构建“三强三化”保障体系 推进数字化档案建设取得实效

在城市规模不断扩张的当下,自然资源档案的数据量飞速增长,内容日趋多元,传统模式下的档案管理手段方法已较难满足时代发展需求。为此,杭州市规划和自然资源局江干分局紧紧围绕职能机构改革这一重要契机,全面推进档案信息化建设迭代升级,以数字化转型为引领,不断构建制度规范化、采编智能化、运用便利化的服务体系。近年来,该局通过不懈努力,在业务档案方面实现了100%数字化覆盖,连续十一年档案年检考核优秀,2021年被浙江省档案局评选为“示范数字档案室”。     

广州市南沙区红树林资源现状与保护

2018年3月至2019年7月,对广州市南沙区红树林资源进行了野外实地调查。研究结果表明,南沙区共有红树植物12科15属16种,包括真红树植物6科7属8种和半红树植物7科8属8种;红树林主要分布于南沙湿地公园、洪奇沥东岸14涌至17涌滩涂、仁隆围和义隆围东部河岸、蕉西水闸、大角山海滨公园、沥心沙大桥桥脚、沙仔岛、坦头村等地;红树林群落可以分为无瓣海桑(Sonneratia apetala)+桐花树(Aegiceras corniculatum)群落、无瓣海桑群落、桐花树群落、老鼠簕(Acanthus ilicifolius)群落、无瓣海桑+老鼠簕群落、卤蕨(Acrostichum aureum)群落、秋茄(Kandelia obvata)群落、假茉莉(Clerodendrum inerme)群落、水黄皮(Pongamia pinnata)群落、黄槿(Hibiscus tiliaceus)群落、桐花树+老鼠簕群落、秋茄+桐花树群落、木榄(Bruguiera gymnorrhiza)群落、银叶树(Heritiera littoralis)群落和海杧果(Cerbera manghas)群落等15种主要群落类型。为了更好地保护和利用南沙区的红树林资源,建议在宜林地补种红树植物,划定红树林重点保护区域,加强红树林监测和对入侵植物薇甘菊(Mikania micrantha)的治理,积极开展红树林生态旅游等。     

BORDER PORT MANZHOULh URBAN FUNCTION AND SPACE DEVELOPMENT

Manzhouli is the largest land port city on the Sino-Russia border, transit cargo through the land port amount-ed to 5.95 million tons, transit tourists were 304 500 in 2000. It stands at the joint place of China, Mongolia and Russi-a, faces to Siberia area of Russia, receives direct support from the Northeast China and Bohai Sea Rim Area, and possess-es priorities in geographical location, land port infrastructure, water resources, coal resources, tourist resources andgreat potentiality in economic cooperation with Russia. The future urban function is a key port on the First Eurasia Continen-tal Bridge. Manzhouli Port will keep its first place between China and Russia land transport, and it is forecasted that thetransit amount through Manzhouli Port will go up to 10 million tons in 2005 and 20 million tons in 2010. It will be construct-ed to be a trade center of the peripheral area extending to Russia and Mongolia, a key export-oriented processing industri-al zone supported by industries such as export processing industries, export agriculture, trade services, technology trad-ing and the other service industries. It keeps being a well-known touring city for trade, shopping, sightseeing, vocation,local food, recreation and cultural events. To build Manzhouli Export Processing Industry Zone will improve city econom-ic structure, and the main sectors are organic food processing, livestock products processing, garment and furniture indus-try. Moreover, Manzhouli Export Processing Industry Zone will eventually be upgraded to be a border free trade zone.The city functional transition will inevitably affect urban spatial restructure and its expansion. The city space transforma-tion will develop as such: one development axis of No. 301 highway paralleling with Bin - Zhou(Harbin - Manzhouli) rail-way which cuts through central part of Manzhouli City, and links Zhalainuocr District with central city; three urban unitsincluding central city, Zhalainuocr District and Manzhouli Interchange Trade Zone; cohesion with Aoerjin and Cuogangpastures; regional dual-nuclei structure of Hailaer City and Manhzouli City; and the Manzhouli-Zabaykalsk Free TradeZone.     

A CASE STUDY ON CONCENTRATION AND DECENTRALIZATION：BEHAVIOR AND DYNAMIC MECHANISM OF SPATIAL EVOLUTION IN METROPOLITAN AREA，NANJING，CHINA

In rapid socio-economic development,the process of concentration and dispersal of various elements tends to be more dramatic,tremendously influencing the shaping and transformation of the space in metropolitan area.Survey of spatial concentration and decentralization has thus become a basic method in examining metropolitan spatial evolution.In this research,three elements were selected as the essential indicators of the process:demographic density distribu-tion,employment density distribution and business office location.Performance of these elements in Nanjing City was exam-ined historically.As Nanjing City could be regarded as a representative of metropolitan areas in China,its situation large-ly suggestes the general characteristics in similar areas of China.Hence based on the investigation of Nanjing City,four general implications were highlighted.First ,metropolitan areas in China are in a violent process and shift of spatial concentra-tion and decentralization.Second,from now to at least the near future,concentration will continue to be the central fea-ture.Third,the landscape of metropolitan areas basically exhibits a dual structure character.The gap in environmental and ecological qualities among different districts will continue for a long time.Fourth,Central Business District (CBD) is playing an important role in helping to convert the traditionally single-centered city structure into a polycentric one.     

多目标视频运动分析系统中的多几何特征参数快速提取实现

首先通过将整个图像区域看成系列行、行内的各线段构成的集合，然后判断相邻行各线段是否满足合并条件，最后根据判断结果实现对应的目标区域几何特征参数的设计。理论与应用都表明该算法优点是：对图像只扫描一次，即可同时、并行地获得多目标区域多个几何特征参数。     

青海省盐湖资源勘查开发现状及对策研究

青海省盐湖资源十分丰富,但是盐湖资源的勘查、开发利用与保护、管理中仍然存在一些不容忽视的问题,通过青海省盐湖资源状况、勘查、开发、管理现状分析,分析、总结了存在的问题,针对存在问题提出了对策和建议.     

论我国南海资源的特点及开发利用对策

南海我国可管辖的海域面积近200万km^2，具有丰富的生物，油气，矿产等资源，是我国经济与社会可持续发展的强大支持和保障因素，具有海域面积大，资源丰富，区位优势明显，未来开发潜力大等特点，应从强化“寸海寸金”的海洋国土意识出发，通过创新管理体制和运行机制，建立强有力的海上统一执法队伍，按照统一规划，相对集中，由远及近的原则实施重点区域开发战略，全面提升南海国土资源开发利用的水平和效益。     

蔚蓝色：中华文明的再度辉煌

在数千年的历史长河中，中华民族既有因亲近海洋，在航运及船舶制造、海上贸易、海洋渔业等方面谱写下了壮丽的篇章，创造出了灿烂的海洋文明的辉煌时期，也有过因疏远海洋、丧失了世界文明领先地位，沦为“东亚病夫”而遭受任人崭割的悲惨岁月。回顾过去，展望未来，开发海洋、经略海洋，必将带来中华文明的再度辉煌。     

一种新的振幅滤波法在化磁极中的应用

本文针对低纬度地区频率域化磁极存在的问题，在频谱分析的基础上，提出了一种新的滤波方法即振幅滤波法。该方法能将低纬度地区化极磁场的频谱恢复到垂直磁化磁场的频谱，大大提高了低纬度地区化磁极的精度。