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A technique on automatic land-use database reconstruction based on scanning land-use map

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Science China(Technological Sciences) 2006年第z2期49卷 57-63页

作者： LI Xiaojuan, GONG Huili, YIN Lianwang, SUN Yonghua, YANG Lingli & WANG Yanggang key laboratory of 3D Information Acquisition and Application, Ministry of Education,{2.,{2., China key laboratory of resource environment and gis of beijing,{2.,{2., China capital normal Univ Minist Educ Key Lab D Informat Acquisit & Applicat 3 Beijing 100037 Peoples R China capital normal Univ Key Lab Resource Environm Beijing 100037 Peoples R China capital normal Univ GIS Beijing Beijing 100037 Peoples R China

Although a land-cover database is very important to national land use including urban planning and land-use management, it is very laborious and time-consuming to build through digitization of paper land-use maps (1:10000) and data input by hand. Here we propose a new, high-level, automatic technique to build a land-use database, which has proved useful and practical in building a land-use database of Baotou City.

关键词： land-use map vectonzation automatic building of land-use database.

On multi-scale representations of geographic features

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Science China(Technological Sciences) 2006年第z2期49卷 39-47页

作者： WANG Yanhui, LI Xiaojuan & GONG Huili key laboratory of 3D Information Acquisition and Application, MOE,{2.,{2., China key Lab laboratory of resource environment and gis of beijing,{2.,{2., China capital normal Univ MOE Key Lab D Informat Acquisit & Applicat 3 Beijing 100037 Peoples R China capital normal Univ Key Lab Lab Resource Environm Beijing 100037 Peoples R China capital normal Univ GIS Beijing Beijing 100037 Peoples R China

This paper contains a review of the development of research on multiple representations compiled from Geographic Information Systems (gis), including data structure, formalization and storage, and intelligent zoom. A summary is also included of the problems of interconnectivity, consistency maintenance, dynamic query and coexisting updates, as well as a research review of multi-scale databases and related studies. Finally,research directions and foci are proposed for the future design and implementation of multi-scale gis.

关键词： multi-scale representation, multi-scale database, interconnectivity, consistency maintenance.

Web gis design and realization for groundwater resources in the Yellow River basin

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Science China(Technological Sciences) 2004年第z1期47卷 106-117页

作者： GAO Jianguo1,2. GONG Huili1,2. ZHAO Wenji1,2. ZHANG Xiaosong1 & YAN Ning2.1. resource, environment and {2. key {2. of beijing, capital normal university, beijing 10003., China 2. 3 Dimension Information Extraction and Application key {2. of Education Ministry, beijing 10003., China Correspondence should be addressed to Gong Huili Web {2. design and realization for groundwa- ter resources in the Yellow River basin GAO Jianguo1,2. GONG Huili1,2. ZHAO Wenji1,2. ZHANG Xiaosong1 & YAN Ning2.1. resource, environment and {2. key {2. of beijing, capital normal university, beijing 10003., China 2. 3 Dimension Information Extraction and Application key {2. of Education Ministry, beijing 10003., China capital normal Univ Resource Environm & GIS Key Lab Beijing Beijing 100037 Peoples R China 3 Dimens Informat Extract & Applicat Key Lab Educ Minist Beijing 100037 Peoples R China

This article brings forward a design and realization scheme of Web gis in the Yellow River basin for the management of groundwater resources. The main goals are to manage and share data of massive-scale, to support the research of groundwater resources in the Yellow River basin. In this paper we point out the necessity and feasibility of building the distributed Web gis for geographical research objects on a large scale. We put forward some solutions for the construction of this kind of system including a holistic deployment strategy in the Internet, a scheme of distributed data storage and management, a design of application structure based on three tires architecture by each province and how they collaborate with each other. It also illuminates how the application server works, and sets forth the relations among databases which work together in this system.

关键词： the Yellow River basin, groundwater, Web gis.

A study on determining the location of groundwater divide using a mathematical morphology method

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Science China(Technological Sciences) 2006年第z2期49卷 141-148页

作者： PAN Yun, GONG Huili, DUAN Fuzhou & HU Zhuowei key laboratory of 3D Information Acquisition and Application, Ministry of Education,{2.,{2., China key laboratory of resource environment and gis of beijing,{2.,{2., China capital normal Univ Minist Educ Key Lab D Informat Acquisit & Applicat 3 Beijing 100037 Peoples R China capital normal Univ Key Lab Resource Environm Beijing 100037 Peoples R China capital normal Univ GIS Beijing Beijing 100037 Peoples R China

Placement of a groundwater divide indicates sink areas and spatial distribution, knowledge of which helps in the mapping of regional aquifer properties and the management of groundwater resources. By applying mathematical morphology to a conceptual model of a watershed and characteristic erosion and dilation operations, this paper proposes a structuring element with which to extract the shape and location of groundwater divide. With due consideration to watershed linearity, a structuring element with three origins is designed to connect watershed points. After erosion, closing, and dilation operations, the groundwater divide is determined; the results indicate this method's feasibility and accuracy.

