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Comparison of the influence factors on NDVI for CCD camera and WFI imager on CBERS-02

Science china(Technological Sciences) 2005年第S2期48卷 100-115页

作者： YU Tao1,3, LI Xiaoying1,2,3, ZHANG Yong1,2,3, ZHAO Feng1,2,3, GU Xingfa1,3,4. ZHU Li1,2,3, WANG Pengxin5 & MIN Xiangjun6 1. State Key laboratory of remote sensing Science institute of remote sensing Application, CAS, Bei- jing 100101, china 2. Graduate University of chinese academy of Sciences, beijing 100039, china 3. The Center for National Spaceborne Demonstration, beijing 100101, china 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84.14.Avignon, France 5. College of information and Electrical Engineering, china Agricultural University, beijing 100083, china 6. china Center for resource Satellite Data and Application, beijing 100830, china State Key laboratory of remote sensing Science Institute of Remote Sensing Application CAS Beijing 100101 China Center for National Spaceborne Demonstration Beijing 100101 China Graduate University Chinese Academy of Sciences Beijing 100039 China Institut National de la Recherche Agronomique Climat Sol Environnement 84914 Avignon France College of information and Electrical Engineering China Agricultural University Beijing 100083 China china Center for resource Satellite Data and Application Beijing 100830 China

CCD and WFI are payloads in the visible light and near infrared bands on CBERS satellites and they have not been applied widely, especially WFI. This article mainly probes into the potential of these two sensors’ application in the vegetation monitoring and analyses the influences of radiometric calibration, atmosphere conditions and sun-observing geometry, etc. on NDVI obtained from these two sensors respectively. In addition it analyses the effect of the spectral response difference of red and near infrared spectral bands in CCD and WFI sensors on NDVI. Results indicate that radiometric calibration is the most important factor on NDVI, which cannot be applied to vegetation monitoring without radiometric calibration. Results also demonstrate that near surface NDVI is different greatly from that of TOA which change with atmosphere conditions. The study shows that NDVI is also affected by the non-lambertian character of surface and the change of the atmospheric path with the observing geometry. And NDVI of WFI is higher than that of CCD. They are very different because of their spectral difference, but they have a good linear relevant relationship.

关键词： CCD WFI NDVI LAI.

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Monitoring the Cultivated Slope Land in the Three Gorges Reservoir Area Based on remote sensing and GIS

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Wuhan University Journal of Natural Sciences 2006年第4期11卷 915-921页

作者： ZHOU Jieming1, ZHOU Qigang 2, 3 ,HUANG Zhiqin 2, 3, 4.1. The Faculty of Geography and resources Science, Sichuan Normal University, Chengdu 610066, Sichuan, china 2. institute of Mountain Hazards and Environment, chinese {4. of Sciences, Chengdu 61004., Sichuan, china 3. Graduate University of the chinese {4. of Sciences, beijing 10004., china 4. information Center of Land and resources Department of Sichuan Province, Chengdu 61004., Sichuan, china The Faculty of Geography and resources Science Sichuan Normal University Chengdu Sichuan China institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu Sichuan China Graduate University of the chinese academy of Sciences Beijing China information Center of Land and resources Department of Sichuan Province Chengdu Sichuan China

By means of combining auto-extraction with manual interpretation, the current distribution information about cultivated land is obtained. The distribution information of 1992 is extracted from the dynamic polygons of 2002. The monitoring mini-system of the cultivated slope land is established. In the system, detailed surveys, focused on the resources of cultivated slope land, are carried out. The results indicate that the area of the cultivated slope land is very large. Meanwhile, there are lots of cultivated steep slopes with gradient above 35°. The areas of steep land cultivated had been slowly reduced from 1992 to 2002. At the same time, the pressures of returning farm land to forestry are great in all counties. The conflicts between population growth, insufficient grain supply and stagnant economic development sharpen increasingly. It is inevitable to improve the agricultural structure.

