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建立农村土地确权管理系统,将解决土地确权过程存在的工作效率低、工序繁琐等问题,并可对各类信息进行系统整合,有助于土地确权方面的管理工作。本文以盘山县土地确权数据为研究对象,通过对土地确权数据库理论进行分析制定了建库技术路线,并以Visual Studio 2010为开发平台,以地理信息系统为技术核心,将将Arc GIS Engine 10.1作为GIS组件,通过C#编程完成了土地确权管理系统的开发。 相似文献
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基于GIS和RS的农村集体土地产权确权研究 总被引：1，自引：0，他引：1
确定土地所有权是保护土地所有者和土地使用者合法权益、建立健全农村集体土地产权管理制度的重要手段。针对传统的调查方法周期长、精度低且费用较高等缺点,设计了农村土地产权确权的准确快速方法。阐述了GIS,RS相结合的技术手段在土地确权调查中的应用,并以宁夏回族自治区平罗县为例介绍了具体技术手段。RS和GIS集成技术在土地确权中的应用,可以有效提高农村土地产权确权效率,具有较好的现实意义和指导意义。 相似文献
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介绍了正在进行的农村土地确权登记项目,利用C#语言并基于Access数据库,从底层开发出了一套农村土地确权登记一体化系统,包含前期数据处理、地块图斑绘制、信息录入查询、批量表格导出、地图打印输出和标准数据格式转换等环节,覆盖整个确权登记过程,提高了土地确权登记工作信息化水平。 相似文献
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针对黑龙江省测绘成果资料种类繁多、数据量大、地域范围广、跨业务部门多等特点,以"天地图·黑龙江"的基础地图数据为支撑,利用Web GIS技术、数据库技术,发布测绘成果目录服务,构建基于B/S三层架构的黑龙省测绘成果查询系统,为用户提供黑龙江省测绘档案馆中测绘资料的数据浏览查询,解决数据分发和共享问题。 相似文献
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农村土地确权数据质量关系到后期维护管理与土地政策的实施及农民权益的保护,然而由于土地确权工作烦琐、经费支持不足、为降低成本而不按标准作业、影像资料分辨率低与现势性差等多方面原因,导致部分土地确权数据质量无法满足现行国家规范要求。本文分析了土地确权工作内容及图形与属性数据应该满足的条件和质量检查项目,基于ArcGIS平台及ArcEngine二次开发组件、空间图形关系判断算法、属性数据标准等研制了RLandRight农村土地确权检查软件,通过示范应用表明:可检查出图形与属性数据存在的问题,为数据修正提供依据;可保障土地确权数据质量,提高数据入库检查工作的效率。 相似文献
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With the maturation of satellite technology,Hyperspectral Remote Sensing(HRS)platforms have developed from the initial ground-based and airborne platforms into spaceborne plat-forms,which greatly promotes the civil application of HRS imagery in the fields of agriculture,forestry,and environmental monitoring.China is playing an important role in this evolution,especially in recent years,with the successful launch and operation of a series of civil hyper-spectral spacecraft and satellites,including the Shenzhou-3 spacecraft,the Gaofen-5 satellite,the SPARK satellite,the Zhuhai-1 satellite network for environmental and resources monitoring,the FengYun series of satellites for meteorological observation,and the Chang'E series of spacecraft for planetary exploration.The Chinese spaceborne HRS platforms have various new characteristics,such as the wide swath width,high spatial resolution,wide spectral range,hyperspectral satellite networks,and microsatellites.This paper focuses on the recent progress in Chinese spaceborne HRS,from the aspects of the typical satellite systems,the data processing,and the applications.In addition,the future development trends of HRS in China are also discussed and analyzed. 相似文献
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准确提取输电通道内各地物类别是进行输电通道三维建模及交跨分析的基础。为解决目前贵州等多山地区输电通道内道路提取方法稳健性低、效率低的问题,本文通过结合道路特征显著性检测与形态约束的方法对影像中多山地区输电通道内道路的快速准确提取进行了研究。首先,对卫星影像中山区道路特征进行分析,对每个像素分别计算基于道路颜色一致性和结构一致性的像素级显著值;然后,结合显著目标空间先验知识融合显著性检测结果,形成最终道路显著图,初步提取影像中道路目标;最后,分析道路与建筑物等的差异性,基于道路形态一致性定义道路形态约束条件,通过制定约束规则最终实现道路的准确提取。结果表明,该方法对于不同弯曲程度、粘连程度及影像对比度的道路都能实现快速准确提取,提取完整度、正确率、质量及耗时平均分别为97.5%、97.0%、95.6%、0.515 s。该方法稳健性高,可以快速、准确提取各种情况下道路,在输电线路工程实际中有很好的应用前景。 相似文献
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我国地球重力场研究的进展 总被引：1，自引：0，他引：1
概述了我国近年来在地球重力场研究方面所做的主要工作和取得的成果 ,包括 :① 2 0 0 0国家重力基本网的建立 ;②我国省市级局部大地水准面的精化 ;③卫星测高 ;④高阶地球重力场模型 ;⑤卫星重力探测技术。 相似文献
