places in the Jilin Central Urban Agglomeration(JCUA), Jilin Province, China and the structural characteristics of each tier: 1) the 1st tier central place, Changchun Proper(not including Shuangyang District), provides the most service functions and has the most stable primate position; 2) the 2nd tier central places, Jilin Proper, Siping Proper, Liaoyuan Proper and Songyuan Proper have unclear statuses and do not provide certain functions; 3) the 3rd tier central places comprise 23 county-level cities, counties and urban districts(including Shuangyang District of Changchun), exhibiting a dense spatial structure that agrees with theory; 4) the 4th tier contains the largest number of central places(248 designated towns), but they are loosely distributed. In this study, a spatial image of the JCUA was created, based on vectorized data of the urban settlement distribution, which was then modified and abstracted to create a hexagonal network covering the JCUA. Compared to the traditional central place model, the modified spatial image conforms to the K = 3 principle. In reality, however, the growth of some 3rd tier central places should be increased with the cities being upgraded to the 2nd tier so as to overcome that tier′s functional deficiency. The loose distribution in the 4th tier should also be changed. This apparent anomaly can be explained by the fact that the classic hexagon model used to describe the way market areas layout does not exist in the real world. However, this should not be viewed as an obstacle to using central place theory. If its assumptions are properly applied, it can still assist research into the spatial structure of regions.  相似文献   

Economic development and energy efficiency in Jilin Province,China     

ZHANG Huimin  QIU Fangdao  WEI Qiang  TONG Lianjun  YE Xinyue  CHENG Yeqing 《地理学报》2014,24(5):875-888

The relationship between economic development and energy consumption is revealed by employing cointegration theory, the index decomposition method, and a log-linear regression approach based on a case study of Jilin Province, China. The results suggest: 1) the economic development and energy consumption are interdetermined, whose relationship is positive and long-term. The economic development is highly depending on the energy in Jilin Province. 2) Under the condition of other unchanged factors, the change of industrial energy efficiency contributes to the energy saving, while that of industrial structure increases the energy consumption. 3) The industrial structure change enhances the energy intensity, but the energy utility efficiency change lowers it. From the view of contribution to the energy consumption, the contribution of industrial structure was more than that of the energy utility efficiency in 2000-2011. 4) In 2000-2011, the comprehensive energy intensity change and hydroelectricity energy intensity change were related to all industrial structures' change, and the influencing factors about structure of oil energy intensity change were more than those of coal energy intensity change; from the impact degree, agricultural proportion decreased exerted an positive and greater effect on lowering the energy intensity of comprehensive energy and hydroelectricity, and industrial one did on coal and natural gas. Some conclusions can be drawn as follows: the major way to promote the coordinated development of the industrial economy and energy consumption is to optimize the industrial structure by increasing the proportion of the tertiary industry and low energy consumption industrial sectors and to enhance the energy utility efficiency.  相似文献   

基于地理加权回归的吉林省人口城镇化动力机制分析   总被引：8，自引：2，他引：6  

庞瑞秋  腾飞  魏冶 《地理科学》2014,(10)

以吉林省各县域(市辖区)为基本单元,借助第六次人口普查和统计年鉴的相关数据,结合地理加权回归模型和空间自相关分析方法,讨论人口城镇化水平和国有动力、非国有动力、农业动力及外向动力等因素的空间相关关系,并以此解释人口城镇化分县域(市辖区)差异的影响因素。结果表明:国有动力对吉林省人口城镇化的影响作用最大,影响强度由中北部向西南、东南两个方向递减;农业动力和非国有动力分居二、三位,但差别不明显。其中农业动力的影响强度由西北向东南方向递减,非国有动力的影响强度由东南向西北递减;外向动力对人口城镇化的影响力较弱,影响强度各地区差别较大。吉林省人口城镇化未来发展应重视非国有动力的影响和农村现代化的作用;关注人口城镇化动力多元化,考虑实现错位发展和个性化发展。  相似文献   

