河南省城乡统筹发展的状态评价与整合推进

在分析快速城镇化背景下河南省城乡发展基本状况的基础上,基于单指标、综合指标从时空2个维度评价河南省城乡统筹发展的状态水平。结果显示:1从单指标时序特征看,河南省城乡收入水平不断提升,城乡收入差距呈波动变化状态,近期呈现较好的下降趋势;从单指标空间特征看,河南省中北部地区城乡差距相对较小,北部差别次之,南部差别较大。2从综合指标时序特征看,河南省城乡统筹发展水平呈波动上升,5个子系统的变化情况各异,城乡统筹发展的水平有待进一步提升;从综合指标空间特征方面,城乡统筹发展水平与基础、经济、公共服务3个子系统的空间分异情况较为相似,而与社会、动态子系统的空间分异情况相差很大,总体呈现以中部、西北部、北部组成的高值区与南部、东南部组成低值区的分异状态。基于评价结果分析,从时空2个维度提出今后河南省城乡统筹发展的整合推进建议。     

矿产资源潜力评价数据模型研制、开发、应用与数据集成建设

通过研发矿产资源潜力评价数据模型、应用软件及相关方法技术,并全程支撑国土资源部全国矿产资源潜力评价工作(2007~2013年),实现了全程信息数字化、预测处理GIS化、预测结果定量化、预测定位精准化、成果规范化与集成化,取得了大量创新性成果,建立了矿产资源潜力评价数据模型研制、开发、应用与数据集成核心方法技术体系。实践表明该技术体系科学有效,在矿产资源潜力评价乃至地质信息技术领域,具有开拓、引领、示范作用和里程碑意义。     

基于概念格的关联规则挖掘算法改进

增量式概念格构造算法和概念格的渐减维护算法是很重要的两类概念格更新算法,但增量式概念格构造算法只针对数据对象的增加,概念格的渐减维护算法只针对数据对象的删除,两者都具有单一性。本文针对这个问题,提出基于概念格的改进算法,不仅考察了数据对象的增加、删除,还适用于数据记录随时间的改变,满足了数据库的增、删、改操作。另外,引入一种新的关联规则兴趣度量Kulc_measure,用以衡量属性的变化对关联规则的影响程度。     

A bat-inspired approach to define transition rules for a cellular automaton model used to simulate urban expansion

A new metaheuristic approach is presented to discover transition rules for a cellular automaton (CA) model using a novel bat movement algorithm (BA). CA is capable of simulating the evolution of complex geographical phenomena, and transition rules lie at the core of these models. An intelligence algorithm based on the echolocation behavior of bats is used to discover explicit transition rules for use in simulating urban expansion. CA transition rules are formed by links between attribute constraint items and classification items. The transition rules are derived using the BA to optimize the lower and upper threshold values for each attribute. The BA-CA model is then constructed for the simulation of urban expansion observed for Nanjing City, China. The total accuracy of newly formulated BA-CA model for this application is 86.9%, and the kappa coefficient is 0.736, which strongly suggest that the interactions of bats are effective in capturing the relationships between spatial variables and urban dynamics. It is further demonstrated that this bat-inspired BA-CA model performs better than the null model, the particle swarm optimization-based CA model (PSO-CA), and the ant colony optimization-based CA model (ACO-CA) using the same dataset. The model validation and comparison illustrate the novel capability of BA for discovering transition rules of CA during the simulation of urban expansion and potentially for other geographic phenomena.     

广东红岭石英脉型钨矿床地质特征及富集规律

通过对红岭石英脉型钨矿床地质特征的研究,探讨了该钨矿床的矿化富集规律。认为,钨的成矿作用严格受区域SN向构造控制,构成一个地层、构造、岩浆、矿田“四位一体”的SN向成矿带,石英脉型钨矿床具较明显的“五层楼”式形态分带规律。     

湖南川口杨林坳钨矿床控矿因素与成矿规律研究

杨林坳钨矿是以白钨矿为主的岩浆期后高一中温热液充填交代矿床,白钨矿主要产于上古生界泥盆系杨林坳组砂岩和板溪群板岩中,受断裂构造和不整合面控制明显,岩浆活动为成矿提供了物质来源。文章在分析控矿因素的基础上,对成矿规律进行了探讨,并提出了下一步找矿预测的方向。     

黔东南岩寨金矿床地质特征及成矿规律初探

通过对东南岩寨金矿的地层、岩性、构造、矿体产出形态及围岩蚀变等矿床地质特征研究分析,结合近几年在该矿区的工作成果及认识,探讨其成矿规律。     

论新疆伊犁浅成低温热液型金矿与斑岩型铜（钼金）矿的相随相伴规律

中亚成矿域中的斑岩型铜（钼金）矿,有别于滨太平洋区的斑岩铜矿,它们大部分是形成于大洋消亡之后,与A型俯冲或后碰撞阶段的构造岩浆作用有关,并非都形成于岛弧发展阶段,且常与浅成低温热液型金矿（产于陆相-亚陆相火山岩内）时间相随、空间相伴,两者属于一个统一的岩浆系统;浅部是浅成低温热液型金矿,深部是高温斑岩型铜（钼金）矿,其成矿特点表现出两者元素组合连续、过渡与转化,两者类型相随相伴。     

Development of the second-order derivatives of the Earth’s potential in the local north-oriented reference frame in orthogonal series of modified spherical harmonics

The second-order derivatives of the Earth’s potential in the local north-oriented reference frame are expanded in series of modified spherical harmonics. Linear relations are derived between the spectral coefficients of these series and the spectrum of the geopotential. On the basis of these relations, recurrence procedures are developed for evaluating the geopotential coefficients from the spectrum of each derivative and, inversely, for simulating the latter from a known geopotential model. Very simple structure of the derived expressions for the derivatives is convenient for estimating the geopotential coefficients by the least-squares procedure, at a certain step of processing satellite gradiometry data. Due to the orthogonality of the new series, the quadrature formula approach can be also applied, which allows avoidance of aliasing errors caused by the series truncation. The spectral coefficients of the derivatives are evaluated on the basis of the derived relations from the geopotential models EGM96 and EIGEN-CG01C at a mean orbital sphere of the GOCE satellite. Various characteristics of the spectra are studied corresponding to the EGM96 model. Electronic supplementary material  The online version of this article (doi:) contains supplementary material, which is available to authorized users.     

基于本体的水系要素数据集成方法研究

简单论述了地理本体的基本概念、结构,介绍了地理本体的建模方法,提出了基于地理本体的空间数据集成框架,采用基于公共属性模板的多本体向标准本体集成的混合构架,以水系要素中的“干出滩”类为例,实现了基于地理本体的空间数据集成过程及其数据的转换,解决了数据语义异构性所带来的数据共享难题。