关键词： groundwater divide, mathematical morphology, structuring element.

Quantitative exploration of the mechanisms behind the urban thermal environment in beijing

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Progress in Natural Science:Materials International 2009年第12期19卷 1757-1763页

作者： Dan Meng,Xiaojuan Li~*,Wenji Zhao,Huili Gong key laboratory of 3D Information Acquisition and Application,Ministry of Education,key laboratory of {2.,environment and gis in beijing,College of {2.s environment and Tourism,capital normal {12.,beijing 100048,China [a]key laboratory of 3D Information Acquisition and Application Ministry of Education Key Laboratory of Resource Environment and GIS in Beijing College of Resources Environment and Tourism Capital Normal University Beijing 100048 China

The driving mechanism behind the formation of urban thermal environments is the result of a combination of *** was chosen as the study area,and the technique of principal component analysis(PCA) was used.A spatial regression method was also applied for quantitative explanation of the thermal *** Landsat thematic mapper images were used to quantify potential causing *** the eigenvalues of each factor and its relationship with land surface temperature,the first three principal components(PCs) are regarded as the main causative factors explaining the mechanism as independent *** first three PCs mainly reflect urban construction,road density and the normalized difference vegetation index(NDVI),*** least squares,spatial lag and spatial error regression models were established separately for the relationships between the first three PCs and land surface temperature(LST).In the two spatial regression models,z-statistics for both the spatial lag parameter(ρ) and spatial residual parameter(λ) are significant,indicating the necessity of using spatial regression to replace the OLS regression model,as well as indicating that the spatial error regression model is superior to the spatial lag regression ***,the normalized difference built-up index(NDBI) and road density are the most significant positive contributions to LST.

关键词： Urban thermal environment Drive mechanism Spatial regression beijing

Cloning, sequencing and expression of the coat protein gene of Cocksfoot mottle virus

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Progress in Natural Science:Materials International 2007年第2期17卷 222-225页

作者： DONG Zhi, GUO Xiaoyu, ZHANG Hailong and ZHANG Feiyun ( College of Life Science, capital normal university, beijing 10003., China College of {2.s environment and Tourism, capital normal university, beijing 10003., China beijing key laboratory for {2.s environment and Geography Information System, beijing 10003., China) [a]College of Life Science Capital Normal University Beijing China [b]College of resources environment and Tourism Capital Normal University Beijing China [c]beijing key {2. for {2.s environment and Geography Information System Beijing China

The coat protein (CP) gene of Cocksfoot mottle virus (CfMV) was amplified by RT-PCR and inserted into expression vector pGEX-4T-1, and the resulting plasmid was designated as pGEXCfMV-JANCP. The fusion protein GST-CP was expressed in BL2. (DE3) pLysS after IPTG induction. The results of SDS-PAGE and Western blot analysis showed that the CfMV-CP gene was efficiently expressed in E. coli BL2. (DE3) pLysS through IPTG induction and the 56.0 kD protein was obtained.

关键词： Cocksfoot mottle virus sequence analysis prokaryotic expression.

Test of magnetic susceptibility and grain-size age models of loess

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Progress in Natural Science:Materials International 2007年第11期17卷 1312-1317页

作者： Chen Yimeng1,2.3, Feng Zhaodong4 and Gong Huili1,2.1. MOE and key laboratory of {2.s {2. and gis of beijing, beijing 10003., China 2. key laboratory of 3D information Acquisition and Application, The capital normal university, beijing 10003., China 3. Department of Economics & Management of Huizhou university, Huizhou 516007, China 4. key laboratory of Western China’s {2.al Systems, Ministry of Education, Lanzhou university, Lanzhou 730000, China) MOE and key laboratory of {2.s {2. and gis of beijing Beijing 100037 China key laboratory of 3D information Acquisition and Application The Capital Normal University Beijing 100037 China Department of Economics & Management of Huizhou university Huizhou 516007 China key laboratory of Western China’s {2.al Systems Ministry of Education Lanzhou University Lanzhou 730000 China

