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加强中国页岩气资源管理的思路框架

天然气工业 2011年第12期31卷 115-118,133页

作者：张大伟国土资源部油气资源战略研究中心

为加强中国的页岩气资源管理,创新工作思路,全面梳理了页岩气资源管理的现状及存在的问题,明确了管理工作的思路和原则,确定了总的目标和主要任务;提出了页岩气资源管理的主要内容和工作重点:开展页岩气资源发展战略与政策研究,编制勘... 详细信息

为加强中国的页岩气资源管理,创新工作思路,全面梳理了页岩气资源管理的现状及存在的问题,明确了管理工作的思路和原则,确定了总的目标和主要任务;提出了页岩气资源管理的主要内容和工作重点:开展页岩气资源发展战略与政策研究,编制勘查开采规划,建立页岩气资源管理制度体系和标准体系,并开展国内外形势分析和跟踪;确立页岩气作为独立矿种的法律地位,对其按独立矿种进行矿业权管理,并制定市场准入、竞争出让、合同管理、依规退出等系列原则;建立页岩气资源储量管理、监督管理、战略调查管理、信息资料管理等机制和制度,以大力推动中国页岩气资源的有效勘探和开发。

关键词：页岩气资源管理思路框架矿业权储量管理监督管理战略调查

The application of geographic information technology to coastal geomorphology

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Acta Oceanologica Sinica 2009年第5期28卷 49-57页

作者： GUO Wei LI Shuheng ZHU Dakui School of Human Settlements and Civil Engineering Xi＇an Jiaotong University Xi＇an 710049 China Department of Computer Sciences Xi＇an Jiaotong University Xi＇an 710049 China Department of Urban and resources Sciences Northwest University Xi＇an 710032 China Faculty of Environmental Sciences University of Waterloo Waterloo N2L3G1 Canada Key Laboratory of Coast ＆ Island Development of ministry of Education Nanjing University Nanjing 210093 China

With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources and different formats has become a major research field in coastal geomorphology by using Geographic information System （GIS）. This paper puts forward a new methodology framework of GIS techniques in coastal ocean geomorphology, including data acquisition, process, analysis, and representation. It focuses on some major GIS techniques to study the land-ocean interaction mechanism, such as spatial analysis, submarine topography model and three-dimension （3D） visualization, and apply its result to coastal urban planning, harbor site selection and geomorphology environment about coral reef and islands on the continental shelf. The case studies cover the whole coastal ocean to serve the social community, economical development and diplomatic rights for decision-making all round in the coastal zone. The research shows clearly that the application of coastal multi-source geospatial platform has changed the traditional coastal geomorphology science dramatically from its research scope, fields and methods, however, as made clear in this paper, extracting accurate information from remote sensing data and GIS databases for coastal geomorphological applications is a nontrivial challenge that requires the combined knowledge and skills of information scientists and geomorphologists.

关键词： coastal geomorphology geographic information system (GIS) spatial analysis threedimensional visualization

P2. traffic optimization

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Science china(information Sciences) 2012年第7期55卷 1475-1492页

作者： ZHANG GuoQiang 1,2.,TANG MingDong 3 ,CHENG SuQi 2.4 ,ZHANG GuoQing 2.,SONG HaiBin 5.,CAO JiGuang 6 & YANG Jing 7 1 School of Computer Science and Technology,Nanjing Normal University,Nanjing 2.0046,china 2.Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190,china 3 School of Computer Science and Engineering,Hunan University of Science and Technology,Xiangtan 4112.1,china 4 Graduate University of Chinese Academy of Sciences,Beijing 100190,china 5.Nanjing R&D center,Huawei Technologies,Nanjing 2.0012.china 6 china Academy of Telecommunication Research of MIIT,Beijing 100191,china 7 china Mobile Research Institute,Beijing 10005.,china 1. School of Computer Science and Technology Nanjing Normal University Nanjing 210046 China2. Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China3. School of Computer Science and Engineering Hunan University of Science and Technology Xiangtan 411201 China4. Graduate University of Chinese Academy of Sciences Beijing 100190 China5. Nanjing R&D Center Huawei Technologies Nanjing 210012 China6. China Academy of Telecommunication Research of MIIT Beijing 100191 China7. China Mobile Research Institute Beijing 100053 China

Peer-to-peer (P2.) based content distribution systems have emerged as the main form for content distribution on the Internet,which can greatly reduce the distribution cost of content providers and improve the overall system ***,the mismatch between the overlay and underlay networks causes large volume of redundant traffic,which intensifies the tension between P2. content providers and ***,how to efficiently use network resources to reduce the traffic burden on the ISPs is crucial for the sustainable development of P2. *** paper surveys the state-of-art P2. traffic optimization technologies from three perspectives:P2. cache,locality-awareness and data *** details,comparison between these technologies and their applicabilities are presented,followed by a discussion of the issues that remain to be addressed and the direction of future content distribution research.

