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  • Table of Content
       , Volume 22 Issue 1 Previous Issue    Next Issue
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    Review

    Hyperspectral Mineral Mapping and Its Application
    WANG Run-Sheng, GAN Fu-Ping, YAN Bai-Kun, YANG Su-Ming, WANG Qing-Hua
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 1-13.   DOI: 10.6046/gtzyyg.2010.01.01
    Abstract   HTML   PDF (2801KB) ( 2657 )

     Funded by Ministry of Land and Resources of China, China Geological Survey and  National High Technology Research and

    Development Program of China (National 863 Program), the Hyperspectral Research Group of China Aero Geophysical Survey and Remote

    Sensing Center for Land and Resources (AGRS) has made remarkable scientific achievements in hyperspectral mineral identification

    and mineral mapping since the implementation of  the ‘Ninth Five-Year Plan’. These  achievements include: (1) the analysis of

    features of rock and mineral spectra and  influencing factors, (2) mineral identification, abundance estimation and component

    derivation, (3) multispectral and hyperspectral data processing and mineral mapping in mid-thermal infrared spectral region, (4)

    geological application model, working methods and technical processes, and  technology systematic architecture of hyperspectral

    mineral mapping, and (5) applications of mineral mapping in such fields as regional mineral survey, geological exploration,

    metallogenic and prospecting modeling, plant geochemical detection, mining environmental monitoring, and lunar and planetary

    exploration. These achievements are reviewed and summarized in this paper, and the development tendency and research orientations

    in hyperspectral mineral mapping are also discussed.

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    Technological Progress and Sustainable Development of Remote Sensing for Uranium Geology since the Beginning of the 21st Century
    LIU De-Chang, ZHAO Ying-Jun, YANG Xu
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 14-18.   DOI: 10.6046/gtzyyg.2010.01.02
    Abstract   HTML   PDF (1083KB) ( 1089 )

    The paper has reviewed the technological progress of remote sensing for uranium geology in Beijing Research Institute

    of Uranium Geology (BRIUG),discussed scientific and technological progress of uranium geology based on remote sensing technique

    and probed into the sustainable development of remote sensing for uranium geology with the purpose of making remote sensing play

    an increasingly important role in uranium geology in future.

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    New Progress in the Classification of High Spatial Resolution Satellite Images for LUCC
    BAI Mu, LIU Hui-Ping, QIAO Yu, WANG Xiao-Dong
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 19-23.   DOI: 10.6046/gtzyyg.2010.01.03
    Abstract   HTML   PDF (752KB) ( 2089 )

    The application of high spatial resolution remote sensing images to the study of LUCC has promoted the further

    development of remote sensing classification techniques in three aspects, namely classification object, classification features

    and classifiers. This paper gives a review of the new progress, describes the representative methods, analyzes characteristics of

    various methods, and summarizes the progress in the study of remote sensing classification.

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    Technology and Methodology
    The Automatic Registration of Airborne Dual-Antenna Interferometric
    SAR Complex Images
    SUN Zhong-Chang, GUO Hua-Dong, JIAO Meng-Mei, LIU Guang
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 24-29.   DOI: 10.6046/gtzyyg.2010.01.04
    Abstract   HTML   PDF (918KB) ( 1336 )

    For the purpose of improving the precision of SAR interferometric measurement, the registration of InSAR complex images

    is one of the key technologies involved in SAR interferometry. For the airborne dual-antenna InSAR system, the accurate terrain

    elevation measurement needs to be ensured by the accurate interferometric phase; therefore, the registration of sub-pixel complex

    images is very important. In order to improve the registration precision and computational speed of airborne dual-antenna

    interferometric SAR complex images, the authors employed the methods of complex correlation fine registration based FFT and over

    -sampling image fine registration in this study. Chinese airborne dual-antenna InSAR complex images were chosen to perform the

    above-mentioned algorithms; meanwhile, interferogram was generated and the coherence of registered images was analyzed.The

    results show that both algorithms are feasible and robust.However, through analyzing registration precision and computational

    speed of the two algorithms, the authors have reached the conclusion that the complex correlation fine registration  based FFT

    method is more accurate, and its computation efficiency is higher. The practical application also proves that the complex

    correlation fine registration based FFT method is applicable and effective.

