RECENT GEOGRAPHY DISSERTATIONS AND THESES COMPLETED AND IN PREPARATION

Titles followed by an asterisk in the list below are available on interlibrary loan. The next list of titles will be published in the November, 1969 issue. The list has been prepared by Leslie Hewes of the University of Nebraska.     

RECENT GEOGRAPHY DISSERTATIONS AND THESES COMPLETED AND IN PREPARATION

Titles followed by an asterisk in the list below are available on interlibrary loan. The next list of titles will be published in the November, 1967 issue. The list has been prepared by Leslie Hewes of the University of Nebraska.     

RECENT GEOGRAPHY THESES COMPLETED AND IN PREPARATION

Titles followed by an asterisk in the list below are available on interlibrary loan. The next list of titles will be published in the November, 1962 issue.     

秦岭珍稀濒危植物资源的利用价值与保护

秦岭分布着国家保护的珍稀濒危植物４２种,其中属国家一级保护１种,二级保护１５种,三级保护２６种．这些珍稀濒危植物在医药、木材、花卉、化工等方面具有较高的开发利用价值     

Recent Geography Dissertations And Theses Completed And In Preparation

Titles followed by an asterisk in the list below are available on interlibrary loan. The next list of titles will be published in the October, 1971 issue. The list has been prepared by Leslie Hewes of the University of Nebraska.     

THE VERTICAL AND HORIZONTAL EXPANSIONS OF CHINA'S CITY SYSTEM

Most studies of the size, growth, and distribution of cities have been based on Western economies and have identified economic factors such as scale and agglomeration economies and level of economic development as major determinants of urban growth. It is unclear whether these generalizations are applicable in socialist economies. In this paper, I argue that institutional factors have played key roles in shaping China's city system, which is characterized by declining population concentration across cities and by tremendous vertical (population growth of cities) and horizontal (addition of new cities) expansions. The empirical analysis focuses on describing the size distribution of cities, estimating a multivariate model predicting the population growth of cities, and performing a logistic regression analysis of new and existing cities. The findings underscore the effects of urban and regional development policies, socialist institutions, changes in the urban administrative system, and state and local government interests, and suggest that they as a whole are more important than economic factors in explaining the attributes and changes of China's city system. [Key words: urban growth, city system, institutional factors, China.]     

中国八大区的人口增长、经济发展和经济圈规划

作者划分全国为八个人口大区,对各大区的人口分布特点、人口和经济发展的关系,人口与经济区规划的特点作一中观经济学的理论和现实分析.     

地理信息科学领域国际学术期刊等级的调查分析

2013 年7 月至8 月,作者开展了首次“中国地理信息科学（GISci） 领域科研人员心目中的本领域国际学术期刊等级”问卷调查,对回收的37 份问卷进行分析后得出了中国（含港澳台地区） GISci 领域科研人员心目中的本领域55 种国际学术期刊排名情况。比较了本次调查结果与国际上此前公布的唯一一次、但无中国学者参与的GISci 领域国际学术期刊等级问卷调查结果间的异同。与SCI/SSCI 期刊影响因子相比照,发现目前SCI/SSCI 检索期刊总体上能较好地覆盖GISci 领域的国际学术期刊,但SCI/SSCI 期刊影响因子尚不能较好体现中国学者心目中本领域期刊的等级。本次问卷调查结果的公布能够促进GISci 领域的中国青年科研人员及研究生对本领域学术期刊的了解,避免目前常常仅以影响因子来评价本领域国际学术期刊所产生的偏颇。     

A New Method for Finding Geographic Centers,with Application to U.S. States

The geographic center of a region is a fundamental geographic concept, and yet there is no commonly accepted method for its determination. This article discusses some of its history as well as its definition and calculation, and a new method for its calculation is suggested. The new method minimizes the sum of squared great circle distances from all points in the region to the center. This entails (1) projecting regional boundary points using an azimuthal equidistant projection, (2) finding the geographic center of the projected two-dimensional region, and (3) then transforming this location back to a latitude and longitude. This new approach is used to find the geographic center of the contiguous United States and to provide a new list of the geographic centers for U.S. states. This list improves on the widely used but inaccurate list published by the United States Geological Survey in 1923.     

"富营养化湖泊治理及湖泊管理昆明国际讨论会"综述

湖泊富营养化是国际上普遍存在而倍受关注的问题。以国家列为“三河三湖”重点环保项目整治的滇池为首的云南九大高原湖泊中,有6个已富营养化。在云南省即将大规模开展湖泊治理工作之际,为借鉴国际湖泊治理及管理的方法及成功的经验,2001年11月召开了此次会议。有众多国际湖泊学权威在内的10个国家的163名专家出席会议。重点讨论了5个主题：湖泊治理及管理研究;湖泊环境变化的沉积记录;湖水氮、磷负荷与湖泊生态健康;湖泊污染与治理;湖泊富营养化过程。专家们对云南高原湖泊的治理提出了4个方面的建议：以改善、恢复湖泊生态系统结构的方法控制富营养化;清淤一定要慎重;加强湖泊富营养化过程与机制的研究;加强流域管理研究。会议最后发表了《昆明宣言》,建议建立云南高原湖泊国际研究中心。     

Vannforekomster i Norge med naturvitenskapelig interesse

The purpose of Project Aqua is to prepare an international list of fresh- and brackish-water areas which are of importance for research and education. A preliminary list of Norwegian Project Aqua-sites is given in Table I, and their geographical location is shown in Fig. 1. The criteria used in determining the scientific value of these areas are given with examples.     

