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Science china earth sciences 2004年第10期47卷 886-895页

作者： TANG Liangjie1,2, JIA Chengzao3, PI Xuejun4, CHEN Suping1,2, WANG Zhiyu5, XIE Huiwen4 1. Key Laboratory for Hydrocarbon Accumulation of Education Ministry, beijing 102249, china 2. Basin & Reservoir Research center, University of Petroleum, beijing 102249, china 3. Petrochina Company Limited, beijing 100011, china 4. Tarim Oilfield Company, Petrochina Company Ltd., Kurle 841000, china 5. Department of Geology, University of Petroleum, beijing 102249, china 1. Key Laboratory for Hydrocarbon Accumulation of Education Ministry 102249 Beijing China 2. Basin & Reservoir Research center University of Petroleum 102249 Beijing China 3. Petrochina Company Limited 100011 Beijing China 4. Tarim Oilfield Company PetroChina Company Ltd. 841000 Kurle China 5. Department of Geology University of Petroleum 102249 Beijing China

The salt beds of Lower Tertiary developed in the mid-segment of Kuqa foreland fold belt, northern Tarim basin. They considerably controlled structural deformation of the belt. Ac- cording to the field observation, seismic profile interpretation and drilling data, three different structural styles of supra-salt, intra-salt and sub-salt occurred in the Kuqa foreland fold belt. Su- pra-salt structural styles mainly include thrust faults and fault-related sags. Intra-slat structural styles essentially are salt-pillows, intra-salt faults and folds, and salt weld structures. Sub-salt structural styles mainly consist of imbricated thrust faults, duplex structures, pop-up and fault-related folds. It is indicated that great differences exist among supra-salt, intra-salt and sub-salt structures of Kuqa foreland fold belt. The salt-related structures were formed in the same structural stress field. The dynamic mechanism of the salt-related structures is mainly associated with gravitation, compression and plastic flow of salt beds.

关键词： salt-related structural style, supra-salt structure, intra-salt structure, sub-salt structure, Kuga foreland fold belt.

Research on the dry intrusion accompanying the low vortex precipitation

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Science china earth sciences 2007年第9期50卷 1396-1408页

By employing the 6.7μm satellite vapor cloud images and NCEP/NCAR 1°×1° reanalysis datasets, the characteristics and mechanism of the dry intrusion, as well as its impacts on the low vortex precipita- tion at the Meiyu front are explored in this paper. It is found that the formation,development and main- tenance of the low vortex precipitation at the Meiyu front are closely related to the evolution of the dry intrusion. The dry intrusion is characterized by high potential vorticity (PV), low humidity and cold air. The dry intrusion exhibits as an obvious dark zone on vapor cloud images, an area in which atmos- pheric relative humidity is lower than 60%. However, the features of the dry intrusion on the vapor im- ages are clearer than that of the humidity field, for the former is the digital vapor cloud images with high temporal and spatial resolution, and it can be used to explore the finer characteristics of the develop- ment, evolution and supplement of the intrusion during the development of the low vortex. The dry intrusion impacts accompanying the low vortex precipitation at the Meiyu front come from all levels of the troposphere, with the strongest intrusion located at the upper troposphere. The dry and cold air intrudes the vicinity of the low vortex from the upper isentropic surface to the lower one, slanting eastward from lower to higher level. The low vortex precipitation region is usually situated in front of the dry intrusion where the relative humidity gradient is higher. The research also reveals that the mechanism of the dry intrusion is that the high potential vorticity descends from the upper troposphere to the lower level, therefore, the dry intrusion can be used as an important index of the high PV forcing. To the west of the low vortex precipitation, the upper level northerlies descend across the isentropic surface, then the dry cold advection can trigger the instable development in the mid-low troposphere. The dry intrusion enhances the low vort

关键词： Meiyu front, low vortex precipitation, dry intrusion, mechanisim, vapor image, potential vorticity, relative humidity

Complex sources of air-soil-water pollution processes in the Miyun reservoir region

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Science china earth sciences 2005年第z2期48卷 230-245页

