最新刊期
      卷 ， 期 2 ， 1996
      • Issue 2, (1996) DOI: 10.11834/jrs.1996012
        摘要：This paper is focused on information recognizing method of structural framework and structural system.It introduces an applying clue and its impressions of basic method in image processing─convolution filter, and gives a quantitative method of remote sensing analysis for mineralized geological environment.According tothe quantitative result, a multidisciplinary evaluation model was created todiscriminate,to presume and to analyze the mineralized geological environment frommultiple geo-information supported by the GIS.We not only developed a preliminaryintegrative track and method from information recognizing to multidisciplinaryevaluation,but also gained quite good and efficient results in practical applications.  
        关键词：Mineralized geological environment;Information recognizing of remote sensing   
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      • Issue 2, (1996) DOI: 10.11834/jrs.1996010
        摘要：Monitoring with EXotech 100BX radiometer, the canopy leaf colors of different kinds of rice materials without mp fertilizer applications during their growing periods appear the variation rules of "blacks and yellows".’For late maturity rice material Wu Yu Jing No.2, its canopy leaf colors appearthe variation rules of "three blacks and three yellows". The processes for "threeblacks" are those from transplantation to the end of tillering stage, from cladophoredifferentiation stage to spikelet differentiation stage, and from pollen mother cell formation and meiosis stage to initial heading stage. The processes for three "yellows"are oboes from the end of tillering stage to cladophore differentiation stage, fromspikelet differentiation stage to pollen mother cell formation and meiosis stage, andfrom initial heading stage to grain filling stage.For intermediate maturity rice material Shan You 63, its canopy leaf colors appear the veriation rules of "two blacks and two yellows"’ The processes for "twoblacks" are those from transplantation to spikelet differentiation stage, and from pollen mother cell formation and meiosis stage to initial heading stage. The processes for"two yellows" are those from spikelet differentiation stage to pollen mother cell formation and meiosis stage, and from initial heading stage to grain filling stage.For early maturity rice material Ya You No.2, its canopy leaf colors appear theveriation rules of "one black and one yellow". The process for "one black" is fromtransplantation to spikelet differentiation stage and the process for "one yellow" isfrom spikelet differentiation stage to grain filling stage.  
        关键词：rice;Spectra-scan;Leaf colors;Variation rules   
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      • Issue 2, (1996) DOI: 10.11834/jrs.1996018
        摘要：This paper introduces a new method for atmospheric correction: BRDFAtmospheric correction Loop. Atmospheric correction was firstly performed by assuming that the groud is a Lambertian surface.By a series of corrected results of observed data Under different imaging geometric conditions,a model which can describethe most of these data was then found in the BRDF database.Finally,theatmospheric correction based on BRDF was carried out,according to the modellingparameters of the inversion. A number of experiments were designed,which haveproved the effectiveness and feasibility of this method.  
        关键词：Atmospheric correction;BRDF（Bi-directional Reflectance Distribution Function）;Lambertian;LAI （Leaf Area Index）   
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      • Issue 2, (1996) DOI: 10.11834/jrs.1996013
        摘要：This paper describes the spectral properties of remote sensing data andtypical subject. Four geometrical structure types of pixel are discussed in detail, andthe causes of single subject-multispectral single spectral-multisubject are analyzed. Bythese researches the individual-element multi-level classification has been drawn out.Under the support of DTM, the test results of Xiangyang pilot are excellent.  
        关键词：Land resources;Individual element classification;Modeling   
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      • Issue 2, (1996) DOI: 10.11834/jrs.1996015
        摘要：This paper introduces the method of remote sensing model for ecologicalchange monitoring and evaluation after forest fire.According to the investigation of regeneration and ecological change of Yunnan Pinus fire slashes by remote sensing inPanxi, it analyses spatial distribution and change regular of ecofactors and determinesmajor ecofactors and its evaluation criteria. Basing on remote sensing information andthe result of fuzzy synthetical evaluation to eight factors or topography soil,stand anddegree of deforestation and the years after forest fire, creats remote semsing model forecological change monitoring and evaluation after forest fire.This model makes usachieve expected purpose.For forest ecological dynamic monitoring system by remotesensing,it’s discussed that the data of monitoring factors and vegetation index areabtained.  
