东北红豆杉植物地理学研究

总结了东北红豆杉的地理分布概况和分布区特点，绘制了分布图，以在我国境内分布区域的主导气象因子构成指示指标组建立了东北红豆杉自然地理分布模型，并通过实例证明了该模型的有效性。     

基于CiteSpace的中国产业转移研究热点与趋势分析

产业转移是推动区域协调发展的重要途径,随着国内产业转移规模的逐步扩大,对产业转移进行研究有着重要现实意义。基于CiteSpace软件,对中国知网(CNKI)数据库内产业转移相关研究文献进行知识图谱结构的可视化分析。结果表明:1992年至今,我国在产业转移领域的研究经历了缓慢增长期、高速增长期和发展瓶颈期3个阶段;作为多学科交叉领域,作者和研究机构尚未建立广泛合作关系;产业转移相关研究主要集中在转移行业、转移模式、转移地区、转移效应四大主题,既有定性描述也有定量分析;京津冀、长江经济带、“一带一路”沿线的区际产业转移,以及环境规制、环境污染与产业转移间的关系是近年来学者们关注的重点。未来研究应拓宽研究区域和研究对象,同时进一步完善定量分析的框架体系。     

武汉市工程地貌条件综合评价

结合武汉市的具体情况，在综合分析的基础上选取了２１个工程地貌条件评价因子，采用层次分析法确定权重和主导因子，将各评判因子模糊量化后，对武汉市城市工程地貌条件进行综合评价，作出武汉市工程地貌条件等级评价图。     

A geostatistical approach for mapping thematic classification accuracy and evaluating the impact of inaccurate spatial data on ecological model predictions

Spatial information in the form of geographical information system coverages and remotely sensed imagery is increasingly used in ecological modeling. Examples include maps of land cover type from which ecologically relevant properties, such as biomass or leaf area index, are derived. Spatial information, however, is not error-free: acquisition and processing errors, as well as the complexity of the physical processes involved, make remotely sensed data imperfect measurements of ecological attributes. It is therefore important to first assess the accuracy of the spatial information being used and then evaluate the impact of such inaccurate information on ecological model predictions. In this paper, the role of geostatistics for mapping thematic classification accuracy through integration of abundant image-derived (soft) and sparse higher accuracy (hard) class labels is presented. Such assessment leads to local indices of map quality, which can be used for guiding additional ground surveys. Stochastic simulation is proposed for generating multiple alternative realizations (maps) of the spatial distribution of the higher accuracy class labels over the study area. All simulated realizations are consistent with the available pieces of information (hard and soft labels) up to their validated level of accuracy. The simulated alternative class label representations can be used for assessing joint spatial accuracy, i.e., classification accuracy regarding entire spatial features read from the thematic map. Such realizations can also serve as input parameters to spatially explicit ecological models; the resulting distribution of ecological responses provides a model of uncertainty regarding the ecological model prediction. A case study illustrates the generation of alternative land cover maps for a Landsat Thematic Mapper (TM) subscene, and the subsequent construction of local map quality indices. Simulated land cover maps are then input into a biogeochemical model for assessing uncertainty regarding net primary production (NPP).     

边着色图上单色三角形个数的一种证明

通过赋权的方法讨论了单色三角形数量的范围,给出一种较简单的证明,介绍了板植图的存在性。     

中国独立型环境税方案设计及其效应分析

环境税是当前国家正在推进的一项重要的环境经济政策改革。本研究从分析环境税的内涵和实施基础出发,提出了我国独立型环境税税制设计方案,对污染排放税目、污染产品税目、生态保护税目和碳排放税目的具体税制要素进行了设计,测算了不同组合方案下的环境税可能收入水平。利用环境CGE模型分析了环境税征收对GDP、物价、生产、消费、贸易和要素资源配置的影响,提出了环境税的实施路线图。     

水利工程高危作业人因评价体系中的认知图理论研究

为加强水利工程施工安全管理和预防事故发生,通过建立认知地图对高危作业中的人为因素进行了分析。在修订的人为因素分析与分类系统(HFACS)对高危作业人为因素进行识别的基础上,通过引入认知地图理论,建立了人为因素的因果认知地图并进行头节点、尾节点和中心性分析;提出认知广度和认知深度概念,通过数理统计各人为因素出现的频数和采用G1法求其各因素权重,建立二维平面认知地图,对事故的关键影响因素进行了识别和分析。结果表明:教育培训、作业环境和人员健康状况是导致高危作业事故最核心因素,该方法能有效对水利工程人为因素进行分析研究,具有一定适用性。     

一个基于土地利用详查的中国土地资源利用区划新方案

文章简要总结了中国土地资源利用分区工作,进而提出了中国土地资源利用区划的原则、依据和指标体系,确立了中国土地资源利用区划体系与分级。在此基础上,基于《全国土地利用详查》的分县汇总数据,以分县为单元,把自上而下的定性分析和自下而上的定量归并两种区划途径相结合,在县域土地利用结构类型聚类分析的基础上,承继前人的相关工作,提出了一个由12个土地利用区和67个土地利用亚区构成的中国土地资源利用区划新方案,编制完成中国土地资源利用分区图。该方案首次划分出了东南沿海区和藏东南-横断山区两个土地利用区,与以往的方案相比有所创新和发展;土地利用亚区的划分则强调国土开发的重点地区和土地严重退化或生态脆弱地区,从而更具实用性。     

Creating affordable Internet map server applications for regional scale applications

This paper presents an overview and process for developing an Internet Map Server (IMS) application for a local volunteer watershed group using an Internal Internet Map Server (IIMS) strategy. The paper illustrates that modern GIS architectures utilizing an internal Internet map server coupled with a spatial SQL command language allow for rapid development of IMS applications. The implication of this approach means that powerful IMS applications can be rapidly and affordably developed for volunteer organizations that lack significant funds or a full time information technology staff.     

Creating a larger role for environmental psychology: The Reasonable Person Model as an integrative framework

We argue that the environment, broadly construed, has a profound effect on human cognition, action, and well-being. If this is true, then the field of environmental psychology has a far larger potential to aid humanity than is generally realized. We suggest that the field would be more likely to achieve this potential if it viewed environments from the perspective of human informational needs, and focused on environmental/informational patterns that have the potential to make it easier for people to help themselves. Further, achieving such benefits could be greatly enhanced by taking advantage of the many opportunities available for collaborating with researchers in other areas of psychology. The reasonable person model is offered as a perspective that could facilitate moving in these various new directions while taking advantage of the considerable existent knowledge about human–environment interactions that is currently underappreciated.