作者： YANG Dongzhen, XU Xiangde, LIU Xiaoduan, XU Qing, DING Guoan, CHENG Xinghong, CHEN Huailiang, ZHOU Huaigang, WANG Zhenfa, WANG Wenyan Key Laboratory of Atmospheric Chemistry, center for Atmosphere Watch and Services, chinese academy of Meteorological sciences, CMA, beijing 100081, china Key Laboratory of Meteorological Disasters, CAMS, beijing 100081, china National center for Geological Testing, beijing 100037, china Meteorological Bureau of Henan Province, Zhenzhou 450000, china Shangdianzi Background Atmospheric Pollution observation Station, Miyun County, beijing 101507, china Key Laboratory of Atmospheric Chemistry Center for Atmosphere Watch and Services Chinese Academy of Meteorological Sciences CMA Beijing 100081 China Key Laboratory of Meteorological Disasters CAMS Beijing 100081 China National center for Geological Testing Beijing 100037 China Meteorological Bureau of Henan Province Zhenzhou 450000 China Shangdianzi Background Atmospheric Pollution observation Station Miyun County Beijing 101507 China

The comprehensive impact of atmospheric dry deposition and wet deposition and the pollution sources of farmlands, mining areas, and towns along the Baihe River on the water quality of Miyun reservoir is investigated from the angle of the complex sources of air-soil-water pollution processes, in the context of the 1990-2001 precipitation chemical data at Shangdianzi station-a WMO regional background air pollution monitoring station 15 km far from the Miyun reservoir, in conjunction with the atmospheric dry deposition and wet deposition data of the 2002 -2003 beijing City Air Pollution observation Field Experiment (BECAPEX). Analysis results suggest that the major ions in precipitation in the Miyun reservoir region in this period were SO 42-, NO 3-, NH4+ and Ca2+; wet acid deposition quantity of Miyun reservoir in the summer half year (April to September) was greater than the quantity in the winter half year (October to March), and the annual wet acid deposition in the reservoir exhibited a rising trend with the mean 1038.45 t, the maximum 1766.31 t occurred in 1996, and the minimum 604.02 t in 1994; the long-term averaged pH of atmospheric precipitation in the Miyun reservoir region was 5.20, i.e. weakly acidic, and the interannual variation of pH values displayed a falling trend. pH values of water body at various depths in the Miyun reservoir were all greater than 7.0, but they exhibited vertical and horizontal nonhomogeneity, and at the same region pH decreased vertically with depth; the 2002 and 2003 annual dustfalls in the Miyun reservoir were 13513.08 t and 3577.64 t, respectively, and the spring dustfall was the number one in a year, accounting for the 61.91% and 44.56% of the annual totals of 2002 and 2003, respectively. Because the atmospheric dry deposition and wet depositions contain multiple types heavy metal elements and harmful elements, they to some extent exacerbated the eutrophication, acidification and potential heavy metal pollution of the reservoi

关键词： Miyun reservoir, water quality, Shangdianzi regional background air pollution observation station, atmospheric dry deposition/wet deposition, water system pollution.

基于粗糙集理论的工矿废弃地复垦利用实施效果评价模型及应用

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中国矿业 2016年第S1期25卷 249-254页

作者：张立平叶回春周妍兴安黄元仿张红艳中国农业大学资源与环境学院北京100193 农业部华北耕地保育重点实验室北京100193 国土资源部农用地质量与监控重点实验室北京100035 中国科学院遥感与数字地球研究所数字地球重点实验室北京100094 海南省地球观测重点实验室海南三亚572029 国土资源部土地整治中心北京100035 中国农业大学理学院北京100193

工矿废弃地复垦利用实施效果评价对于量化各试点省份工作效果以及加强工矿废弃地复垦监管具有重要意义。本文构建了工矿废弃地复垦利用实施效果评价指标体系,并利用粗糙集理论知识约简和相对正域理论在消除冗余信息和处理不确定性信息... 详细信息

工矿废弃地复垦利用实施效果评价对于量化各试点省份工作效果以及加强工矿废弃地复垦监管具有重要意义。本文构建了工矿废弃地复垦利用实施效果评价指标体系,并利用粗糙集理论知识约简和相对正域理论在消除冗余信息和处理不确定性信息等方面的优势,从而进一步确定了评价指标体系中各准则层的权重。结果表明:以湖北、江苏等12个省份的工矿废弃地复垦利用试点效果评价为例,对上述赋权思路进行实例分析,对比传统特尔斐法和粗糙集理论赋权结果发现,特尔斐法确定的专项规划审批(C_1)、复垦项目实施进展(C_2)、建新审批(C_3)、制度建设(C_4)、技术规范制定与实行(C_5)和信息化管理(C_6)的6个准则层指标权重分别为0.180、0.360、0.060、0.210、0.090和0.100,而粗糙集理论确定的C_1-C_6这6个准则层指标权重分别为0.143、0.190、0.095、0.190、0.191和0.191,其中,C_1、C_2和C_4权重下降,C_3、C_5和C_5权重上升。因而,粗糙集理论在工矿废弃地复垦利用实施效果评价中的具体赋权思路基本是可行的,可为工矿废弃地相关领域的评价提供参考和借鉴。