关键词： slope land cultivated remote sensing geography information system (GIS) the pressure of returning farm land to forestry Three Gorges Reservoir Area

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Spatial Distribution of Land Cover and Vegetation Activity along Topographic Gradient in an Arid River Valley, SW china

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Journal of Mountain Science 2009年第3期6卷 274-285页

作者： LIU Wen XU Xianli LUO Jiancheng SHEN Zhanfeng ZHONG Qiuhai Department of Automatic Control School of Automation Beijing Institute of Technology Beijing 100081 China State Key laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China institute of remote sensing Applications Chinese Academy of Sciences Beijing 100101 China Centre for Hydrology Micrometeorology and Climate Change Department of Civil and Environmental Engineering University College Cork Cork Ireland

Anthropogenic activities have become more and more important in characterizing the landscape, but their impacts are still restricted by natural environments. This paper discusses the interactions of anthropogenic activity, vegetation activity and topography through describing the spatial distribution of land cover and vegetation activity (represented by Normalized Difference Vegetation Index, NDVI) along topographic gradient in a mountainous area of southwestern china. Our results indicate that the existing landscape pattern is controlled by anthropogenic activities as well as topographic factors. Intensive anthropogenic activities mainly occur in areas with relatively low elevation, gentle and concave slopes, as these areas are easy and convenient to attain for human. Because of the destruction by human, some land cover types (mainly grassland and shrub) are only found in relatively harsher environments. This study also finds that topographic wetness index (W) used in other places only reflects runoff generation capacity, but not indicate the real spatial pattern of soil water content in this area. The relationships between NDVI and W, and NDVI and length slope factor (LSF) show that runoff and erosion have complex effects on vegetation activity. Greater values of W and LSF will lead to stronger capacity to produce runoff and transport sediment, and thereby increase soil water content and soil deposition, whereas beyond a certain threshold runoff and erosion are so strong that they would destruct vegetation growth. This study provides information needed to successfully restore native vegetation, improve land management, and promote sustainable development in mountainous areas, especially for developing regions.

关键词： Vertical distribution of land cover Anthropogenic activity Vegetation activity Environmental variability china

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西藏灌木林种群分布格局

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山地学报 2011年第1期29卷 123-128页

作者：张超黄清麟普布顿珠旦增中国林业科学研究院资源信息研究所国家林业局林业遥感与信息技术重点实验室西南林业大学资源学院西藏自治区林业调查规划研究院

以西藏地区370个灌木林标准地调查数据为基础,计算了包括负二项式K值、方差/均值比率t值、丛生指标、平均拥挤指数、聚块性指标、扩散指标、格林指数和Cassic指标,定量测度了各标准地内种群的分布格局类型及集聚强度,分析了西藏灌木种... 详细信息

以西藏地区370个灌木林标准地调查数据为基础,计算了包括负二项式K值、方差/均值比率t值、丛生指标、平均拥挤指数、聚块性指标、扩散指标、格林指数和Cassic指标,定量测度了各标准地内种群的分布格局类型及集聚强度,分析了西藏灌木种群分布格局随海拔和坡度的变化特征。研究结果表明,1.西藏优势灌木种群分布格局包括集群分布和随机分布两种,其中,随机分布占60%;2.随着海拔及坡度的增加,西藏灌木种群均呈现由集群分布向随机分布变化的趋势,且大部分地区的灌木种群呈随机分布。

关键词：西藏灌木林种群分布格局

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福建省永安市西洋镇2.5a生人促阔叶林与伐前林分的对比评价

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山地学报 2010年第1期28卷 63-68页

作者：张晓红黄清麟张超中国林业科学研究院资源信息研究所国家林业局林业遥感与信息技术重点实验室西南林学院资源学院

福建省永安市西洋镇2.5a生人促阔叶林分平均胸径、树高、密度、单位面积蓄积量和平均年生长量分别为2.0cm、1.8m、19533株/hm2、7.0m3/hm2和2.80m3/(hm2.a),乔木层物种丰富度R、多样性指数SW、均匀度E和生态优势度ED分别为33、2.93、0.6... 详细信息

