1：100万图号中行号、列号正误的快速判断方法

针对多个县(市)、区土地调查文字材料将1:100万图号中的行、列号用错而产生严重缺陷的事实,本人认真学习了"国家基本比例尺地形图分幅和编号"的基础知识,并总结归纳出简易的快速判断正误的方法,以杜绝类似差错的发生.     

国际经济地理学研究的知识图谱分析

基于Web of Science核心数据库收录的1982－2020年7 260篇期刊论文及其参考文献,借助CiteSpace绘制国际经济地理学的知识图谱,梳理该领域的知识基础、研究热点和研究前沿。结果发现：1）知识基础的演进轨迹遵循了新区域主义——制度、社会、文化、演化转向的时序变化,21世纪以来,关系、演化经济地理学下的经典文献成为主要的知识来源。2）研究热点突出,创新和增长始终是研究核心,近年来韧性、全球生产网络、金融地理、全球城市、不平等、企业家精神等成为新的研究热点。3）研究前沿具有较强的问题导向,主要基于西方发达国家的产业发展实践。4）研究空间呈现英美主导的两级格局,大部分国家仍处于边缘地带。5）国际经济地理学呈现明显的数字转向、可持续转型趋势,新冠疫情对学科走向也有一定影响。借鉴国际研究经验,中国经济地理学应加强理论创新并提出具有中国实践特色的理论体系,同时推动多学科之间的交叉融合并加强从社会学视角解读社会经济活动的地理学意义。     

围绕南海问题的信息权力作用过程与机制研究

2010年以来,南海争端呈现扩大化和复杂化的态势,形成环南海周边国家侵占岛礁、域外国家广泛介入的局面,进而推动南海问题日益走向“国际化”。分析南海问题中的国家（地区）间合作与冲突关系,挖掘南海问题“复杂化”的深层原因,这是理解当前南海局势、避免战略误判的重要支撑。文章借助GDELT新闻媒体数据库,提取2013—2021年有关南海问题的事件数据,利用年代约束聚类方法将南海问题划分为矛盾上升期（2013—2018年）和域外介入期（2019年以后）,并利用社会网络分析方法探讨南海问题中的国家（地区）间合作与冲突关系以及背后的信息生产网络。研究发现：1）矛盾上升期,围绕南海问题的合作与冲突主体主要为环南海国家;2）域外介入期,美国、英国、澳大利亚等域外国家结盟合作并围堵中国,中国在与域内国家紧密合作的同时,却成为冲突关系网络的核心,冲突关系复杂、合作关系萎缩与当前人们对南海问题有所缓和的认知形成矛盾,反映信息权力的作用愈发深远;3）信息生产网络中,美、英、澳等国家主导信息制造和加工过程,表明南海问题成为各信息行为体博弈的角力场。     

Unraveling the multi-scalar residential segregation and socio-spatial differentiation in China: A comparative study based on Nanjing and Hangzhou

Residential segregation is a dual process of socio-spatial differentiation in residents and spatio-temporal heterogeneity in dwelling.However,most of the existing studies are es-tablished from the single perspective of urban residents based on demographic data,which is difficult to reveal the dynamics and complex spatial reconstruction within and between cities.With the characteristics of both stability and timeliness,the rapidly changing housing market is one of the processes and results of socio-spatial reconfiguration,and it is undoubtedly a better lens to observe residential segregation.This paper adopts methods such as multi-group segregation index,multi-scalar segregation profiles,and decomposition of segregation index,with Nanjing and Hangzhou as case cities,and establishes multi-scalar segregation profiles and comparative models based on three geographical scales of census tract,block and grid,and different residential types.A quantitative study was conducted on the degree and pattern of multi-scalar residential segregation in Nanjing and Hangzhou from 2009 to 2018.The pa-per found that the spatial segregation index is an improvement of the non-spatial segregation index.There are differences between Nanjing and Hangzhou in the evolution process of residential segregation.Nanjing has a higher degree of spatial differentiation as a whole,among which spatial components have a more significant impact.     

A proposal for the theoretical analysis of the interactive coupled effects between urbanization and the eco-environment in mega-urban agglomerations

Mega-urban agglomerations are strategic core areas for national economic development and the main regions of new urbanization. They also have important roles in shifting the global economic center of gravity to China. However, the development of mega-urban agglomerations has triggered the interactive coercion between resources and the eco-environment. The interactive coupled effects between urbanization and the eco-environment in mega-urban agglomerations represent frontier and high-priority research topics in the field of Earth system science over the next decade. In this paper, we carried out systematic theoretical analysis of the interactive coupling mechanisms and coercing effects between urbanization and the eco-environment in mega-urban agglomerations. In detail, we analyzed the nonlinear-coupled relationships and the coupling characteristics between natural and human elements in mega-urban agglomerations. We also investigated the interactive coercion intensities between internal and external elements, and the mechanisms and patterns of local couplings and telecouplings in mega-urban agglomeration systems, which are affected by key internal and external control elements. In addition, we proposed the interactive coupling theory on urbanization and the eco-environment in mega-urban agglomerations. Furthermore, we established a spatiotemporal dynamic coupling model with multi-element, multi-scale, multi-scenario, multi-module and multi-agent integrations, which can be used to develop an intelligent decision support system for sustainable development of mega-urban agglomerations. In general, our research may provide theoretical guidance and method support to solve problems related to mega-urban agglomerations and maintain their sustainable development.     