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    Study on Band Sequence Structure Analysis of Hyperspectral Data
    ZHANG Yuan-Fei, Wu De-Wen, ZHANG Gen-Zhong, ZHU Gu-Chang, LI Hong
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 30-38.   DOI: 10.6046/gtzyyg.2010.01.05
    Abstract   HTML   PDF (1997KB) ( 1918 )

    This paper puts forwards a new kind of technical approach-Band Sequence Structure Analysis (BSSA) by using the

    hyperspectral data as the band-series data which have almost continuous sub-band. This new technical approach includes such means

    as band sequence histogram, left (right) skew parameter analysis, relevant (similar) matrix and regression skew analysis. In this

    paper, the BSSA of hyperspectral data is applied to such fields as statistical character analysis and quality evaluation,

    evaluation of potentiality of alteration information, selection of characteristic bands and extraction of mineral alteration

    information. The result of the application demonstrates the scientific value and practicality of the new technical idea.

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    Multi Remote Sensing Image Mosaic Based on Valid Area
    ZHANG Deng-Rong, ZHANG Han-Kui, YU Le, CHEN Qian
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 39-43.   DOI: 10.6046/gtzyyg.2010.01.06
    Abstract   HTML   PDF (1419KB) ( 2262 )

    Lack of automaticity and ineffective elimination of seam line exist in the present remote sensing image mosaic. Aimed

    at solving these problems, this paper has improved the existing mosaic technology by using valid area. The valid area is obtained

    using the automatic tracing method, based on which mosaic of multi remote sensing images is carried out. First, at the geometric

    splicing stage, primitive rectangle image participation is replaced by the valid area to carry out splicing. Second, the seam

    line is determined using the valid area of the two images, and is eliminated using the whole tone adjustment and the overlapping

    area weighting. Finally, in the multi-image mosaic process, the valid area of the resultant image is obtained by collage of the

    valid area of two original images. Through the mosaic experiment on two groups of multi remote sensing images, it is concluded

    that this technical flow can implement completely the automatic image dodging, and the overall tone is consistent without obvious

    seam line in the resultant images.

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    Coseismic Deformation Field Characteristics and Rupture Model for Gaize Earthquakes in Tibet
    HONG Shun-Ying, LIU Zhi-Rong, DAI Ya-Qiong, SHEN Xu-Hui, SHAN Xin-Jian, JING Feng
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 44-48.   DOI: 10.6046/gtzyyg.2010.01.07
    Abstract   HTML   PDF (1545KB) ( 981 )

    Through differential interferometry of ascending and descending orbit ASAR data, the authors obtained the Double-LOS

    coseismic deformation fields of Gaize earthquake in Tibet. A characteristic analysis of coseismic deformation field indicates

    that the Ms 6.9 mainshock and Ms 6.0 aftershock both showed the typical model of normal fault and successively gave birth to east

    and west normal faulted fracture zones with different sizes probably at depth, trending NE and dipping NW, with the formation of

    east and west subsiding centers on the northwest plate. From the incising of interferometric stripes, it can be judged that the

    east and west subsiding centers are controlled respectively by January 9, 2008 Ms 6.9 mainshock and January 16, 2008 Ms 6.0

    aftershock. The Ms 6.9 mainshock shaped the basic pattern of subsiding in the northwest plate and uplifting in the southeast

    plate. And the Ms 6.0 aftershock caused the further subsidence of the epicenter and the western part of the northwest plate;

    therefore, the subsidence value of the west subsiding center is larger than that of the east subsiding center. The obtaining of

    coseismic deformation fields of ascending-descending orbits has provided the better restriction and information for further

    hypocenter mechanism simulation and 3-D deformation field calculation.

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    Building Outline Information Extraction Based on Mathematical Morphology
    WANG Yong-Gang, MA Cai-Xia, LIU Hui-Ping
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 49-54.   DOI: 10.6046/gtzyyg.2010.01.08
    Abstract   HTML   PDF (1357KB) ( 1362 )

     In view of characteristics of high-resolution satellite images, this paper has designed a set of technological schemes

    for semiautomatic rapid and easy extraction of building 2-D rooftop information. Firstly image preprocessing was performed by

    using the Maximum Homogeneity Neighbor Filter Method. Then Differential Morphological Profile Method was employed which is based

    on the reconstruction of classical morphological algorithms such as erosion, dilation as well as open and close operators. Some

    preliminary improvements were made in choosing the step of structure operator. The image after-processing was made based on the

    combination of Label Region and Threshold Segmentation. Finally the QuickBird image was chosen which covered the campus of

    Beijing Normal University as the study area because of its dense man-made buildings. The result shows that this set of

    technological schemes not only has a good extraction effect for regular buildings, but also can extract the outline of the

    complex building effectively.

