| Technology and Methodology |
|
|
|
|
|
Zn Contamination Monitoring Model of Rice Based on ICA and Hyperspectral Index |
| LIN Ting, LIU Xiang-Nan, TAN Zheng |
| China University of Geosciences， Beijing 100083， China |
|
|
|
|
Abstract Zn contamination of rice with different concentrations of stress was identified by the remote sensing diagnosis method from the potential Hyperspectral index and the representative spectral reflectance. At the spectral index level, the authors systematically analyzed the responsive relationships of the Hyperspectral index and four important physiological parameters under the stress of Zn pollution，which include chlorophyll content， water content，cell structure and leaf area index. Through the experiments，the authors extracted Hyperspectral remote sensing indexes which reflect the change of ecological parameters and their interactive reglarity，thus establishing the three-dimensional identification model of Hyperspectral remote sensing indexes which reflect the change of Zn contamination. At the spectral reflectance level，spectral reflectance of representative bands in visible and near infrared spectral bands were decomposed using the method of independent component analysis (ICA)，and the independent components which reflect the change of Zn contamination concentration were found. Thus the visible-near infrared independent component space was established. Zn contamination with different concentrations exhibits different laws in the Hyperspectral index and independent component space，Zn contamination of rice with different concentrations can be determined combined with Hyperspectral index and independent component space，the reliability and sensitivity is improved.
|
| Keywords
Pipe-route selection
Remote sensing
Geographici Information system
Analytic Hierarchy Process
|
|
|
|
Issue Date: 17 June 2011
|
|
|
| ［1］项长兴,董雅文,钱君龙,等.南京栖霞山铅锌矿区土壤环境质量评价［J］.土壤，1993，25(6):319-323．［2］马向平,仙麦龙,吕录仕,等.重庆市酸沉降污染造成的植被受害状况遥感监测研究［J］.国土资源遥感，1997(4):14-20.［3］田国良，包佩丽，李建军，等.土壤中镉、铜伤害对水稻光谱特性的影响［J］.环境遥感，1990，5(2):140-149.［4］Knoke K，Marwood T M，Cassidy M B，et al.A Comparison of Five Bioassays to Monitor Toxicity During Bioremediation of Pentachlorophenol-contaminated Soil ［J］.Water，Air and Soil Pollution，1999，110:157-169.［5］Mishra A，Choudhurt M A.Monitoring of Phytotoxicity of Lead and Mercury from Germination and Early Seedling Growth Indices in Two Rice Cultivars［J］.Water，Air and Soil Pollution，1999，114:339-346.［6］MARS J C，CROWLEY J K.Mapping Mine Wastes and Analyzing Areas Affected by Selenium Rich Water Run Off in Southeast Idaho Using AVIRIS Imagery and Digital Elevation Data［J］.Remote Sensing of Environment，2003，84(3):422-436.［7］刘圣伟,甘甫平,王润生.用卫星高光谱数据提取德兴铜矿区植被污染信息［J］.国土资源遥感,2004(1):6-10．［8］迟光宇，刘新会，刘素红，等.Cu污染与小麦特征光谱相关关系研究［J］.光谱学与光谱分析，2006，26(7):1272-1276.［9］王秀珍，王人潮，黄敬峰.微分光谱遥感及其在水稻农学参数测定上的应用研究［J］.农业工程学报，2002，18(1):9-13.［10］Rouse J W，Haas R H，Schell J A，et al.Monitoring Vegetation Systems in the Great Plains with ERTS［C］//Proceedings of Third ERTS-1 Symposium.Washington：NASA SP-351，1973:309-317.［11］Daughtry C S，Walthall C L，Kim M S，et al.Estimating Corn Leaf Chlorophyll Concentration from Leaf and Canopy Reflectance［J］.Remote Sensing of Environment，2000，74(2):229-239.［12］Blackburn G A.Spectral Indices for Estimating Photosynthetic Pigment Concentrations:A Test Using Senescent Tree Leaves［J］.International Journal of RemoteSensing，1998，19(4):657－675．［13］Clark R N，Roush T L.Reflectance Spectroscopy:Quantitative Analysis Techniques for Remote Sensing Applications［J］.Journal of Geophysical Research，1984，89:6329-6340．［14］Ogunjemiyo S，Roberts D A，Keightley K，et al.Evaluating the Relationship Between AVIRIS Water Vapor and Popular Plantation Evapotranspiration［J］.Journal of Geophysical Research，2002，D107:ACL20.1-ACL20.15．［15］Gao B C.NDWI—A Normalized Difference Water Index for Remote Sensing of Vegetation Liquid Water from Space［J］.Remote Sensing of Environment，1996，58:257-266．［16］Penuelas J，Filella I，Elvira S，et al.Reflectance Assessment of Summer Ozone Fumigated Mediterranean White Pine Seedlings［J］.Environ Exp Bot，1995，35(3):299-307.［17］Gamon J A，Penuelas J，Field C B.A Narrow-wave Band Spectral Index that Tracks Diurnal Changes in Photosynthetic Efficiency［J］.Remote Sensing of Environment，1992，41：35-44.［18］Merton R，Huntington J.Early Simulation of the ARIES-1 Satellite Sensor for Multi-temporal Vegetation Research Derived from AVIRIS［J］.Summaries of the Eight JPL Airborne Earth Science Workshop，1999，99(17)：299-307．［19］Wiegand C，Anderson G，Lingle S，et al.Soil Salinity Effects on Crop Growth and Yield:Illustration of an Analysis and Mapping Methodology for Sugarcane［J］.Journal of Plant Physiology，1996，48(3-4):418-424．［20］Comon P.Independent Component Analysis——a New Concept［J］.Signal Processing，1994，36:287-314. |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2011,
Vol. 23