关键词： P2. traffic localization P2. traffic optimization P2. cache locality-awareness network coding content-centric network

Archean relic body at lower crust in Sulu area:Evidence from magnetic data

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Chinese Science Bulletin 2003年第6期48卷 589-593页

作者： WU Qifan1,2. LU Fengxiang3, LIU Qingsheng3, ZHENG Jianping3, WANG Maoji2.& WU Wenli4 1. Department of Engineering Physics, Tsinghua University, Beijing 100084, china 2. Aero Geophysical Survey & Remote Sensing center, Beijing 100083, china 3. china University of Geosciences, Wuhan 430074, china 4. Institute of Geophysical & Geochemical Exploration, Langfang 065.00, china Aero Geophysical Survey & Remote Sensing center Beijing 100083 China china University of Geosciences Wuhan 430074 China Institute of Geophysical & Geochemical Exploration Langfang 065000 China Department of Engineering Physics Tsinghua University Beijing 100084 China

After the new 1︰1000000 aero magnetic data were processed and the three-dimensional inversion work was carried out, a vast high magnetic body northwestward was discovered. The magnetic body is located at the depth of about 2. km on the west side of Tanlu fault and at about 2.0}km on the east side of Tanlu fault beneath the Sulu area. There is a difference of vertical distance of 3—5.km in depth between both sides. We think that the magnetic body is an Archean metamorphic plate and belongs to the North {2. block. The discovery of the magnetic body is significant for us to reconstruct the structure model of the Sulu orogenic belt, delineate the suture of collision between the North {2. block and the Yangtze block, and estimate the depth of slipping surface when the eastside of Tanlu fault moved northward.

关键词：苏鲁地区地壳下层太古代残余体地球物理调查区域性磁场三维反演苏鲁造山带郯鲁断裂带大别-苏鲁超高压变质带

ANALYSIS ON land-USE CHANGE AND SOCIO-ECONOMIC DRIVING FACTORS IN H AINAN ISland DURING {2.YEARS FROM 19{2.TO 1999

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Chinese Geographical Science 2002年第3期 2-7页

作者： XU Xin-liang 1 ,ZENG Lan 2. ,ZHUANG Da-fang 1 (1.Institute of Geographical Sciences and Natural resources Research,t he Chinese Academy of Sciences,Beijing 100101,P.R.china 2.{2. Consultative center,Institute of Macro-economy,Natio nal Planning Institute of Geographical Sciences and Natural resources Research， the Chinese Academy of Sciences， Beijing 100101， P.R. china information Consultative center， Institute of Macro-economy， National Planning Committee， Beijing 10082.， P. R. {2.

land-use change is an important part of global change research(IGBP,1990-1992..But the majority of researches focus on the natural dr iving force of land use *** thi s paper,the authors studied the rela tionship be-tween socio-economic driving facto rs and land-use change with time series in Hainan *** on the stud y for the evolution of administrative system and policies in Hainan Island and the comprehensive analysis on the socia l economy da-ta and changes of social policies,th e socio-economic policies,human activities and land use of Hainan can be divided into three periods with different ch aracters:period from195.to 1978ch aracterized by the planning economi c system,peri-od from 1978to 1988characterized by the transfer of economic system and a doption of open policy,new stage fro m 1988to 1998with high growing *** th e other hand the authors describe the character of the periods and land-use change process affected by socio-economic *** paper provides an important method for evaluating the development and changes of Hainan social economy dur ing the 5.years from 195.to 1999and f orecasting the development of Hainan so-cial economy in future.

关键词： socio-economic development land-use change planning economy refo rmand open-up economic sys-tem

降雨型滑坡预报中计算前期有效降雨量的一种新方法

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山地学报 2011年第1期29卷 81-86页

作者：李长江麻土华孙乐玲朱兴盛浙江省国土资源厅信息中心浙江省国土资源厅地质环境处

在许多地区,前期降雨条件对滑坡的发生有重大影响,前期有效降雨量是滑坡预报的一个重要参数。基于累积滑坡频度-降雨量分形关系导出了一种新的计算前期有效降雨量的方法。在这个方法中,降雨衰减系数是由给定区域内引发滑坡的累积降雨阀... 详细信息

在许多地区,前期降雨条件对滑坡的发生有重大影响,前期有效降雨量是滑坡预报的一个重要参数。基于累积滑坡频度-降雨量分形关系导出了一种新的计算前期有效降雨量的方法。在这个方法中,降雨衰减系数是由给定区域内引发滑坡的累积降雨阀值随观测时段天数变化的标度指数所决定,滑坡前每天降雨对总有效雨量的贡献并非是独立的,前i天降雨的衰减过程与前i-1天的降雨相关联。

关键词：降雨型滑坡预报前期降雨量有效降雨量分形

Spatiotemporal dynamics of reclamation and cultivation and its driving factors in parts of china during the last three centuries

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Progress in Natural Science:Materials International 2004年第7期 53-61+97页

作者： GE Quansheng 1, DAI Junhu 1*, HE Fanneng 1, ZHENG Jingyun 1, MAN Zhimin 2.and ZHAO Yun 2.1. Institute of Geographic Science and Natural resources Research, Chinese Academy of Sciences, Beijing 100101, china 2. {2. for Historical Geographic Studies, Fudan University, Shanghai 2.0433, china) Institute of Geographic Science and Natural resources Research Chinese Academy of Sciences Beijing 100101 China center for Historical Geographic Studies Fudan University Shanghai 200433 China

