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Ecological Footprint and Ecological Security Evaluation in the Upper Min River Basin

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Wuhan university Journal of Natural sciences 2005年第4期10卷 641-646页

作者： TU Jian-jun 1, 2.1. School of resources and Environment science, Southwest China Normal {2., {3. 400715, China 2. Institute of Mountain Hazards and Environment, Chinese Academy of sciences, Chengdu 610041, Sichuan, China Southwest China Normal university School of Resources and Environment Science Chongqing China (GRID:grid.263906.8) Chinese Academy of sciences Institute of Mountain Hazards and Environment Chengdu Sichuan China (GRID:grid.9227.e) (ISNI:***)

On the basis of the ecological footprint (EF) model, this paper studied theecological security in the Upper Min River Basin ecosystem. The result shows that with 2. 03. 2.hm^2.er capita ecological capacity (0. 42. 2.hm^2.higher than per capita EF) ,and 165 82. hm^2.ecologysurplus , the ecosystem in Upper Min River is generally secure at present. But the arable land isoverweighed and omens an eco-security crisis. Meanwhile, problems such as low forest coverage rate,severe loss of water and soil,enlargement of arid-valley area, frequent occurrence of mountainhazards and degradation of pastures have been major threats to the eco-security of this region. Thecalculation result of ten-thousand-yuan ( RMB) GDP shows that the use of natural resources isextensive, and there will be a rapid increase tendency of EF in the future. In order to maintain thepresent eco-security, the ways of use natural resources must be improved in the Upper Min RiverBasin.

关键词： ecological security ecological footprint ecological capacity quantitativeevaluation the Upper Min River Basin

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 GIS Key Laboratory of Beijing, Capital Normal university, Beijing 10003., China 2. 3.Dimension Information Extraction and Application Key Laboratory of Education Ministry, Beijing 10003., China Correspondence should be addressed to Gong Huili Web GIS 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 GIS Key Laboratory of Beijing, Capital Normal university, Beijing 10003., China 2. 3.Dimension Information Extraction and Application Key Laboratory 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.

Calculating soil moisture by remote sensing and analyzing hydrologic cycle process in the Yellow River basin

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science China(Technological sciences) 2004年第z1期47卷 1-13页

作者： YANG Shengtian1 & LIU Changming1, 2.1. School of environmental sciences, Beijing Normal {2., Beijing 100875, China 2. Institute of Geographic science and Natural resources Research, Beijing 100101, China Beijing Normal Univ Sch Environm Sci Beijing 100875 Peoples R China Inst Geog Sci & Nat resources Beijing 100101 Peoples R China

Based on the AVHRR pathfinder remote sensing data, soil moisture, precipitation and evaporation during the period of 1982.1998, soil moisture of all layers of soil-profile (0—1 m) in the Yellow River basin over the 17 years are calculated by the remote sensing model of calculating soil water. The Yellow River basin is divided into seven subcatchments as control sections at the location of six hydrologic stations (Lanzhou, Toudaoguai, Longmen, Sanmenxia, Huayuankou and Lijin). After calculating soil moisture and obtaining runoff data and precipitation data, the dynamical features of hydrological cycle in the Yellow River basin are analyzed for the period from 1982.to 1988 using water balance method. The conclusions are as follows: It is feasible to calculate the soil water on the macro-scale, in the soil profile with temporal continuity by means of remote sensing and survey in land. Some values of the key water cycle factors in the Yellow River are obtained, which include the annual precipitation of 4000 km3. the evapotranspiration of 3.00-3.00 km3. and the soil moisture transformation of ?500- 500 km3. Consequently, we analyzed the process of the water cycle in the Yellow River over the 17 years, and the results show that the segment upstream of Lanzhou city is a relatively humid region, and the area of internal waters and the reaches of Shanshan is the most desiccated region. Therefore, the runoff in the depth process is intensive and the runoff-generating process is weak in more arid regions.

关键词： the Yellow River, soil moisture, remote sensing, hydrologic cycle.

盾构隧洞斜螺栓接头在不均匀沉降作用下的受力分析

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水利水电技术(中英文) 2024年

作者：刘闯齐慧君杰德尔别克·马迪尼叶提 1.国电南京自动化股份有限公司 2.河海大学水利水电学院 3.新疆农业大学水利与土木工程学院新疆农业大学水利与土木工程学院国电南京自动化股份有限公司河海大学水利水电学院

With the construction of water transfer projects， shield tunnels have been widely used. Long distance water transfer tunnels inevitably traverse sections of poor geology and potential uneven settlement may occur in shield tunnels under non-uniform geology. As the main load-bearing structure， the current assembled outer lining mainly uses diagonal bolted joints. A reasonable modelling of the diagonal bolted joints and an analysis of their mechanical behavior under uneven settlement is of great importance for the analysis of the longitudinal stability of tunnels. In this paper， the mechanical performance of inclined bolted joints under the action of external forces is investigated. The distribution of axial force and bending moment of the inclined bolts under different operating conditions is studied， the bolts are simulated using the generalized displacement method of buried beams， and a numerical simulation method is established considering the interpolation of the corner displacement. By comparing the finite element analysis results with the test results， it is concluded that the interpolation of the corner displacement of the bolt has a significant influence on the numerical simulation， and it will generate a certain bending stress under uneven settlement， which provides a reference for engineering design.