关键词：工矿废弃地复垦利用实施效果评价粗糙集理论权重确定

Comments on scaling effect of reciprocity in BRDF study

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Progress in Natural Science:Materials International 2004年第3期 95-96页

作者： ZHAO Hongrui* and WANG Jindi(Research center for Remote Sensing and GIS, Department of Geography, beijing Normal University, beijing Key Laboratory for Remote Sensing of Environment and digital Cities, beijing 100875, china) ResearchcenterforRemoteSensingandGIS DepartmentofGeographyBeijingNormalUniversityBeijingKeyLaboratoryforRemoteSensingofEnvironmentandDigitalCitiesBeijing100875China

Reciprocity principle is a common theory in electromagnetics and optics. It is also one of the general principles of the radiation transformation theory. However, in many remote sensing studies, this principle cannot be always supported by experimental data, especially when the scaling effect of the remote sensing image pixel is considered. The debate over the issue of whether the reciprocity principle can be used as a fundamental standard in evaluating the effectiveness of remote sensing observations has lasted for years. Using geometrical optics model, Li and Wan proved the existence of the scaling effect in applying the reciprocity principle to a remote sensing image pixel in 1998. In 2002, Snyder challenged Li’s proof, and attempted to prove that reciprocity principle is universally valid without any scale limitation. In this paper, we will argue with Snyder’s theory and point out that Snyder’s theory had neglected an important condition used in Li’s proof and, as a result, drawn the wrong conclusion. Here we will restate Li’s condition in his demonstration and offer a further proof to verify that reciprocity principle cannot be applied unconditionally to the study of bi directional reflectance distribution function (BRDF) of land surfaces in field or satellite remote sensing observation scale.

关键词： BRDF reciprocity scaling effect.

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构建数字城市的元数据服务体系

计算机科学 2003年第8期30卷 85-87,107页

作者：王浒李琦董宝青李浩川北京大学遥感与GIS研究所数字地球工作室北京100871 北京市信息资源管理中心北京100088 国家信息中心北京100053

Metadata is one of the six key technologies of digital earth,which is also an important aspect in buildingand implementing the digital City. Based on the technologies and standards of Web Services ,the author came up witha metadata services architecture in the distributed heterogeneous network environment of digital City. In this paper,the metadata services architecture is described and explained in detail,including the related standards,technologies,that,based on the Web service,to build the metadata service architecture will be practically meaningful for organizing,managing and sharing the information resources in digital City.

关键词：数字城市元数据服务体系城市可持续发展标准化

A major reorganization of Asian climate by the early Miocene

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A major reorganization of Asian climate by the early Miocene

中国科学院地质与地球物理研究所2008学术年会

作者： Z.T.Guo~1,B.Sun~(1,2),Z.S.Zhang~(1,3),S.Z.Peng~1,G.Q.Xiao~4,J.Y.Ge~4,Q.Z.Hao~1,Y.S.Qiao~1,M.Y.Liang~1, J.F.Liu~1,Q.Z.Yin~1,and J.J.Wei~1 1 Key Laboratory of Cenozoic Geology and Environment,Institute of Geology and Geophysics,chinese academy of sciences,P.O.Box 9825,beijing,100029,china 2 Shandong Institute and Laboratory of Geological sciences,Jinan,250013,china 3 Nansen-Zhu International Research center,Institute of Atmospheric Physics,chinese academy of sciences,beijing, 100029,china 4 State Key Laboratory of Loess and Quaternary Geology,Institute of earth Environment,chinese academy of sciences,P.O. Box 17,Xian,710075,china

The global climate system experienced a series of drastic changes during the *** Asia,these include the climate transformation from a zonal pattern to a monsoon-dominated pattern,the disappearance of typical subtropical aridity,and the onset of inland *** major advances in the last two decades in characterizing and understanding these climate phenomena,disagreements persist relative to the timing,behaviors and underlying causes. This paper addresses these issues mainly based on two lines of ***,we compiled newly collected data from geological indicators of the Cenozoic environment in china as paleoenvironmental maps of ten *** confirming the earlier observation that a zonal climate pattern was transformed into a monsoonal one,the maps within the Miocene indicate that this change was achieved by the early Miocene,roughly consistent with the onset of loess deposition in *** a monsoon-like regime would have existed in the Eocene,it was restricted to tropical-subtropical *** latitudinal oscillations of the climate zones during the Paleogene are likely attributable to the imbalance in evolution of polar ice-sheets between the two hemispheres. Secondly,we examine the relevant depositional and soil forming processes of the Miocene loess-soil sequences to determine the circulation characteristics with emphasis on the early *** eolian deposition in the middle reaches of the Yellow River since the early Miocene firmly indicates the formation of inland deserts,which have been constantly maintained during the past 22 ***- size gradients between loess sections indicate northerly dust-carrying winds from northern sources,a clear indication of an Asian winter monsoon ***,welldeveloped Luvisols show evidence that moisture from the oceans reached northern *** evidence shows the coexistence of two kinds of circulations,one from the ocean carrying moisture and another from the inland des