面向ResearchGate的古气候文献数据采集系统的研制与应用测评

论文基于Linux平台,利用Python(V3.6)和MySQL(V5.7),开发了一套“面向ResearchGate的古气候文献数据采集系统”;并且通过人工判读从全球古气候资料共享网(https://www.ncdc.noaa.gov)数据库中遴选出1450篇古气候重建论文,对关键词进行了分类汇总,初步构建了用于古气候文献检索的关键词表。依据这一关键词表,利用古气候文献数据采集系统,从ResearchGate数据库中进行了文献检索。针对来自ResearchGate的32493篇文献和来自NCDC的1450篇文献,通过时间尺度、代用资料类型、气象要素、研究地区(国家)4个维度关键词词频的对比分析,发现2套文献数据关键词词频的相对差异基本一致。这表明依据初步构建的关键词表,自ResearchGate检索获取的古气候重建文献是有效的,能反映古气候重建研究现状。如此庞大数量的研究论文为下一步收集未被NCDC收录的古气候重建结果提供了丰富的数据源。“面向ResearchGate的古气候文献数据采集系统”达到了预期设计目标。     

禁忌搜索算法在图像匹配中的应用研究

搜索策略是图像匹配研究的主要问题之一,对匹配算法的执行速度和最终的匹配精度都有很大的影响。该文将禁忌搜索算法的思想用于图像匹配的搜索过程,并进行了改进,构造了永久禁忌和暂时禁忌两种禁忌表,每次搜索都将候选解中的点分别放入不同的禁忌表中,再利用基于灰度的匹配方法,以归一化积相关为相似性度量准则,克服了传统的归一化积相关图像匹配算法耗时过长的缺点,可以在不失匹配精度的条件下,大大减少匹配所用的时间,实现了准确而快速的图像匹配。     

福建中亚热带天然阔叶用材林择伐技术Ⅰ.基于树种特征的目标树种清单

依据树种的最大直径、干形、枝下高、生长快慢、木材价值、保护等级等6个重要特征指标,参照各指标的标准,筛选出福建中亚热带天然阔叶用材林目标树种,共计26科62属79种,其中针叶树种15种、阔叶树种64种,优质目标树种39种、良好目标树种29种、特殊目标树种11种。     

Study of living fossil of historic cities--taking historic city Ping Yao in world heritage list as an example

1 About "Living Fossil"Some things like stones turned from the bodies of ancient living beings underground are called "fossils" in archaeology. We can know the evolvement of living beings and make sure the age of the stratum by studying fossils[1].The city is one of the most important geographic phenomena engendered because of human activities. First of all, it is because of rarity that the historic cities in world heritage list are assimilated to "living fossils". They normally exerted grea…     

The IASPEI procedure for the evaluation of earthquake precursors

Full scientific evaluation of proposed earthquake precursors for earthquake prediction is a problem because independent testing is difficult or impossible. To approach this difficulty, and to assess the current state of the art of earthquake prediction research, IASPEI has devised a peer-review procedure for precursor evaluation. The procedure does not consider predictions of impending earthquakes, but evaluates case histories of proposed precursors for past events according to stated validation criteria, which are specified in terms of guidelines concerning the hypothesized physical model, data quality, anomaly definition, the rules of association of precursor with earthquake, and statistical significance. So far, five precursors have been placed on a preliminary list of significant earthquake precursors, although none has satisfied the validation criteria well enough to ensure that their placement is permanent. Exclusion of a precursor from the list does not mean it is useless, but further work is required if it is to become convincing. The main objectives in producing the list are to establish a consensus on the criteria which a precursor must satisfy to be recognized as validated, and to find case histories which satisfy these criteria. Further nominations of precursor candidates are requested for evaluation by the IASPEI procedure.     

三峽地区喀斯特洞穴及动物群

本文记述了四川万县盐井沟和巫山大庙山原期夷平面上的喀斯特洞穴及其动物群。论证了山原期夷平面的剥夷时期为新第三纪;洞穴生成时期为上新世;其堆积为更新世。并对万县盐井沟动物群的时代及所属层位提出了讨论。     

社区可持续发展指标体系研究——以上海崇明为例

本文探索了在专业人员指导下的小组参与方法建立符合中国国情的社区可持续发展指标体系。研究以上海崇明为例,分析了不同社会群体对可持续发展的认识和需求,比较了不同经济发展水平、不同社会背景和不同决策层面对可持续发展的不同关注点,提出由4个核心指标、7个扩展指标和5个附加指标构成的社区可持续发展指标体系,为其他地区制订可持续发展指标体系提供了参考,并有利于实施社区发展可持续性的评估。     

新时期区域规划的基本任务与工作框架

进入21世纪,中国新一轮区域规划蓬勃兴起并得到广泛开展,但研究人员对区域规划的基本任务及工作框架的认识并不统一、明确。在总结和梳理区域规划特点、国家需求及既有区域规划经验和成果的基础上,提出了新时期区域规划10项基本任务,即:区域整体功能定位,城镇体系建设布局,交通、能源等基础设施布局,产业分工与空间布局,水土资源开发、利用与保护,生态环境保护与治理,科教文卫资源整合与人力资源开发,区域发展的政策体系,区域规划实施的保障机制,需统筹协调解决的其他重大问题。根据上述基本任务,可以建立新时期区域规划的参考工作框架,该框架体系包括5个工作阶段:系统分析阶段,模拟和预测阶段,规划发展阶段,协调决策阶段,跟踪调控阶段。在此框架下,对区域规划各阶段工作目标和重点进行了深入阐述。