关键词：盾构隧洞不均匀沉降装配式外衬斜螺栓受力分析

Indian Ocean-MORB-type isotopic signature of Yushigou ophiolite in North Qilian Mountains and its implications

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science China Earth sciences 2006年第6期49卷 561-572页

作者： HOU Qingye1,2. ZHAO Zhidan1,2. ZHANG Hongfei3. ZHANG Benren3.& CHEN Yuelong2.1. State Key Laboratory of Geological Processes and Mineral {3., China university of Geo{2.s, Beijing 100083. China 2. School of Earth {2. and Mineral {3., China university of Geo{2.s, Beijing 100083. China 3. Faculty of Earth {2.s, China university of Geo{2.s, Wuhan 43.074, China 1. State Key Laboratory of Geological Processes and Mineral resources China University of Geosciences Beijing 100083 China 2. School of Earth science and Mineral resources China University of Geosciences Beijing 100083 China 3. Faculty of Earth sciences China University of Geosciences Wuhan 430074 China

In order to explore the disputed issue concerning the tectonic affinity ofthe ancient ocean mantle of North Qilian Mountains (NQM), geochemical and Sr, Nd, Pb isotopiccompositions of pillow basalts of the Yushigou Ophiolite (YSGO) suite from NQM have been analyzedsystematically. The pillow basalts exhibit tholeiitic characteristics, with flatchondrite-normalized REE patterns ((La/Yb)_N = 0.98—1.2.). They display no Nb, Ta, Zr, Hf negativeanomalies, and show MORB features in 2.b-Zr/4-Y and Ti/100-Zr-YX3.tectonic discrimination *** results indicate that the Yushigou ophiolite is most likely to be formed in a mid-ocean ridgeor mature back-arc basin. Their isotopic data show a relatively broad and enriched ^(87)Sr/^(86)Sr(0.70509 — 0.70700), restricted ^(143.Nd/^(144)Nd (0.512.55-0.512.78). Pb isotopes are in the rangeof ^(2.6)Pb/^(2.4)Pb (18.054-2..562., ^(2.7)Pb/^(2.4)Pb (15.53.-15.743. and ^(2.8)Pb/^(2.4)Pb(3..068-3..53.). These isotopic data imply that the basalts originated from the depleted mantle(DMM), with the involvement of enriched mantle components (mainly EMII). Geochemical comparisonsbetween the basalts in YSGO and the MORB-type basalts of ophiolite suites occurring in the knownancient Tethyan tectonic domain indicate that the ancient oceanic mantle represented by YSGO suiteforming in early Paleozoic in the North Qilian Moutains is very similar to the Tethyan mantle inboth trace elements and isotopic compositions. The North Qilian Mountains should be a part of theTethyan tectonic domain in early Paleozoic. This further implies that the Tethyan tectonic domaincan be deduced to early Paleozoic in the study area, which will be helpful to discussing thetectonic affinity and evolution of the North Qilian Mountains.

关键词： geochemistry, Indian Ocean-MORB-type isotopic signatures, Tethyan tectonic domain, Yushigou ophiolite, North Qilian Mountains.

Subsidence control and farmland conservation by solid backfilling mining technology

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中国有色金属学会会刊：英文版 2011年第S3期21卷 665-669页

作者： GUO Guang-li1, 2. FENG Wen-kai3. ZHA Jian-feng1, 2. 3. LIU Yuan-xu1, 2. WANG Qiang1, 2.1. Key Laboratory for Land Environment and Disaster Monitoring of the State Bureau of Surveying and Mapping, China university of Mining and Technology, Xuzhou 2.1116, China 2. Jiangsu Key Laboratory of resources and {2. Information Engineering, China university of Mining and Technology, Xuzhou 2.1116, China 3. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu university of Technology, Chengdu 610059, China [a] Key Laboratory for Land Environment and Disaster Monitoring of the State Bureau of Surveying and Mapping China University of Mining and Technology Xuzhou 221116 China [b] Jiangsu Key Laboratory of resources and environmental Information Engineering China University of Mining and Technology Xuzhou 221116 China [c] State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu 610059 China

Solid backfilling mining technology, which decreases the height of fissure zone and caving zone, and alleviates the subsidence, is a new technology for farmland conservation. Based on the situation analysis of farmland destruction in mining area, three ways for farmland protection were proposed. In order to improve the feasibility of this technology, the limited filling materials should be used to increase resources recovery ratio, and then the surplus materials could be backfilled into goaf. An index, namely farmland conservation ability, was put forward to optimize the ways for farmland conservation. At last, the Wanbei coal mine was taken as a case for farmland conservation. It was shown that 3.1}0 t dull coal was substituted and 52.hm2.farmland was conserved by solid backfilling mining in this coal mine.

