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Lithosphere types in North china:Evidence from geology and geophysics

Science china Earth Sciences 2005年第11期48卷 1809-1827页

作者： QIU Ruizhao1,2, DENG Jinfu3, ZHOU Su3, LI Jinfa4, XIAO Qinghui1,5. WU Zongxu6 & LIU Cui3 1. Institute of Geology, Chinese Academy of Geological Sciences, beijing 100037, china 2. Development and Research center, china Geological Survey, beijing 100037, china 3. china University of Geosciences, beijing 100083, china 4. china University of Geosciences, Wuhan 430074, china 5. information center of ministry of land and resources, beijing 100812. china 6. Institute of Geology, State Seismological Bureau, beijing 100029, china Institute of Geology Chinese Academy of Geological Sciences Beijing China Development and Research center China Geological Survey Beijing China china University of Geosciences Beijing China china University of Geosciences Wuhan China information center of ministry of land and resources Beijing China Institute of Geology State Seismological Bureau Beijing China

On the basis of the characteristics of geology and geophysics in North china, three types of lithosphere, namely, the cratonic, the orogenic and the rift lithospheres can be classified. In terms of petrological method (based on the information from Precambrian rock assemblages, igneous activities, deep-seated enclaves, etc.) and the relationship between seismic velocity and rock compositions, the crust-mantle petrological and chemical structure models can be set up. Researching results indicate that the geology and geophysics of North china platform bears the similar characteristics in comparison with those of the global typical cratons. The Eerduosi(Ordos) block located in the west of the North china Platform is a remnant of cratonic lithosphere after the North china platform had undergone “activation” in Mesozoic and “reconstruction” in Cenozoic times. The continental crust consists mainly of TTG rock assemblage while the subcontinental lithosphere mantle mainly consists of strongly depleted harzburgite. The craton was finally formed in late Archaean and early Proterozoic, and has been kept in stability up to present; its crustal-mantle petrological structures of lithosphere can be set up as a reference for the study of North china craton and even Sino-Korean craton. In the Mesozoic period, the middle and east areas of North china platform were activated in the Yanshanian orogenic process, the continental crust was reformed by material and heat-transfer of convective mantle and the original crustal TTG component was reconstructed to be granitic crust, and the subcontinental lithosphere man- tle was replaced by the Yanshanian harzburgite-lherzolite. The Yanshan-Taihang Mountains were the remnants of orogenic lithosphere after the rifting in eastern North china in Cenozoic. The present thickness of continental crust and lithosphere in the Yanshan-Taihang Mountains is not equal to their thickness during the Yanshanian orogenic movement because they had undergone the

关键词： lithospheric types,evidence of geology and geophysics,crust-mantle petrological structure,deep process

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Age of Yingfeng rapakivi granite pluton on the north flank of Qaidam and its geological significance

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Science china Earth Sciences 2004年第4期47卷 357-365页

作者： XIAO Qinghui1,2, LU Xinxiang1,3, WANG Fei4, SUN Yangui5. WEI Xiangdong3 & XING Zuoyun6 1. Division of Granite Geology, china Geological Survey, Yichang 443003, china 2. information center of ministry of {5. and resources, beijing 100812. china 3. Geological Survey of Henan Province and Institute of Geological Research of Henan Province, Zhengzhou 45.05., china 4. Geological Institute, china Seismological Bureau, beijing 100029, china 5. Geological Survey Institute of Qinghai Province, Xining 810032, china 6. china University of Geosciences, Wuhan 430074, china Division of Granite Geology China Geological Survey Yichang China information center of ministry of land and resources Beijing China Geological Survey of Henan Province and Institute of Geological Research of Henan Province Zhengzhou China Geological Institute China Seismological Bureau Beijing China Geological Survey Institute of Qinghai Province Xining China china University of Geosciences Wuhan China

The Yingfeng rapakivi granite on the north flank of Qaidam is a newly discovered Proterozoic rapakivi pluton in china, which was found after the discovery of Shachang rapakivi in Miyun County, beijing and Kuandian rapakivi in Jilin Province. Yingfeng rapakivi pluton is ex-posed on the north side of the suture belt between Qinling-Kunlun orogenic belt and North china plate. U-Pb zircon isotopic dating and Ar-Ar isotopic dating of both hornblende and K-feldspar from the Yingfeng rapakivi granite have been conducted. The results show that the age of (1776±33)Ma at the upper intercept in Concorde diagram represents the age of formation of the plu-ton, whereas the age of (5.6 281) Ma at the lower intercept and Ar-Ar mineral dating of horn-blende and K-feldspar correspond to the age of a later event affecting the pluton, suggesting that Yingfeng pluton has ever been affected by strong regional Caledonian-Hercynian tectonic movement after its formation. The discovery of middle Proterozoic Yingfeng rapakivi granite pro-vides a petrologic evidence for the timing of cratonization of both the continental crust basement in western china and the basement of the North china plate and for a rifting event taking place in the mid-Proterozoic, suggesting that an amalgamation of ancient china continents had ever happened during the L liang Movement?between the early Proterozoic and the mid-Proterozoic.