Ages of the stratigraphic boundary MIS1/2.and MIS3/4 of the Yuanbu loess section in Linxia are used as the basis of the nodal control age. The age of MIS1/2.and MIS3/4 are obtained from the latest international research result—the climatic events recorded in the stalagmite in the Hulu Cave in Nanjing, that MIS1/2.is 11.5 kaB.P. and MIS3/4 is 59.8 kaB.P.. The ages of the two climatic events contain three nodal age control models (Model 1: 0 kaB.P.—59.8 kaB.P.; Model 2. 0 kaB.P.—11.5 kaB.P. and 11.5 kaB.P.—59.8 kaB.P.; Model 3: 11.5 kaB.P.—59.8 kaB.P.), which are used as the nodal control age separately. The deposition times of various stratigraphic horizons are calculated by using the magnetic susceptibility age model and grain-size age model, and then compared with each other. In addition, the AMS14C age, OSL age and the ages of YD and H events are compared with the ages of the corresponding horizons calculated by the three models of nodal control ages. From the analyses of lithologic characters and climatic stages it has been found that both the magnetic susceptibility age model and the grain-size age model have some defects. Because the accurate control ages are selected as the nodal points of the glacial period or interglacial period, the stratigraphic deposition times determined by the high resolution of magnetic susceptibility age model and grain-size age model approximate to the actual ages. As for the relative accuracy of the two age models, the magnetic susceptibility age model is more accurate than the grain-size age model.

关键词： loess nodal control age magnetic susceptibility age model grain-size age model test

Sediment transport capacity of hyperconcentrated flow

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Science China(Physics,Mechanics & Astronomy) 2008年第8期51卷 961-975页

作者： SHU AnPing1,2.& FEI XiangJun2.1 School of environment & key {2. of Water and Sediment Sciences,Ministry of Education,{2. normal university,{2. 100875,China 2.State key {2. of Hydroscience and Engineering,Tsinghua university,{2. 100084,China School of environment & key {2. of Water and Sediment Sciences Ministry of Education Beijing Normal University Beijing 100875 China State key laboratory of Hydroscience and Engineering Tsinghua University Beijing 100084 China

As one of the most important components of river mechanics,sediment transport capacity of sediment-laden flows has attracted much attention from many researchers working on river mechanics and hydraulic engineering. Based on the time-averaged equation for a turbulent energy equilibrium in solid and liquid two-phase flow,an expression for the efficiency coefficient of suspended load movement was derived for the two-dimensional,steady,uniform,fully-developed turbulent flow. A new structural expression of sediment transport capacity was achieved. Using 115 runs of flume experimental data,which were obtained through two kinds of sediment transport experiments in the state of equilibrium,in combination with the basic rheological and sediment transporting characteristics of hyperconcentrated flow,the main parameters in the structural expression of sediment transport capacity were calibrated,and a new formula of sediment transport capacity for hyperconcentrated flow was developed. A large amount of field data from the Yellow River,Wuding River,and Yangtze River,etc. were adopted to verify the new formula and good agreement was obtained. These results above contribute to an improved theoretical system of river mechanics and a reliable tool for management of rivers carrying high concentration of sediments.

关键词： hyperconcentrated flow turbulent energy equilibrium efficiency coefficient sediment transport capacity

Research on the damage of the Great Wall of Ming Dynasty in beijing by remote sensing

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Science China(Technological Sciences) 2008年第S1期51卷 195-202页

作者： LI XiaoJuan,GONG HuiLi,ZHANG Ou,ZHANG WeiGuang & SUN YongHua The key Lab of 3D Information Acquisition and Application,MOE,the key Lab of {2. resource Envi-ronment and gis,and College of resource environment & Tourism,capital normal university,{2. 10003.,China capital normal Univ Key Lab Informat Acquisit & Applicat MOE Key Lab Beijing Resource Environm Beijing 100037 Peoples R China

Using aerial photos and high resolution satellite images of the year of 2.04,this paper establishes remote sensing interpretation marks of the Great Wall of Ming Dynasty's damaged levels. Based on field survey and remote sensing survey in 1984,we analyzed present situation and changing characteristics being of the Great Wall of Ming Dynasty in beijing. The results show that about 7.02. of the wall is well-preserved (about 2.861 m); 31.5% of the wall is slightly or moderately dam-aged (about 115989 m); 61.5% of the wall is badly damaged (about 2.6379 m). This paper analyzes the dynamic change of the Great Wall of Ming Dynasty. It shows that the damaged situation of the Great Wall of Ming Dynasty in beijing is serious. From 1984 to 2.04,the well-preserved wall is decreased by 332.6 m (decreased by 56%); badly damaged wall increased by 512.7 m (increased by 67%). Finally,this paper analyzes the influence factors of damaging Great Wall. The conclusion is as follows: The damaged Great Wall is generally near the roads and villages,small slope,and easily arriving land.

关键词： the Great Wall of Ming Dynasty remote sensing interpreting damage dynamic change spatial analysis