关键词： solid backfilling farmland conservation mining subsidence equivalent mining height

Allocation of power generating and shipping of Hanjiang upstream cascade

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Progress in Natural science:Materials International 2005年第8期15卷 733-741页

作者： LIU Junping1* and CHANG Mingqi 2.3.1. School of Civil Engineering and Architecture, Zhejiang university of Technology, Hangzhou 3.0014, China 2. Institute of Water {3. & Hydroelectric Engineering, Xi'an university of Technology, Xi'an 710048, China 3. Shanxi Institute of Water {3., Taiyuan 03.001, China) School of Civil Engineering and Architecture Zhejiang University of Technology Hangzhou 310014 China Institute of Water resources and Hydroelectric Engineering Xi'an University of Technology Xi'an 710048 China Shanxi Institute of Water resources Taiyuan 030001 China

The optimal model and simulating model of the Hanjiang cascade reservoirs operation with one day as its calculating period are established to coordinate the contradictions between power generating and shipping. The optimal model is solved by progressive optimality algorithm method adopting the theory of large system decomposing and coordinating. By analyzing the water allocation results obtained from six schemes, which are two cascades, four cascades and seven cascades joint operation considering shipping or not, the contradiction degree between power generating and shipping is investigated and some joint operation schemes are proposed.

关键词： cascade power generating contradiction shipping optimal operation.

An ideal interval method of multi-objective decision-making for comprehensive assessment of water resources renewability

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science China(Technological sciences) 2004年第z1期47卷 42-50页

作者： YANG Xiaohua1, YANG Zhifeng1,2. SHEN Zhenyao1 & LI Jianqiang3.1. School of Environment, State Key Laboratory of Water Environment Simulation, Beijing Normal Univer- sity, Beijing 100875, China 2. School of Environment, Key Laboratory for Water and Sediment sciences of Ministry of Education, Beijing Normal {3., Beijing 100875, China 3. Water {2. and Hydropower Planning and Design General Institute, MWR, Beijing 100011, China Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China Beijing Normal Univ Sch Environm Key Lab Water & Sediment Sci Minist Educ Beijing 100875 Peoples R China MWR Water Resources & Hydropower Planning & Design Ge Beijing 100011 Peoples R China

In order to estimate water resources renewability scientifically, an Ideal Interval Method of Multiple Objective Decision-Making (IIMMODM) is presented. This method is developed through improving an ideal point method of multiple objective decision-making. The ideal interval is obtained with assessment standard instead of ideal points. The weights are decided by using the basic point and gray code accelerating genetic algorithm. This method has synthesized the expert’s suggestion and avoided giving a mark for the objective again. It could solve the complicated problem of compatible or incompatible multi-objective assessment. The principle of IIMMODM is presented in this paper. It is used to assess the water resources renewability for nine administrative divisions in the Yellow River basin. The result shows that the water resources renewability in the Yellow River basin is very low. Compared with the gray associate analysis method, fuzzy synthesis method and genetic projection pursuit method, the IIMMODM is easier to use. Compared with the ideal point method of multiple objective decision-making, the IIMMODM has good robustness, which is applicable to the comprehensive assessments of water resources.

关键词： water resources renewability, comprehensive assessment, multiple objective decision-making,ideal interval, Yellow River basin.

Key technology of mine underground mobile positioning based on LiDAR and coded sequence pattern

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中国有色金属学会会刊：英文版 2011年第S3期21卷 570-576页

作者： WANG Zhi1, 2. WU Li-xin1, 2. LI Hui-ying3.1. College of resources and Civil Engineering, Northeastern {3., Shenyang 110004, China 2. Academy of Disaster Reduction and Emergency Management, Ministry of Civil Affairs and Ministry of Education, Beijing Normal {3., Beijing 100875, China 3. College of Computer {3. and Technology, Jilin {3., Changchun 13.012. China [a] College of resources and Civil Engineering Northeastern University Shenyang 110004 China [b] Academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs and Ministry of Education Beijing Normal University Beijing 100875 China [c] College of Computer science and Technology Jilin University Changchun 130012 China

Technologies of underground mobile positioning were proposed based on LiDAR data and coded sequence pattern landmarks for mine shafts and tunnels environment to meet the needs of fast and accurate positioning and navigation of equipments in the mine underground without satellite navigation signals. A coded sequence pattern was employed for automatic matching of 3. scans. The methods of SIFT feature, Otsu segmentation and fast hough transformation were described for the identification, positioning and interpretation of the coded sequence patterns, respectively. The POSIT model was presented for speeding up computation of the translation and rotation parameters of LiDAR point data, so as to achieve automatic 3. mapping of mine shafts and tunnels. The moving positioning experiment was applied to evaluating the accuracy of proposed pose estimation method from LiDAR scans and coded sequence pattern landmarks acquired in an indoor environment. The performance was evaluated using ground truth data of the indoor setting so as to measure derivations with six degrees of freedom.

关键词： LiDAR coded sequence pattern mobile positioning SLAM algorithm POSIT algorithm