        关键词：Forest fire;Remote sensing;Ecological change;Monitoring Model   
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      • R.J.P.Lyon
        Issue 2, (1996) DOI: 10.11834/jrs.1996017
        摘要：Surface weathering produces coatings of mineral materials which may be similar to,or quite different from, the minerals of the underlying parent rock.There coating are usuallyonly microns to millimeters in thickness, but they completely control the reflectance spectra control the terrain. In a similar way coatings formed from adherence of wind-borne dusts, cemented or not, will also dominate the reflectance spectra as seen in remotely sensed ima gery. cemented coatings are often dark-colored （even black） and are usually termed "desert varnish" from their common occurrence in arid regions. Despite their featureless,dark colorto our eyes, there coatings （often days）,show characteristic reflectance minima in the shortwave infrared （SWIR） regions, by which their mineralogical composition can be deduced.Thus to relate remotely sensed imagery to actual ground "geology"requires a good knowledge of the surficial character of the exposed rock outcrops.It is not always possible to find"fresh" surfaces in the field,and one must always differentiate"upper-surface"spectra（andalso "lower-surface" spectra）from the spectra of the "inner rock"materials.This paper describes one of the major surface coatings which is on the weathered dolomite carbonate from the early Poleozoic sequences of easternmost California USA.  
          
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      • Issue 2, (1996) DOI: 10.11834/jrs.1996014
        摘要：This paper offers the means of assessing the Asian Elephant （Elephas maximusLinnaeus）’s habitat.Firstly, based on the field sampling invetigation, we use multivariateregression to quantitatively analyse the Asian elephant’s habitat factors.Secondly,throughthe interpretation of the aerophotos and TM data, the theme information of elephant’shabitat was obtained and the database of geographic information system for habitat wasestablished. Thirdly,we used the SUN workstation ARC/INFO software to evaluate the habitat quality of elephant in Mengyang nature reserve of Xishuangbanna.Lastly, we put forward some measures and suggestions to improve the elephant’s habitat to ensure the existence and propagation of Asian elephant.  
        关键词：Asian elephant（Elephas maximus Linnaeus）;Habitat;Sampling;remote sensing;Geographic information systems （GIS）   
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      • Issue 2, (1996) DOI: 10.11834/jrs.1996011
        摘要：This paper studies the geochemical and spectral information on the"silification"."lemonitization"."clayization".and "carbonatization"related to finedesseminated-type gold deposits in Qian Gui area.Four content factors are extracted on the basis of researching the rock-orecomposition; three TM band reflectance ratio factors are extracted on the basis ofresearching the rock-ore spectral features, and the alteration information are extractedthrough correlation analysis and image processing.  
        关键词：Wall-rock alteration;Fine-desseminated-type gold deposit;Geochemical information;Spectral chacateristic Information extraction;Qian Gin area   
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      • Issue 2, (1996) DOI: 10.11834/jrs.1996016
        摘要：Based on differential absorption method, remote sensing of atmospheric watervapour is discussed in the paper.The water-vapour transmissivity is measured by aspectral radiometer and the water vapour content is obtained by our calculationprogram of infrared-radiation atmospheric transmissivity. The meteorological parametersare observed simultaneously to determine the water vapour content in the path. The result shows that the calculated water vapour content agrees well with the measuredvalue.The correlation coefficient of regression equation is 0.97 and the RMS error is0.015g/cm2.Lastly,the error sources and the way to improve remote sensing accuracyare discussed and the necessity correcting the absorption of other molecule and theextinction of aerosol is indicated.  
        关键词：atmospheric water;infrared radiation;remote sensing   
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