Different from other similar studies, in this paper, most of the data were excerpted from historical archives and documents, and were used to study the spatiotemporal dynamics of cultivated land resources in {2. during the last 300 years. It is clear that these data may help reveal land use change dynamics and its regional differences, but they may be problematic due to the constraints of the original data in the Ming Dynasty, Conversion of land Area for the purpose of collecting land taxes, and the deliberate or inadvertent omission of cultivated land area during land surveys, therefore, such data were adjusted to our need. In processing the data, we made great efforts to analyze the historical context of their sources and reduced the possible errors. The results show that the cultivated land area increased most quickly in the early Qing Dynasty, and slowed down after the middle Qing Dynasty, and then was stable in the late Qing Dynasty until 1949, and has been decreasing since then. It is also found that the cultivated land use varied greatly in different regions. The east of the country was cultivated much more heavily than the west, but in some western provinces cultivated land area increased more quickly. It is considered that the driving factors of such cultivated land area change include the increase of the population, the political issues, and the impacts of wars. Natural environmental factors and the introduction of new crops might also have affected the cultivated land use change in the past 300 years.

关键词： land use china last three centuries.

Soil Quality Assessment Using Weighted Fuzzy Association Rules

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Pedosphere 2010年第3期20卷 334-341页

作者： XUE Yue-Ju LIU Shu-Guang HU Yue-Ming YANG Jing-Feng South china Agricultural University Guangzhou 510642 (China) U.S. Geological Survey center for Earth resources Observation and Science Sioux Falls SD 57198 (USA) Geographic information Science center of Excellence South Dakota State University Brookings SD 57007 (USA)

Fuzzy association rules (FARs) can be powerful in assessing regional soil quality, a critical step prior to land planning and utilization; however, traditional FARs mined from soil quality database, ignoring the importance variability of the rules, can be redundant and far from optimal. In this study, we developed a method applying different weights to traditional FARs to improve accuracy of soil quality assessment. After the FARs for soil quality assessment were mined, redundant rules were eliminated according to whether the rules were significant or not in reducing the complexity of the soil quality assessment models and in improving the comprehensibility of FARs. The global weights, each representing the importance of a FAR in soil quality assessment, were then introduced and refined using a gradient descent optimization method. This method was applied to the assessment of soil resources conditions in Guangdong Province, {2.. The new approach had an accuracy of 87%, when 15.rules were mined, as compared with 76% from the traditional approach. The accuracy increased to 96% when 32.rules were mined, in contrast to 88% from the traditional approach. These results demonstrated an improved comprehensibility of FARs and a high accuracy of the proposed method.

关键词： accuracy comprehensibility global weights

land Use and Soil Organic Carbon in china’s Village landscapes

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Pedosphere 2010年第1期20卷 1-14页

作者： JIAO Jia-Guo YANG Lin-Zhang WU Jun-Xi WANG Hong-Qing LI Hui-Xin E. C. ELLIS Department of resources and Environmental Sciences Nanjing Agricultural University Nanjing210095 （China） Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China） Department of Agronomy and Agroecology China Agricultural University Beijing 100094 （China） Department of Geography ＆ Environmental Systems University of Maryland Baltimore County Baltimore 21250 （USA） center for Louisiana Inland Water Studies University of Louisiana at Lafayette Lafayette Louisiana （USA）

Village landscapes, which integrate small-scMe agriculture with housing, forestry, and a host of other land use practices, cover more than 2.million square kilometers across {2.. Village lands tend to be managed at very fine spatial scales （≤ 30 m）, with managers both adapting their practices to existing variation in soils and terrain （e.g., fertile plains vs. infertile slopes） and also altering soil fertility and even terrain by terracing, irrigation, fertilizing, and other land use practices. Relationships between fine-scale land management patterns and soil organic carbon （SOC） in the top 30 cm of village soils were studied by sampling soils within fine-scale landscape features using a regionally weighted landscape sampling design across five environmentally distinct sites in {2.. SOC stocks across {2.＇s village regions （5.Pg C in the top 30 cm of 2.×10^6 km^2. represent roughly 4% of the total SOC stocks in global croplands. Although macroclimate varied from temperate to tropical in this study, SOC density did not vary significantly with climate, though it was negatively correlated with regional mean elevation. The highest SOC densities within landscapes were found in agricultural lands, especially paddy, the lowest SOC densities were found in nonproductive lands, and forest lands tended toward moderate SOC densities. Bue to the high SOC densities of agricultural lands and their predominance in village landscapes, most village SOC was found in agricultural land, except in the tropical hilly region, where forestry accounted for about 45. of the SOC stocks. A surprisingly large portion of village SOC was associated with built structures and with the disturbed lands surrounding these structures, ranging from 〉 18% in the North {2. Plain to about 9% in the tropical hilly region. These results confirmed that local land use practices, combined with local and regional variation in terrain, were associated with most of the SOC variation within and across {2.＇s

关键词： agriculture land cover change land use change soil carbon sequestration spatial heterogeneity