| Technology and Methodology |
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A Study of Automatical Information Extraction Method of Water-erosion Desertification |
| GE Jia1, ZHANG Zi-ming2, WU Cheng3, ZHAN Qian3, SUN Yong-jun4 |
1. China University of Geosciences, Wuhan 430074, China;
2. Northwest Bureau of China Metallurgical Geology Bureau, Xi’an 710119, China;
3. China University of Geosciences, Beijing 100083, China;
4. China Areo Geophysical Survey and Remote Sensing for Land and Resources, Beijing 100083, China |
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Abstract In this paper, part of the loess plateau was chosen as the study area. A set of automatic information extraction methods for water-erosion desertification was proposed by using the ETM+ images obtained in this area and on the basis of remote sensing data and geographic information system. NDVI (normalized difference vegetation index), KT3 (KT transform,humidity), slope, DEM (elevation) and typical feature spectral data were used to establish the characteristic bands of the study area, and then a decision tree classification rule could be constructed, which could exclude the non-water erosion desertificatin information effectively in the study area. The object-oriented muti-scale segmentation technology was adopted, and the slope, gully density and vegetation coverage were taken as the characteristic bands of the water-erosion desertification classification. With the building of the multi-characters space, the weight value was determined by the analytic hierarchy process, which also served as the classification index of the water-erosion desertification. The consistency of the evaluation between the automatic extraction results and the visual interpretation results shows a good linear relationship, with the overall consistency reaching 82.8%.
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| Keywords
rapid mapping
emergency-response-oriented
disaster thematic map
remote sensing
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Issue Date: 13 November 2012
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| [1] 王效科,欧阳志云,肖寒,等.中国水土流失敏感性分布规律及其区划研究[J].生态学报,2001,21(1):14-19.Wang X K, Ouyang Z Y, Xiao H, et al. Distribution and Division of Sensitivity to Water-caused Soil Loss in China[J]. Acta Ecologica Sinica, 2001, 21(1): 14-19(in Chinese with English Abstract).[2] 张宏,林先成,李世强.荒漠化评价指标体系的等级系统研究[J].四川师范大学学报:自然科学版,2005,28(3):358-361.Zhang H, Lin X C, Li S Q. Studies on Hierarchical System of Desertification Assessment Index System[J]. Journal of Sichuan Normal University: Natural Science Edition, 2005, 28(3): 358-361(in Chinese with English Abstract).[3] 吴波,苏志珠,杨晓晖,等.荒漠化监测与评价指标体系框架[J].林业科学研究,2005,18(4):490-496.Wu B, Su Z Z, Yang X H, et al. A Framework of Indicator System for Desertification Monitoring and Evaluation[J]. Forest Research, 2005, 18(4): 490-496(in Chinese with English Abstract).[4] 李秀彬,马志尊,姚孝友,等.北方土石山区水土流失现状与综合治理对策[J].中国水土保持科学,2008,6:9-15.Li X B, Ma Z Z, Yao X Y, et al. Current Status and Comprehensive Control Strategies of Soil Erosion for Rocky Mountain Areas in the Northern China[J]. Science of Soil and Water Conservation, 2008, 6(1): 9-15(in Chinese with English Abstract).[5] 中华人民共和国林业部防治沙漠化办公室.联合国关于在发生严重干旱和/或沙漠化的国家特别是在非洲防治沙漠化的公约[M].北京:中国林业出版社,1994.Combating Desertification of the People’s Republic of China Ministry of Forestry Office. Elaboration of an International Convention to Combat Desertification in Experiencing Serious Drought and or Desertification Particularly in Africa[M]. Beijing: China Forestry Publishing House, 1994(in Chinese).[6] 傅伯杰,汪西林.DEM在研究黄土丘陵沟壑区土壤侵蚀类型和过程中的应用[J].