福建省永安市西洋镇2.5a生人促阔叶林分平均胸径、树高、密度、单位面积蓄积量和平均年生长量分别为2.0cm、1.8m、19533株/hm2、7.0m3/hm2和2.80m3/(hm2.a),乔木层物种丰富度R、多样性指数SW、均匀度E和生态优势度ED分别为33、2.93、0.62和0.21,林分相对直径分布范围0.25～3.00,直径分布为反J型,表现为异龄林特征。35a生的伐前林分平均胸径、树高、密度、单位面积蓄积量和平均年生长量分别为13.6cm、10.5m、1185株/hm2、101.3m3/hm2和2.89m3/(hm2.a),乔木层物种丰富度R、多样性指数SW、均匀度E和生态优势度ED分别为24.3.72、0.81和0.10,林分相对直径分布范围0.4.～2.50,直径分布为反J型,表现为异龄林特征。

关键词：人促阔叶林伐前林分对比评价福建省永安市

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research on Extracting forest Stand information based on 3D Laser Scanner Techniques

Research on Extracting Forest Stand Information based on 3D ...

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2012 IEEE International Conference on Computer Science and Automation Engineering（CSAE 2012）

作者： LU Kangning 1 ZHANG Huaiqing 2 GAO Shizeng 3 JIANG Xian 4.research institute of forestry resource {4. Techniques chinese academy of forestry beijing china WU Xueming 1 ZHANG Ning 2 KUANG Yilong 3 research Center of forestry remote sensing & {4. Engineering Central South University of forestry & technology Changsha Hu’nan china

The development of laser scanning technology provides a new way to make people obtain spatial information from the traditional manual to *** this study,we take the FARO Laser Scanner Photon as the data obtained platform,we scanned a 10 m×15 m plot,total 20 trees in Pinus bungeana ***,extract every tree’s data from the point cloud and measure the tree height and diameter at breast height（DBH）.After make accuracy precision and correlation analysis with the measured data,it is showed that the method mentioned can be satisfied the accuracy requirement of forest investigation and can be used to measure the tree height and *** with traditional technology,the applications of 3D laser scanning technique have a broad development space on tree measuring.

关键词： Stand Laser Scanner Point Clouds Accuracy Precision

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Study on Decision Support System of Agricultural Sustainable Development of Jianli County in Jianghan Plain

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Wuhan University Journal of Natural Sciences 2000年第3期5卷 334-338页

作者： Wang Xue\|lei, Liu Gong\|hu institute of Geodesy and Geophysics, chinese academy of Sciences, Wuhan 4.0077 , china institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan China

With the agricultural development and the modernization of decision-making, it is necessary to establish the agricultural sustainable development decision support system supported by GIS. We set Jianli county as an example; our aim is to realize decision spatialiazation with the support of information system, remote sensing and artificial intelligence. The system components are described in the aspects of database, knowledge base, model-base and method-base. This system will provide a workable system for local decision-makers and agricultural management sections.

关键词： Key words agricultural sustainable development decision support system system function

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Characteristics of landscape information Tupu of the Yellow River swings and its subdeltas during 1855―2000

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Science china Earth Sciences 2007年第10期50卷 1566-1577页