关键词： rapakivi, U-Pb dating, Ar-Ar dating, Kunlun-Qinling orogenic belt.

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加强中国页岩气资源管理的思路框架

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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

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Effects of Soil Matric Potential on Tomato Growth Under Drip Irrigation of Soda Alkali-saline Soils

Effects of Soil Matric Potential on Tomato Growth Under Drip...

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亚洲精细农业与计算机农业应用联合大会

作者： LIU Shuhui 1 2 KANG Yaohu 1 WAN Shuqin 1 1. Key Laboratory of Water Cycle and Related land Surface Processes Institute of Geographic Science and Natural resources Research Chinese Academy of Sciences beijing 100101 china 2. Graduate School of Chinese Academy of Sciences beijing 100049 china

The effects of irrigation frequency and soil matric potential on to mato growth under drip irrigation in No rth china were studied. Results suggested that drip irrigation frequency and soil matric potential significantly influence the distribution of soil water. By presetting threshold of soil matric potential（-5.kPa, S1;-10 kPa, S2;-15.kPa, S3;-20 kPa, S4;-25.kPa,S5. to control the timing of the irrigation cycle with vacuum tensiometers buried at 0.2m depth immediately under drip emitter. Field experiments were carried out to investigate the effect of soil matric potential on tomato growth, y ield and irrigation water use efficiency under mulch drip irrigation in Soda Alkali -saline So ils in Jilin Province in china in the year of 2008. The results showed that the plant height, stem circu mference, LAI, Ch lorophyll content of tomato all increased with the increasing of soil matric potential. The higher the soil matric potential was, the higher the yields and the better the characteristics were. The highest yields were achieved with the soil matric potential of -5.kPa and the irrigation water use efficiency with the soil matric potential fro m -10 kPa to -15.kPa were h igher than that of other treatments.

关键词： Soda Alkali-Saline So ils Drip Irrigation So il Matric Potential Irrigation Frequency Tomato Growth

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SIMULATION OF RELATIONSHIP BETWEEN land PIECE SIZE AND VARIABLE RATE FERTILIZATION: Ⅰ. INFLUENCE OF SOIL NITRATE LEVEL

SIMULATION OF RELATIONSHIP BETWEEN LAND PIECE SIZE AND VARIA...

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Progress of information Technology in Agriculture

作者： Xue Xuzhang Chen Liping Pan Yuchun Zhao Chunjiang National Engineering Research center for information Technologies in Agriculture Post Code: 100089 beijing

＜正＞ In china, farmland allocation system separated farmland into equal sized small land pieces for each rural family and variable rate fertilization can only be based on these small land pieces. In this study, variable rate fertilization of corn based on this farmland allocation system was simulated to study the influence of land piece size and soil nitrate level on averaged N fertilization rate, averaged corn yield, and averaged nitrogen use efficiency. Lognormal distributions of soil nitrate concentration were generated based on given values of mean, variance and related distance. Each distribution is composed of nitrate concentration values in 104 cells composing a 25.a. field, with the unit cell size of 5.5.2. Variability of soil nitrate concentration within each 5.5.m2 cell is supposed to be nonexistent. The simulation program separated 25.a. field into equal-sized land pieces and calculate the area-weighted soil nitrate level within each land piece. The fertilization rate was calculated using the fertilization models established by Franzen and Cihacek in North Dakota based on a common yield goal and the area-weighted average of mean nitrate concentration within each land piece. The yield was calculated based on fertilization rate and soil nitrate concentration. Based on the fertilization rate and yield, the nitrogen use efficiency （ corn yield improvement caused by unit weight of nitrogen） was calculated. The simulation results show increasing or constant fertilization rate, increasing yield and nitrogen use efficiency when land piece size decreased. When soil nitrate concentration in the whole field increased, fertilization rate decreased and yield and nitrogen use efficiency increased. As land piece size becomes larger, the difference of the fertilization rate, yield and nitrogen use efficiency between different soil nitrate concentrations becomes more significant. With the increase of standard deviation, the increment of the fertilization rate from large la

关键词： variable-rate fertilization fertilization rate corn yield

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海南岛附近区域热带气旋低层风场的变化特征

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气候与环境研究 2018年第3期23卷 299-310页