吉黑东部中生代晚期中酸性岩浆活动与金成矿作用     

陈永福 《地质与勘探》2014,50(Z1):1248-1256

吉黑东部金矿床集中分布于小兴安岭北麓、完达山和太平岭（东宁-延边）,矿床类型以斑岩型-浅成低温热液型矿床为主。成矿年代大约为110 Ma左右。稳定同位素显示成矿流体具有岩浆水特征,而成矿物质则主要来源于深源岩浆,这说明吉黑东部金成矿可能与岩浆活动有关。同时,研究显示吉黑东部广泛发育一套120~95 Ma的中酸性火山-侵入岩,其与110 Ma金成矿事件时空关系密切。这套火山-侵入岩在矿区表现为英安-流纹质或安山-英安质火山岩组合和闪长玢岩、花岗斑岩及花岗岩等脉岩和小侵入体。而岩石化学特征则表明其属中酸性的钙碱性系列,为一套俯冲流体交代地幔楔起源的岩浆。区域对比研究表明,吉黑东部金成矿与俄罗斯远东地区Sikhote-Alin锡成矿、韩国南部金-银成矿可能处于同一大地构造环境的不同构造部位。成矿年代从吉黑东部向东南方向有变年轻的趋势,且成矿岩浆岩的酸性成分增强而幔源成分减少。综合区域岩浆岩和区域成矿特征,表明吉黑东部存在一期110 Ma的金成矿事件,其与中生代晚期板块俯冲及其后的岩石圈拆沉作用和弧后伸展有关,成矿大地构造环境为大陆边缘弧。  相似文献   

吉林松江河金矿床流体包裹体特征及矿床成因     

靳皇玉  于政涛  吴敬欣 《世界地质》2014,33(1):76-85

松江河金矿位于夹皮沟—海沟成矿带的东南段,矿床受一韧性剪切带控制,矿体主要赋存于SN向断裂中。按矿石自然类型,可进一步划分为蚀变岩型与石英脉型。矿化类型主要为浸染状和细脉状。依据矿物共生组合、交代与穿插关系,可将松江河金矿成矿过程划分为3个阶段:黄铁矿--石英阶段、多金属硫化物--石英阶段及石英--碳酸盐阶段。研究结果表明,包裹体类型主要为气液两相包裹体及CO2三相包裹体。成矿流体均一温度范围为138℃~355℃,盐度范围为2.23%~11.60%NaCl,密度范围为0.59~0.99 g/cm3,成矿压力为64~92 MPa,成矿深度为6.45~7.88 km。主成矿阶段含CO2三相包裹体与气液两相包裹体共存,且两种类型包裹体的均一温度相近,盐度差别较大,CO2/H2O比值降低,表明成矿流体发生了以CO2逸失为特征的不混溶或沸腾,残余流体盐度升高。成矿流体的气相成分为CO2与CH4,显示出幔源的特征。综合研究表明,松江河金矿床成因类型属于中成造山型金矿。  相似文献   

地球化学与耕地质量调查数据整合方法对比     

桑玲玲  高歌  郧文聚 《物探与化探》2014,(2):359-362,376

土地质量地球化学评估与耕地质量等级调查评价,都是涉及土地资源的质量调查与评价的基础性工作。两项成果的整合研究,是当前数据共享与学科间数据交叉融合的必然趋势。笔者将两项成果有机结合,分别从数据独立性、成果实用性、科学性等角度出发,对两项成果分别采用基于两项成果数据的叠加法、综合法和基于两项调查数据的因素法进行数据整合方法探讨,并以吉林省前郭县为研究区,对整合成果的适用性及优缺点进行讨论。结果表明,不同的整合方法各有优缺点:基于两项成果数据的叠加法可以保持成果各自的独立性;基于两项成果数据的综合法易于表达,但过于强调经验;基于两项调查数据的因素法物理意义明确,但理论支撑不足。  相似文献