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    An Algorithm for Separating Cloud-Fog from Surface Features Based on Mixed Pixels
    MA Hui-Yun, FAN Chong, ZHAO Xiang-Dong
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 55-59.   DOI: 10.6046/gtzyyg.2010.01.09
    Abstract   HTML   PDF (1121KB) ( 1463 )

    The difficulties in separating cloud-fog from surface features in different time zones were studied in this paper.

    Based on the principle of visual interpretation, the authors have developed an adaptive threshold algorithm for separating cloud

    -fog from surface features. The parameters were determined based on MODIS data, and the stability, feasibility and precision of

    this algorithm were verified based on validation data. According to the results, this algorithm has strong stability and

    feasibility and can be performed automatically.

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    The Relationship Between Inter-annual Variations of Land Surface
    Temperature and Climate Factors in the Yangtze River Delta
    XU Yong-Ming, QIN Zhi-Hao, SHEN Yan
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 60-64.   DOI: 10.6046/gtzyyg.2010.01.10
    Abstract   HTML   PDF (1142KB) ( 1615 )

    With the Yangtze River delta as the study area, this paper quantitatively analyzed the temporal responses of land

    surface temperature annual variability to climate factors based on MODIS LST products and meteorological observation data. First,

    the Harmonic Analysis of Time Series (HANTS) algorithm was employed to distill LST harmonics (periodical fluctuation characters)

    and reconstruct cloud-free LST time-series. The solar radiation of the study area was calculated and its impact on LST inter-

    annual was investigated by time lag cross-correlation analysis. The high correlation coefficient (mean coefficient is 0.991 6)

    indicates the sensitivity of LST seasonal variations to solar radiance, and lag days show that the peak time of LST is about 20

    days later than solar radiance. The analysis between the inter-annual variations of land surface temperature and air temperature

    shows that air temperature has significant correlations with LST and the air temperature delays about 5 days relative to LST

    seasonal fluctuation.

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    A Discussion on an Object-oriented Approach to Island Recognition Based
    on Multi-source and Multi-temporal Remotely Sensed Data
    LI Min-Guang, LI Ying-Cheng, XUE Yan-Li, YE Dong-Mei
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 65-68.   DOI: 10.6046/gtzyyg.2010.01.11
    Abstract   HTML   PDF (920KB) ( 1579 )

    Remote sensing technology has found a wide range of applications in the new round of national island investigation. On

    account of the deficiency of visual interpretation,the  object-oriented approach was adopted in this paper to extract island

    thematic information. For multi-source,multi-resolution data and multi-temporal high resolution optical data,different

    strategies were adopted to detect small objects and eliminate false information. The experiment results show that the proposed

    methods give a fine performance in both recognition capability and recognition accuracy.

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    A Study on the Spatial Pattern of Urban Impervious Surface and Scale
    Effects Based on Remote Sensing Data
    LI Wei-Feng, WANG Yi
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 69-72.   DOI: 10.6046/gtzyyg.2010.01.12
    Abstract   HTML   PDF (907KB) ( 1350 )

     The increase of various impervious land surfaces constitutes one of the main features in urban development, which

    results in serious adverse impacts on regional environment. In this study, a new methodology was developed to model urban land

    imperviousness based on multi-spectral features by using SPOT image. The results show that the combination of multi-spectral

    features can efficiently predict land imperviousness. The significant relations between land imperviousness and SPOT based

    spectral features can reach 0.818 (p<0.001). The distribution pattern of urban imperviousness was extracted based on the

    developed impervious index and object-oriented classification. The results show that more than 70% lands of the city center are

    estimated as being of high or middle imperviousness. The average size of these impervious patches is large with a heterogeneous

    and fragmented distribution pattern. The tests on scale impacts show that the accuracy of surface imperviousness derived from the

    lower spatial resolution is higher than that from the high spatial resolution image. Accordingly, the impervious surface patterns

    are obviously different.