作者： YE QingHua1,3?, CHEN ShenLiang2, HUANG Chong4. XUE YunChuan5, TIAN GuoLiang3, CHEN ShuPeng3,4. SHI YaNan4. LIU QingSheng4.& LIU GaoHuan4.1 institute of Tibetan Plateau research (ITPR), chinese academy of Sciences (CAS), {4. 100085, china 2 State Key laboratory of Estuarine and Coastal research, East china Normal University, Shanghai 200062, china 3 State Key laboratory of remote sensing Science, institute of remote sensing Applications (IRSA), CAS, {4. 100101, china 4.institute of Geographic Sciences and Natural resources research, CAS, {4. 100101, china 5 Qingdao Meteorological Bureau, Qingdao 266003, china institute of Tibetan Plateau research (ITPR) Chinese Academy of Sciences (CAS) Beijing 100085 China State Key laboratory of remote sensing Science Institute of Remote Sensing Applications (IRSA) CAS Beijing 100101 China State Key laboratory of Estuarine and Coastal research East China Normal University Shanghai 200062 China institute of Geographic Sciences and Natural resources research CAS Beijing 100101 China Qingdao Meteorological Bureau Qingdao 266003 China State Key laboratory of remote sensing Science Institute of Remote Sensing Applications (IRSA) CAS Beijing 100101 China State Key laboratory of remote sensing Science Institute of Remote Sensing Applications (IRSA) CAS Beijing 100101 China institute of Geographic Sciences and Natural resources research CAS Beijing 100101 China

Based on the theories and methods of cartography on spatial pattern and temporal evolution in Geo-information Tupu (Carto-methodology in Geo-information, CMGI) and the quantitative measurements of pattern and process in landscape ecology, the methodology of landscape information Tupu in studying the swing process of the Yellow River (YR) over the Yellow River Delta (YRD) during 1855― 2000 has been demonstrated. The main content includes: (1) methodology of landscape information Tupu; (2) evolution process Tupu of YR rump channels; (3) evolution process Tupu of the 7 pieces of subdeltas in YRD during 1855―2000; (4. landscape information Tupu of the modern YRD and the current YRD; (5) landscape information Tupu of YR rump channels on the 7 pieces of subdeltas during 1855―2000; and (6) corridor-matrix landscape information Tupu by YR swings. The methodology of landscape information Tupu here is still primary but we hope that it could provide a new tool for exploring an integrated research on spatiotemporal approaches for landscape "pattern and process".

关键词： Geo-information Tupu, landscape information Tupu, spatiotemporal analysis, the Yellow River (YR), the Yellow River Delta (YRD), corridor-matrix landscape

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El Nino And forest Fire In Yunnan Province, Southwest china -New Way to Study Three Essential Factors of forest Fire

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chinese forestry Science and technology 2003年第1期2卷 16-23页

作者： ZHAOXianwen SI Linresearch institute of resource information Techniques. {4. academy of forestry.Wan Shou Shan. beijing 100091. chinazhaoxw @ info.forestry. ac. en

Three essential factors of forest fire (fire source, environment, and litter) were taken as the point of view, and has approached the forecast method of forest fire in tropical area of southwest china in a macroscopic scale. This study supported by mathematical method was from a new angle. For example, in the aspect of forest fire forecast, it has been thought over that most forest fire is artificial fire, which has lots of randomness. So it could be studied in a kind of Markov random processes. In the ...

关键词： EL Nino forest fire remote sensing Markov litter

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Extracting spatial patterns of ocean fishery using GIS and RS —— Taking the East china Sea as an example

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Acta Oceanologica Sinica 2003年第1期22卷 25-34页

作者：杜云艳周成虎苏奋振刘宝银邵全琴 institute of Geography Science and resource research Chinese Academy of SciencesBeijing 100101China First institute of Oceanography State Oceanic AdministrationQingdao 266061China

The ocean fishery and the corresponding environment are highly interrelated according tothe production experiences of ocean fishing population. The spatial cluster patterns are constructed using the remote sensed data and long-time series fishery production data under the uniform coordinate based on GIS techniques. Thus, the hidden information of distribution regularities between ocean-hydrologic factors and central fishing ground can be extracted from these patterns. It is important to forecast the ocean fishery production.

关键词： GIS remote sensing ocean fishery spatial cluster

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