作者：薛霖李英王丙兰周荣卫中国气象科学研究院灾害天气国家重点实验室北京100081 南京信息工程大学南京210044 中国气象局公共气象服务中心北京100081

利用1979~2015.JTWC(Joint Typhoon Warning center)最佳路径资料(2001~2015.资料用于台风风圈结构分析)及ERA-interim(0.5.×0.5.)再分析数据,统计分析我国海南岛附近区域(15.5.N^23.5.N,106°E^116°E)热带气旋(Tropical Cyclone,简称TC)低层风场的变化特征。结果表明:(1)年均5.5.TC于4~12月主要以西偏北路径进入该区域,其中海南岛东南侧海域TC出现频率最高且强TC比例最多,而岛西北区域出现频率最低,强TC比例最少。(2)TC中心位于海南岛不同方位时,其外围低层风场分布具有不同的非对称特征,且大风出现比率也各有差异;TC中心位于海南岛上时出现大风比率最高,位于岛南侧时次之,位于岛北侧时最小。(3)该区域TC平均最大风速半径(RMW)为5..3 km;TC位于岛上时RMW最大,而位于岛西南侧最小。(4)TC近中心最大风速由海上向陆地急剧减小,其高值中心主要位于雷州半岛东侧及西侧海域。(5.研究区域内TC的34节风圈半径在TC环流的东侧大而西侧小,强TC大而弱TC小。(6)不同区域TC变形程度有所差异。平均而言,位于岛西南侧TC变形最大而位于岛东南侧时变形最小。

关键词：热带气旋低层风场风圈半径海南岛

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区域生态系统可持续发展的生态价值评价——以宁夏灵武市为例

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生态学报 2002年第10期22卷 1573-1580页

作者：宗跃光周尚意温良郭瑞华张振世徐宏彦陈红春北京师范大学资源与环境科学系 100875 国地土地估价中心 100785 深圳市规划与国土资源局福田分局 518045

根据我国西部大开发战略 ,从生态经济价值理论出发 ,研究区域生态系统服务功能的价值体系及其基本估价方法。结合我国国情 ,将 Costanza等人单纯自然资本的测算推广到自然、经济、社会综合资本的测算 ,重点突出人类活动干扰下的区域生... 详细信息

根据我国西部大开发战略 ,从生态经济价值理论出发 ,研究区域生态系统服务功能的价值体系及其基本估价方法。结合我国国情 ,将 Costanza等人单纯自然资本的测算推广到自然、经济、社会综合资本的测算 ,重点突出人类活动干扰下的区域生态系统资本价值结构分析。研究表明 :1 997年灵武市牧草地和水域提供的资本价值约占自然资本总价值的97% ,工矿业消耗的自然资本占自然资本总损耗的 84 %。根据本文的全面测算结果 ,1 990～ 1 997年灵武市生态价值总资本年均递增 4 .5.% ,它将部分抵消该市国民生产总值 1 2 .6 %年均增长率。此外 ,如果用自然资本的增减作为强可持续发展的临界指标 ,1 990～ 1 997年本区域自然总资本以年均 4 %的速度递减。

关键词：区域生态系统可持续发展生态价值宁夏灵武环境影响评价

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A New Method for Multiple Cropping Index Monitoring Based on High Resolution Remote Sensing Data

A New Method for Multiple Cropping Index Monitoring Based on...

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亚洲精细农业与计算机农业应用联合大会

作者： Zhang Feifei 1 Wu Bingfang 1 Li Qiangzi 1 Meng Jihua 1 1 Institute of Remote Sensing in Application Chinese Academy of Sciences beijing

Multiple cropping is the practice of planting several different crops on the same plot of land in the same year. Specially in china, multiple cropping system has crucial function on feeding 22% people of the whole word by only 10% crop land of the whole world. Multiple cropping index （MCI） is a very important indicator in agricultural statistic in china, which represents the intensity of utilizing agriculture resources at time scale and the situation of arable land using effeciency. Based on the IRS-P6 AWiFS remote sensing data of 2008, the study developed a new method to monitor the MCI in high resolution （5.m） at county scale. The method was applied in Fengqiu county of Henan province and Yucheng county of Shandong province. In order to examine the accuracy of this new method, the field crop map data in two seasons with a scale of 5.5.km 2 is acquired to check the monitoring results. The estimated MCI of Fengqiu county is 191.20 in 2008 with a high accuracy of 97.38%, and 182.02 in Yucheng county a the high accuracy of 96.39%. The result shows that this study is a successful attempt to find a method using multi-temporal high resolution remote sensing data to estimate MCI to provide policy implication for decision making of agriculture production.