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    The Information Extraction Method for Land Use and Cover Change (LUCC)
    after the Earthquake in Dujiang Dam
    NI Zhong-Yun, HE Zheng-Wei, ZHAO Yin-Bing, WANG Le, GAO Hui, CAI Ke-Ke
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 73-76.   DOI: 10.6046/gtzyyg.2010.01.13
    Abstract   HTML   PDF (1338KB) ( 1620 )

    It is very important to immediately and accurately acquire LUCC information after “5•12” Earthquake for disaster

    mitigation,post-disaster reconstruction and restoration of the ecological environment. Remote Sensing images are characterized

    by a wide range of information,timeliness and rapidness in LUCC information extraction. Traditional methods in LUCC information

    extraction from remote sensing images often take the overall area as a study target,classify the images and acquire the

    information directly. Nevertheless, these methods are liable to ignore the influence of topography, geological structure and

    other background factors on the classification results. The solution lies in dividing the image into sub-blocks,sub-block

    classification and comprehensive analysis based on geographic and geological environment. In this paper, Dujiang Dam as the study

    area was divided into four blocks: plain district (Ⅰ),middle-mountain district (Ⅱ),middle and high mountain district (Ⅲ) and

    high mountain district (Ⅳ) based on the distribution characteristics of geological structures and landform development patterns.

    ISODATA method was used for non-supervised classification in District I, maximum likelihood (ML) classification method for

    supervised classification was used in DistrictⅡ and Ⅲ, and man-machine interactive interpretation method for classification was

    used in District Ⅳ. The results show that the classification method based on the division of geographic and geological

    environment is efficient and precise.

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    Technology Application
    The Monitoring of Land Desertification in the Manasi River Basin Based
    on Multi-source Remotely Sensed Data
    LIU Yan, DING Tao- , RUAN Hui-Hua, LIN Na
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 81-84.   DOI: 10.6046/gtzyyg.2010.01.15
    Abstract   HTML   PDF (1123KB) ( 1311 )

    With the zone of oasis and deserts in the Manias River basin as the study object, the authors used different periods of TM data to analyze the patio-temporal features of land desertification at a small scale during the period of 2000~2008, and then calculated indexes of wind-eroded land desertification by using the multi-source information compounding method based on the MODIS data products (NDVI, Albode, LST). Meanwhile, on the basis of the TM land desertification monitoring results, land desertification indexes were processed at different levels, and an assessment model for land desertification monitoring was built approximately. It is shown that, in the past ten years, desertification land in the periphery area has not changed remarkably, while desertification land in the interior of the basin has experienced considerable change, which seems largely caused by local land cultivation or salinization. The experimental results show that a precision of 91.25% can be reached in quantitative assessment of land desertification.

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    The Monitoring of Dynamic Changes of Soil Salinization in the Downstream
    Oasis of the Kaidu River Based on Remote Sensing Technology
    LI Hui-Zhi, LI Xin-Guo, WANG Ying
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 85-88.   DOI: 10.6046/gtzyyg.2010.01.16
    Abstract   HTML   PDF (958KB) ( 1358 )

    Three temporal remote sensing images were used as the main sources of information. The images were processed in combination with field investigation. The results show that soil salinization of the land area had increased from 1973 to 1990,and then declined from 1990 to 2005; the extent of land salinization had increased from 1973 to 1990,and then decreased from 1990 to 2005. Land salinization is distributed around the low-lying areas of the Kaidu River, lakesides and Qingshui Drainage,Quhui Drainage and Wushitala Drainage on the north of the Bosten Lake. The land salinization was closely related to topography, groundwater and arid climatic conditions. Human agricultural activities have also played an important role in soil salinization.

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    Reflectance Spectral Characteristics and Spatial Structure of Typical Objects
    in Mineralization and Alteration Areas: A Case Study of the Tuquan—Jarud County Metallogenic Belt in Inner Mongolia
    LI Hong, ZHU Gu-Chang, ZHANG Yuan-Fei, YANG Zi-An
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 89-95.   DOI: 10.6046/gtzyyg.2010.01.17
    Abstract   HTML   PDF (1640KB) ( 2865 )

     Spectral reflectance characteristics of rock,soil and vegetation are analyzed based on  field data,and a new method

    for studying the geometric structure and spatial relationship of typical objects in the spectral feature space is put forward. In

    addition, the distribution pattern and relation of typical objects in the spectral feature space within medium vegetation covered

    mineral alteration areas are summarized. These conclusions serve as the scientific basis for mineral alteration information

    extraction and are also useful to improving the method for extracting mineral alteration information.