水土保持学报,1994,8(3):17-21.Fu B J, Wang X L. The Application of DEM in Studying Soil Erosion Type and Process in the Loess Hilly and Gully Area[J]. Journal of Soil and Water Conservation, 1994, 8(3): 17-21(in Chinese with English Abstract).[7] 陈志清.福建省长汀县河田镇的水蚀荒漠化及其治理[J].地理科学进展,1998,17(2):65-70.Chen Z Q. Desertification Induced by Water Erosion and its Combat of Hetian Town in Changding County, Fujian Province[J]. Journal of Progress in Geography, 1998, 17(2): 65-70(in Chinese with English Abstract).[8] 王建,董光荣,李文君,等.利用遥感信息决策树方法分层提取荒漠化土地类型的研究探讨[J].中国沙漠,2000,20(3):243-247.Wang J, Dong G R, Li W J, et al. Primary Study on the Multi-layer Remote Sensing Information Extraction of Desertification Land Types by Using Decision Tree Technology[J]. Journal of Desert Research, 2000, 20(3): 243-247(in Chinese with English Abstract).[9] 王香鸽,孙虎,李智佩,等."3S"技术在水蚀荒漠化研究中的应用[J].水土保持学报,2003,17(4):82-85.Wang X G, Sun H, Li Z P, et al. Waterpower Desertification in Loess Plateau Region by Using 3S Technology[J]. Journal of Soil and Water Conservation, 2003, 17(4): 82-85(in Chinese with English Abstract).[10] 黄土高原地区资源与环境遥感系列图编委会.黄土高原地区资源与环境遥感调查和系列制图研究[M].北京:地震出版社,1992.Resources and Environment Remote Sensing Series of Figure Editorial Board in Loess Plateau. Resources and Environmental Remote Sensing Investigation and a Series of Mapping Studies in the Loess Plateau[M]. Beijing: Seismological Press, 1992(in Chinese).[11] 周忠学,孙虎,李智佩.黄土高原水蚀荒漠化发生特点及其防治模式[J].干旱区研究,2005,22(1):29-34.Zhou Z X, Sun H, Li Z P. Study on Mechanism of Water-eroded Desertification and its Control in the Loess Plateau[J]. Arid Zone Research, 2005, 22(1): 29-34(in Chinese with English Abstract).[12] 高志海,魏怀东,丁峰.基于3S技术的荒漠化监测技术系统研究[J].遥感技术与应用,2002,17(6):330-336.Gao Z H, Wei H D, Ding F. Study on Desertification Monitoring System Based on Remote Sensing, GIS and GPS[J]. Remote Sensing Technology and Application, 2002, 17(6): 330-336(in Chinese with English Abstract).[13] 杨桄,刘湘南,张柏,等.基于多特征空间的遥感信息自动提取方法[J].吉林大学学报:地球科学版,2005,35(2):257-260.Yang G, Liu X N, Zhang B, et al. An Automatic Extraction Method of Remote Sensing Information Based on Multi-characters Space[J]. Journal of Jilin University: Earth Science Edition, 2005, 35(2): 257-260(in Chinese with English Abstract).[14] 汤国安,张友顺,刘咏梅,等.遥感数字图像处理[M].北京:科学出版社,2003.Tang G A, Zhang Y S, Liu Y M, et al. Remote Sensing Digital Image Processing[M]. Beijing: Science Press, 2003(in Chinese).[15] 陈云浩,冯通,史培军.基于面向对象和规则的遥感影像分类研究[J].武汉大学学报:信息科学版,2006,31(4):316-320.Chen Y H, Feng T, Shi P J, et al. Classification of Remote Sensing Image Based on Object Oriented and Class Rules[J]. Geomatics and Information Science of Wuhan University, 2006, 31(4): 316-320(in Chinese with English Abstract).[16] 孙永军,童庆禧,秦其明.利用面向对象方法提取湿地信息[J].国土资源遥感,2008(1):79-82.Sun Y J, Tong Q X, Qin Q M. The Object-oriented Method for Wetland Information Extraction[J]. Remote Sensing for Land and Resources, 2008, 19(1): 79-82(in Chinese with English Abstract).[17] 牛春盈,江万寿,黄先锋,等.面向对象影像信息提取软件Feature Analyst和eCognition的比较[J].遥感应用,2007,2:66-70.Niu C Y, Jiang W S, Huang X F, et al. Analysis and Comparison Between two Object-oriented Information Extraction Software of Feature Analyst and eCognition[J]. Remote Sensing Information, 2007(2): 66-70(in Chinese with English Abstract).[18] 汤国安,杨昕.ArcGIS地理信息系统空间分析实验教程[M].北京:科学出版社,2006.Tang G, Yang X. The Spatial Analysis Experimental Tutorial of a Geographic Information System Called ArcGIS[M]. Beijing: Science Press, 2006(in Chinese).[19] Saaty T L. The Analytical Hierarchy Process[M]. New York: McGraw-hill Company, 1980. |
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2012,
Vol. 24