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本文介绍了广州市连续运行参与站系统(GZCORS)和广州市似大地水准面精化成果确立的广州市城市三维定位系统在地形图测量中的应用,并通过实例分析其精度。 相似文献
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《International Journal of Digital Earth》2013,6(6):534-549
The Qinghai-Tibetan Plateau plays an important role in global climate and environmental change and holds the largest lake area in China, with a total surface area of 36,900 km2. The expansion and shrinkage of these lakes are critical to the water cycle and ecological and environmental systems across the plateau. In this paper, surface areas of major lakes within the plateau were extracted based on a topographic map from 1970, and Landsat MSS, TM and ETM+ satellite images from the 1970s to 2008. Then, a multivariate correlation analysis was conducted to examine the relationship between the changes in lake surface areas and the changes in climatic variables including temperature, precipitation, evaporation, and sunshine duration. Initial results suggest that the variations in lake surface areas within the plateau are closely related to the warming, humidified climate transition in recent years such as the rise of air temperature and the increase in precipitation. In particular, the rising temperature accelerates melting of glaciers and perennial snow cover and triggers permafrost degradation, and leads to the expansion of most lakes across the plateau. In addition, different distributions and types of permafrost may cause different lake variations in the southern Tibetan Plateau. 相似文献
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Guofeng Wu Jan de Leeuw Andrew K. Skidmore Yaolin Liu Herbert H.T. Prins 《International Journal of Applied Earth Observation and Geoinformation》2009
The visible and near infrared bands of Landsat have limitations for detecting ships in turbid water. The potential of TM middle infrared bands for ship detection has so far not been investigated. This study analyzed the performance of the six Landsat TM visible and infrared bands for detecting dredging ships in the turbid waters of the Poyang Lake, China. A colour composite of principal components analysis (PCA) components 3, 2 and 1 of a TM image was used to randomly select 81 dredging ships. The reflectance contrast between ships and adjacent water was calculated for each ship. A z-score and related p-value were used to assess the ship detection performance of the six Landsat TM bands. The reflectance contrast was related to water turbidity to analyze how water turbidity affected the capability of ship identification. The results revealed that the TM middle infrared bands 5 and 7 better discriminated vessels from surrounding waters than the visible and near infrared bands 1–4. A significant relation between reflectance contrast and water turbidity in bands 1–4 could explain the limitations of bands 1–4; while water turbidity has no a significant relation to the reflectance contrast of bands 5 and 7. This explains why bands 5 and 7 detect ships better than bands 1–4. 相似文献
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MapGIS在南康市第二次土地调查中的应用 总被引：1，自引：0，他引：1
介绍了第二次土地调查的主要任务和MapGIS软件的系统功能。同时,以南康市为例,阐述了MapGIS软件在第二次土地调查过程中不同阶段的具体应用。 相似文献