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    Land Cover Classification Based on Linear Spectral Mixture
    Decomposition Combined with Maximum Likelihood Classfication:
    A Case Study of Hongsipu Irrigation Area
    YU Xiao-Qian, LIU Na, LI Hong, LIAO Tie-Jun, SUN Dan-Feng
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 96-100.   DOI: 10.6046/gtzyyg.2010.01.18
    Abstract   HTML   PDF (1257KB) ( 1162 )

    This paper deals with the land cover classification of the Hongsipu Irrigation Area in Ningxia in 1989 based on remote

    sensing techniques, serving as a benchmark for the study of the development zones. Reference end-members were used as the

    characteristics of classification with which the classification function was stable and the results of classification were easily

    to explain. The results show that the overall accuracy of maximum likelihood classification based on abundance maps derived from

    the decomposition of mixed pixels is 77.53%. Compared with the maximum likelihood classification based on original image, the

    overall accuracy is raised by 9.8%. Therefore, the combination of the linear spectral mixture decomposition model and the maximum

    likelihood classification constitutes a good classification method. In order to improve the classification accuracy, this paper

    makes a post-processing on the classification results to meet the actual demand.

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    The Change of Wetland in Hexi Corridor in the Past Thirty Years and a Tentative Discussion on Its Mechanism
    BAI Lei, JIANG Qi-Gang, LIU Wan-Song, CUI Han-Wen
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 101-106.   DOI: 10.6046/gtzyyg.2010.01.19
    Abstract   HTML   PDF (963KB) ( 1403 )

     In this paper, the wetland in Hexi Corridor was dynamically monitored by remote sensing technology using four different

    temporal remote sensing data. The results show that the area of the wetland was 14 132.38 km2 in 1973, 13 299.44 km2 in 1990, 12

    519.88 km2 in 2000, and 12 312.38 km2 in 2006. In the past 30 years, the reduced area amounted to 1 820.00 km2, which occupied

    12.88% of the total area, with the dynamic degree being -0.39%. Natural wetland has been reduced continuously at an accelerating

    speed, with swamp reduced most significantly. Meanwhile, the area of man-made wetland has steadily increased, especially in

    recent years. The number and density of wetland patches have increased, and the fragmentation degree now is higher than that in

    the past. The diversity index and evenness index have increased continuously, the difference between the proportions of  various

    wetlands have decreased, and the distribution wetlands tends to become uniform. Temperature, precipitation, uplift of the Tibetan

    plateau and other natural factors seem to be the important causes for wetland change in Hexi Corridor. In addition, human

    activities have undoubtedly aggravated such a tendency.

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    An Analysis of Land Use Change in Urban Boroler Areas of Shijiazhuang City
    GAO Ying-Chun, WANG Li-Xiang, TONG Lian-Jun, YIN Jun
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 107-111.   DOI: 10.6046/gtzyyg.2010.01.20
    Abstract   HTML   PDF (884KB) ( 1775 )

     The urban border area is consistently in a dynamic change, and the management of land use change in such an area is

    the key to coordinating urbanization with farmland protection. Based on the method of comparison after classification and taking

    different time-based high-resolution remote sensing images as information sources, the authors extracted land change information

    of 1994-2002 from the urban border areas of Shijiazhuang City. Based on an analysis of urban border land use change, the authors

    put forward some proposals on the improvement of the urban border land-use management in Shijiazhuang City in future.

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    Radar Signal Features of Oil Slick Based on the Satellite Synchronous
    Observation Experiment with Radarsat-2 Data
    LIU Yang, SHAO Yun, QI Xiao-Ping, WANG Shi-Ang, YUAN Jun-Na, SHEN Jin-Li
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 112-116.   DOI: 10.6046/gtzyyg.2010.01.21
    Abstract   HTML   PDF (1060KB) ( 1296 )

     The distribution of natural marine hydrocarbon seepage has great significance for the early stage offshore petroleum

    exploration. In this paper, a satellite synchronous observation experiment was made.
    oil slick was made with machine oil and imaged by RadarSAT-2 SAR data after 14 minutes. Some conclusions have been reached: under

    a certain suitable sea condition, it is possible for SAR data with resolution of 3 meters to detect oil slick with the thickness

    of several micron meters, and there is 5 dB relative damping on sea surface wave in this case; SAR measurements can further

    confirm the influence of wind and current condition on the evolution of oil slick.