关键词： Multiple cropping index high resolution monitor remote sensing

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高分四号静止卫星数据的地表反照率反演

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遥感学报 2018年第2期22卷 220-233页

作者：孙越君汪子豪秦其明韩谷怀任华忠黄敬峰北京大学地球与空间科学学院遥感与地理信息系统研究所北京100871 青岛市交通运输公共服务中心青岛266061 空间信息集成与3s工程应用北京市重点实验室北京100871 地理信息基础软件与应用国家测绘地理信息局工程技术研究中心北京100871 浙江大学环境与资源学院农业遥感与信息技术应用研究所杭州310029

地表反照率(Albedo)是描述地表辐射能量平衡的重要参数,为了获得高分四号(GF-4)静止卫星的地表反照率产品,构建了一种基于核驱动双向反射率分布(BRDF)模型的反照率反演方法。首先,探索核驱动BRDF模型对GF-4卫星数据的适用性,加入地表分... 详细信息

地表反照率(Albedo)是描述地表辐射能量平衡的重要参数,为了获得高分四号(GF-4)静止卫星的地表反照率产品,构建了一种基于核驱动双向反射率分布(BRDF)模型的反照率反演方法。首先,探索核驱动BRDF模型对GF-4卫星数据的适用性,加入地表分类信息,为核系数赋初值,并引入鲍威尔迭代算法优化模型结果。然后,对BRDF模型进行角度积分获得各个波段的地表窄波段反照率。在此基础上,结合GF-4卫星光谱响应函数与光谱库,首次建立了将窄波段反照率到宽波段反照率的转换系数,并反演得到0.4—0.7μm和0.3—3.0μm的宽波段反照率。最后,利用landsat 8卫星数据和MODIS地表反照率产品对基于GF-4卫星数据的地表反照率反演结果进行交叉验证。landsat 8与GF-4的反照率结果对比表明,GF-4卫星可见光范围内的反照率反演结果精度为85.6%,短波范围内的反照率反演结果精度为93.4%;MODIS与GF-4的反照率结果对比表明,可见光范围的地表反照率精度达到87.7%,短波范围的地表反照率精度达到85.9%。这说明GF-4卫星地表反照率反演结果具有较高精度,GF-4卫星反照率产品具有一定应用潜力。

关键词：高分四号(GF-4) 高频次反照率 BRDF 静止卫星

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基于遥感信息和WOFOST模型参数同化的冬小麦单产估算方法研究

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麦类作物学报 2018年第9期38卷 1127-1136页

作者：陈艳玲顾晓鹤宫阿都胡圣武北京师范大学环境遥感与数字城市北京市重点实验室北京100875 北京师范大学环境演变与自然灾害教育部重点实验室北京100875 北京师范大学地理科学学部北京100875 国家农业信息化工程技术研究中心北京100097 河南理工大学测绘与国土信息工程学院河南焦作454000

为探讨遥感信息和作物生长模型在作物估产方面的优势互补特性,选取河北省藁城市冬小麦作为研究对象,采集多个关键生育时期的生理生化、农田环境、气象等数据,并获取准同步的环境减灾小卫星HJ-CCD影像数据,采用植被指数反演冬小麦叶面积... 详细信息

为探讨遥感信息和作物生长模型在作物估产方面的优势互补特性,选取河北省藁城市冬小麦作为研究对象,采集多个关键生育时期的生理生化、农田环境、气象等数据,并获取准同步的环境减灾小卫星HJ-CCD影像数据,采用植被指数反演冬小麦叶面积指数(LAI),基于扩展傅里叶振幅灵敏度检验法(EFAST)对WOFOST作物模型的26个初始参数进行全局敏感性分析,筛选敏感性参数,调整WOFOST模型的核心参数,利用查找表优化算法构建基于WOFOST模型和遥感LAI数据同化的区域尺度冬小麦单产预测模型,并定量预测区域冬小麦单产水平。结果表明,增强型植被指数(EVI)是遥感反演LAI的最佳植被指数(开花期建模r^2=0.913,RMSE=0.410,灌浆期建模r^2=0.798,RMSE=0.470),预测能力最强(开花期r^2=0.85.,RMSE=0.5.1,灌浆期r2=0.861,RMSE=0.428);筛选出6个待优化参数,即TSUM1、SLATB1、SLATB2、SPAN、EFFTB3和TMPF4;产量预测精度r^2=0.914,RMSE=25..67kg·hm^(-2),找到了待优化参数的最佳取值,最终完成了单产模拟。

关键词：冬小麦估产叶面积指数 WOFOST模型同化

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