DISTRIBUTIONS AND HYDROLOGICAL CHARACTERISTICS OF TROPICAL CYCLONE RAINSTORMS AND FLOODS IN CHINA

I.horoductionPleNorthwestPacificOceanisti1elnostfrequentlyaffeCtedareaoftropicalcyclone(TC).AboLIt36percentTCoftheworldoccurinffosarea[2],andthenumberofTCWhichlandedonChinawiti1n1akimumwindforcescalesoverlOisabout35percentofti1atintheeastemcoastalcoLUitriesofAsia[l].BothrainstormsandfloodsMide,theidriuenceofTCareheaVyinChina,suchastherainfalldePthof2749mm/3datXinliao,Taiwanandpeakdischargeof44,6oOm'/satHuanggo(55,42okn'),YalujiangRjver.Therefore,TCisanimportantfaCtorforflooddisas…     

1994年6月广东省特大洪涝期间气象要素的小波分析

通过对１９９４年６月广东洪涝期间省内南雄与电白两站逐时地面降水、气压和温度的小波分析,清楚地将影响两站的不同尺度的扰动显示出来,利用小波方差图可帮助确定该段时间的主要天气系统,利用小波逆变换可对原序列进行多种形式的重构。     

COSMIC及其在气象领域的应用

COSMIC是利用现代遥感技术、通信技术和计算机技术解决当今地球科学重大问题的地球科学卫星探测系统。作为GPS／MET的后续计划，主要是为了进行气象与气候研究、气候监测、太空天气和大地测量等研究。COSMIC计划于2003年之前发射8颗低轨卫星，8颗卫星每天可进行4000次GPS观测。本文介绍COSMIC系统组成及COSMIC数据应用。     

FY-1C可见光通道衰减分析及订正试验

利用FY-1C连续两年的遥感资料,以敦煌辐射校正场为分析区,系统分析了FY-1C可见光、近红外通道的衰减特征,开展了通道衰减订正试验。分析结果表明,FY-1C除可见光通道1衰减强烈外,其它各可见光、近红外通道衰减性能稳定。利用统计分析法,可以建立定标系数衰减订正量随时间的变化关系。订正后的定标系数与2000年辐射校正场外定标实验结果一致性很好。更新后的定标系数可以有效克服通道衰减带来的通道反射率测值误差,提高FY-1C可见光、近红外通道遥感资料定量应用的精度。     

中天山天湖东铁钼矿含矿片麻状花岗岩年代学、地球化学和锆石Hf同位素-对于中天山早古生代构造演化的启示

以中天山东段的天湖东铁钼矿含矿花岗岩为例,在LA-ICP-MS锆石U-Pb年代学测定其为早古生代花岗岩（（445.3±4.6） Ma）基础上,通过岩相学、地球化学及锆石原位Hf同位素组成等多方面研究,探讨该岩体的成岩作用及其构造背景。天湖东含矿片麻状花岗岩的主要矿物为斜长石、石英、钾长石,并含少量黑云母和角闪石等。全岩地球化学分析结果表明,该片麻状花岗岩高硅、弱富铝、富钙、富钠而贫钾,ASI值为0.68~0.82,属于准铝质钙碱性花岗岩,总体上富集大离子亲石元素（LILE）Rb、Ba等和轻稀土元素La、Ce、Nd等,而亏损高场强元素Nb、Ta、Ti、Yb等,轻重稀土分异明显,轻稀土分异较为明显,而重稀土分异不明显,表现出典型岛弧岩浆岩的地球化学特征。锆石的ε_Hf(445 Ma)值为-6.31~-1.77,二阶段Hf模式年龄（T_DM2）为1.538~1.825 Ga,表明该花岗岩的源区主要为壳源物质。综合分析上述资料,认为天湖东铁钼矿片麻状花岗岩是由俯冲过程中地壳物质重熔的产物。结合前人的研究和本课题组的新近研究成果认为,在早古生代时,中天山为岩浆弧构造环境,形成一系列的钙碱性岩浆岩,而该岩浆弧的形成可能是受到介于吐哈陆块和塔里木板块之间的古天山大洋在早古生代时期向南俯冲而形成的。