广东山区工业发展刍议

本文分析了广东山区工业发展的有利条件与存在问题，提出山区工业发展要采取超常规，跳跃式发展战略，立足本地优势资源，发展资源型工业，重点发展以生物资源为原料的工业，把资源优势转变为经济优势，同时根据市场需求发展市场型工业，尤其高新技术工业；既要立足理现有工业，加速改造挖潜，促其上水平、上规模、出效益、又要选准项目，大胆投入，发展有造血功能的骨干企业并调整和优化工业结构。     

湖南岩溶水资源特征及其开发利用

本文从含水地层、构造、地貌等方面阐明了湖南省岩溶水的富集特征，对其埋藏条件、时空变化、水化学等进行了较系统的研究，并把岩溶水资源分为湘西北、湘中和湘南三大岩溶水资源区，并对其开发利用进行了探讨。     

因特网上的有关地学资源

资源共享可以促进学科的发展。下面提供一些有关地理、地质学和地图方面的信息资源地址。(1)关于地理学方面的网站美国地理学者协会(AssociationofAmericanGeographer)网址:http://www.aag.org/index.html美国地理学者协会(AAG)是一个科学、教育团体。建于1904年。它的6500名成员相互交流地理学研究的理论、方法及实践。每年AAG都召开一次年会。AAG拥有两份刊物。一份为《TheProfessinalGeographer》,另一份为《TheAnnalsoftheAssociationofAmericanGeographers》。大地测量参考(LandSurveyorReferencePage)。网址为:http://www.l…     

The processes and characteristics of mass balance on the Urumqi Glacier No. 1 during 1958–2009

As a solid reservoir, a glacier can regulate regional water resources. The annual net mass balance directly reflects the fluctuation of the glacier and climate variability. Based on 51 years of mass balance observation data, the mass balance of Tianshan Mountains Urumqi Glacier No. 1 experienced a nine times positive balance fluctuation and nine times negative balance fluctuation. There were 35 and 16 negative and positive balance years, respectively. From 1996/97 to 2008/09, 12 consecutive negative balance years were observed at Tianshan Mountains Urumqi Glacier No. 1. These results demonstrate that the Urumqi Glacier No. 1 is experiencing a strong negative balance, and the strongest negative balance, -931 mm w.e. (mm water equivalent), during the observation period occurred in 2008. In addition, the cumulative mass balance reached 13,709 mm w.e. in 2008. However, in 2009, the mass balance was positive at 63 mm w.e. The equilibrium-line altitude changes with the fluctuation in the mass balance, and the effective mass balance gradient is 7.4 mm/m. In this paper, the headwaters of the Urumqi River were analyzed using meteorological data from 1958 to 2009, including the average seasonal temperature and precipitation. The results showed that the main factor associated with the mass balance variation of Glacier No. 1 is the fluctuation in the summer air temperature, followed by changes in the precipitation.     

美国佛罗里达生态工程典范之一——佛州西南的湿地公园

<正>美国佛州最西南端的湿地公园-自由公园(Freedom Park)位于佛罗里达州的科利尔县(Collier County),邻近墨西哥湾,地处那不勒斯市的中心地带,于2009年建成,面积为20hm2。它的总体设计充分应用了生态工程原理,即应用生态学、系统学、水文学等学科的基本原理和方法,通过系统设计、调控和技术应用,对已破坏的生态     

黔南城镇化建设中的气象灾害预警系统研制

建立对黔南气象灾害历史数据库并应用GIS技术进行灾害区划,根据数学模型计算得到的重大灾害重现期指标,构建黔南城镇化建设中气象灾害影响的决策建议平台.用针对不同区域研究得到的气象灾害预警阈值,来自动过滤系统调取的区域自动气象站实时要素数据,同时结合提取的雷达回波和数值预报等气象预报指标,完成系统对各乡镇和重点区域的实时气象灾害监测预警.     

欠发达地区区域低碳创新能力评价研究

从欠发达地区区域低碳创新能力的内涵界定出发,将其评价对象分解为5类认同度较高的一级指标,并确立29个二级指标.选择国内部分欠发达省份作为实证分析对象,利用因子分析法建立评价模型,对其区域低碳创新能力进行定量评价和比较.在此基础上,就如何提升欠发达地区的区域低碳创新能力,从构建低碳产业和能源体系、建立“碳交易”市场机制、完善区域创新服务平台、多元化投融资体系4个方面提出对策建议.     

环境管制对河南省煤炭企业竞争力的影响研究

选取河南省7家大型煤炭企业为研究对象,实证分析环境管制对其竞争力的影响。结果发现,严格的环境管制不但不会影响企业竞争力,反而有助于企业竞争力的提升。但与核心技术、产品差异化和基础设施相比,环境管制对企业竞争力的提升作用还不够显著。结合劳动成本对其竞争力的负面影响,河南省煤炭企业消化环境管理成本的能力还比较薄弱,仍然停留在低成本的比较优势阶段,环境技术创新尚未成为企业竞争优势的重要来源。     

Generating hierarchical strokes from urban street networks based on spatial pattern recognition

Strokes are products of a higher-level aggregation of street segments that can reflect functional importance and perceptual significance that is associated with them in human spatial mental conceptualizations, which is of vital importance for network analysis, street selection, and map generalization. Street properties (e.g., street names) and angles between street segments are the two main elements used for generating street strokes according to the continuity principle of perceptual grouping into networks. However, it is difficult to automatically generate strokes with good continuity from street networks with multiple lanes such as dual carriageways or complex street junctions. This article proposes a method for generating street strokes that maintain good continuity across multiple lanes and complex street junctions. The proposed method first detects dual carriageways and complex junctions in street networks and then generates strokes according to the continuity principle of perceptual grouping. Finally, it groups the generated street strokes across the dual carriageways and complex street junctions to maintain good continuity. Moreover, the generated strokes are hierarchically ranked based on stroke length and centrality measurements. Experimental studies demonstrate the validity and effectiveness of the proposed method. The result shows that the generated street strokes maintain good continuity and reflect well the hierarchical structure of the street networks.