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    A Landscape Ecological Analysis of the Change and Drive Pattern in the Middle Shiyang River Valley
    SONG Xiao-Ning, SHU Xiao-Hua, LI Xiao-Tao, LI Xin-Hui
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 117-122.   DOI: 10.6046/gtzyyg.2010.01.22
    Abstract   HTML   PDF (1196KB) ( 1244 )

     The middle Shiyang River valley with a sensitive ecological environment was chosen as the study area. First of all,

    land use/land cover information was extracted by using multi-temporal and multi-source remote sensing image. Then the landscape

    change tendency, change area, change rate and specific conversion type were studied quantitatively through the transfer matrix

    calculation. Through extracting characteristics of landscape pattern indexes, the regional pattern of landscape ecology and

    landscape heterogeneity were analyzed. Finally, the driving factors for landscape pattern change were investigated. This study is

    likely to deepen the scientific understanding of the ecological environment in the middle Shiyang River valley and can promote

    the comprehensive management of Shiyang River Basin, thus having both scientific significance and practical significance.

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    The Classification of Salt Marsh Vegetation for Chongming Dongtan
    Nature Reserve Based on Knowledge Engineer
    Ayetiguli, ZHAO Shu-He, ZUO Ping, WANG Chun-Hong
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 123-126.   DOI: 10.6046/gtzyyg.2010.01.23
    Abstract   HTML   PDF (845KB) ( 1232 )

    This paper used Chongming Dongtan Nature Reserve as the research object for salt marsh vegetation classification based

    on Landsat TM image. According to such image preprocessing measures as image geometric correction and subset image and on the

    basis of analyses of Landsat TM remotely sensed images integrated with field survey and other studies of spatio-temporal dynamics

    of Chongming Dongtan Nature Reserve, this paper confirmed the species of the vegetation in this area. The authors used knowledge

    engineer to classify the vegetation, built knowledge base on the basis of vegetation spectral information and presented a

    vegetation classification method based on the spectral information. The overall precision of the vegetation classification method

    based on knowledge engineer is 92.35%, and the kappa coefficient is 0.907 2. The precision is higher than the overall precision

    of the vegetation classification based on unsupervised classification and supervised classification (maximum likelihood): the

    overall precisions of unsupervised classification and supervised classification are respectively 86.92% and 90.10%. The result

    shows that the vegetation classification method can classify and discriminate vegetation effectively and the precision is higher

    than that of other methods. The vegetation classification method provides a theoretical foundation and effective method for

    automatic extraction of vegetation.

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    The Application of RapidEye Satellite Images to 1∶50 000
    Remote Sensing Survey for Mine Exploitation
    LIU Zhi, HUANG Jie, SHAO Huai-Yong, JIANG Hua-Biao, PENG Bei, TIAN Li
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 127-129.   DOI: 10.6046/gtzyyg.2010.01.24
    Abstract   HTML   PDF (1228KB) ( 1117 )

    On the basis of remote sensing investigation and monitoring of multiple targets of mineral resources exploitation and

    with the RapidEye satellite images of the Hongge magnetite-Lala copper ore district as an example, the authors deeply studied the

    feasibility of the application of RapidEye satellite images in 1
    ∶50 000 remote sensing survey for mine exploitation. Viewed from the geometric correction accuracy,image composite processing

    and interpretation criteria of RapidEye satellite images, such images can meet the needs of 1∶50 000 remote sensing survey for

    mine exploitation and remarkably enhance the real time of 1∶50 000 remote sensing survey for mine exploitation.

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    GIS
    Tourism Planning Based on Google Earth Virtual Earth Platform
    LI Juan, HAO Zhi-Gang
    REMOTE SENSING FOR LAND & RESOURCES. 2010, 22 (1): 130-133.   DOI: 10.6046/gtzyyg.2010.01.25
    Abstract   HTML   PDF (877KB) ( 1204 )

    Based on virtual earth platform exemplified by Google Earth, this paper gives a tentative discussion on its application

    in such aspects as the preparation of tourism planning information, the survey and evaluation of tourism resources, the space-

    assisted analysis, the simplification of the 3D virtual roaming, the strengthening of new ideas of planning, and the

    collaboration of experts and public participation, in the hope of providing references for the use of tourism planning

    technology.

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