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Using hyperspectral indices to estimate foliar chlorophyll a concentrations of winter wheat under yellow rust stress

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Using hyperspectral indices to estimate foliar chlorophyll a...

The First International Conference on Computers and Computing Technologies in Agriculture

作者： LI JING~(1,2) JIANG JINBAO~1 CHEN YUNHAO~(1,2,*) WANG YUANYUAN~1 SU WEI~3 HUANG WENJIANG~4 1 College of Resources Science and Technology beijing Normal University No.19 Xinjiekouwai Street beijing 100875,china 2 State Key Laboratory of earth Surface Processes and Resource Ecology beijing Normal University No.19 Xinjiekouwai Street beijing 100875,china 3 College of Information & Electrical Engineering china Agricultural University beijing 100083,china 4 National Engineering Research center for Information Technology in Agriculture beijing 100089,china

The canopy hyperspectral reflectance of winter wheat infected with yellow rust at different levels of severity were measured by an ASD FieldSpec Pro FR spectrometer in the field and the concentrations of chlorophyll a(Chl a) in the leaves corresponding to the spectra were determined by biochemical methods in the *** analyses were made between Chl a concentrations and canopy hyperspectral data of diseased wheat. Results show that foliar Chl a concentrations are strongly correlated with canopy spectrum in the visible region and the first-order derivative spectrum in blue edge,green edge,and red *** and nonlinear models for estimating Chl a concentrations of the diseased wheat were built based on several spectral *** indicate that SDr/SDg,in which SDr and SDg are the sums of the first derivative within red and green edges,outperformed the other indices in predicting Chl a *** relative estimation errors for Chl a for 12 unseen samples are 17.5%.It is concluded that derivative spectra in red edge and green edge have strong prediction power for foliar Chl a concentrations of diseased winter *** hyperspectral remote sensing data to monitor crop disease and nutrition status is very promising.

关键词： chlorophyllα estimation models hyperspectral wheat yellow rust stress

Ecological Instream Flow Requirements Calculation of Pihe River by Montana Methodology in Sichuan Basin,china

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Ecological Instream Flow Requirements Calculation of Pihe Ri...

2007中国科协年会

作者： W.Ouyang~(1,2) F.H.Hao~1 H.Chen~1 X.Wang~1 S.T.Yang~3 1.School of Environment,State Key Laboratory of Water Environment Simulation,2.beijing Normal University 2.International Institute for Geo-Information Science and earth observation(ITC),Netherlands 3.State Key Laboratory of Remote Sensing Science,beijing Key Laboratory for Remote Sensing of Environment and digital Cities,School of Geography,beijing Normal University

With the rapid economic developments in china,the future water resource developments should be sustainable and that a component of the natural flow of rivers should be reserved to ensure diverse ecological *** last 15 years,ecological instream flow requirements(EIFR)research of river was one of the main and hot fields for eco-hydrology *** this paper,we summarized the research advance of eco-hydrology and also,the conception of the EIFR was also followed and *** ecological instream flow has three main functions:maintain the water ecological environments,dilute pollutants and *** coordinate with the water resource allocation,we evaluated EIFR of Pihe River section in every 12 month of three typical years (1968,1986 and 1987).Pihe River is one of the main waterr sources for the cities in Sichuan Basin and locates in the lower beach of famous Doujiang *** Montana methodology was widely applied in water requirements estimate and proved *** on natural characters of Pihe River,minimum and optimum water requirement of aquatic habitat for the river maintenance were *** water requirement of Pihe River was computed too,which is related with the width of water surface,the river length and evaporation depth. Considering the water quality goal,diluting pollutant water requirement was taken into *** the EIFR of the river of 12 month were ultimateS,*** them,that was 20.64m/s and the minimum eco-environmental water requirement of the river was 25.84m/s.

关键词： Eco-environmental water requirements Water resource allocation Water quality goal Pollutant dilute water requirement