An Integrated Use of Topography with RSI in Gully Mapping, Shandong Peninsula, China
He, Fuhong1; Wang, Tao1; Gu, Lijuan2; Li, Tao3; Jiang, Weiguo4; Shao, Hongbo5,6; Wang, T (reprint author), Ludong Univ, Coll Geog & Planning, Yantai 264025, Peoples R China. wt641@163.com; shaohongbochu@126.com
2014
发表期刊SCIENTIFIC WORLD JOURNAL
ISSN1537-744X
页码827124
产权排序[He, Fuhong; Wang, Tao] Ludong Univ, Coll Geog & Planning, Yantai 264025, Peoples R China; [Gu, Lijuan] NAAU, Inst Syst Sci & Math, Yantai 264001, Peoples R China; [Li, Tao] Hubei Environm Sci Acad, Wuhan 430072, Peoples R China; [Jiang, Weiguo] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; [Shao, Hongbo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China; [Shao, Hongbo] Jiangsu Acad Agr Sci, Nanjing 210014, Peoples R China
摘要Taking the Quickbird optical satellite imagery of the small watershed of Beiyanzigou valley of Qixia city, Shandong province, as the study data, we proposed a new method by using a fused image of topography with remote sensing imagery (RSI) to achieve a high precision interpretation of gully edge lines. The technique first transformed remote sensing imagery into HSV color space from RGB color space. Then the slope threshold values of gully edge line and gully thalweg were gained through field survey and the slope data were segmented using thresholding, respectively. Based on the fused image in combination with gully thalweg thresholding vectors, the gully thalweg thresholding vectors were amended. Lastly, the gully edge line might be interpreted based on the amended gully thalweg vectors, fused image, gully edge line thresholding vectors, and slope data. A testing region was selected in the study area to assess the accuracy. Then accuracy assessment of the gully information interpreted by both interpreting remote sensing imagery only and the fused image was performed using the deviation, kappa coefficient, and overall accuracy of error matrix. Compared with interpreting remote sensing imagery only, the overall accuracy and kappa coefficient are increased by 24.080% and 264.364%, respectively. The average deviations of gully head and gully edge line are reduced by 60.448% and 67.406%, respectively. The test results show the thematic and the positional accuracy of gully interpreted by new method are significantly higher. Finally, the error sources for interpretation accuracy by the two methods were analyzed.; Taking the Quickbird optical satellite imagery of the small watershed of Beiyanzigou valley of Qixia city, Shandong province, as the study data, we proposed a new method by using a fused image of topography with remote sensing imagery (RSI) to achieve a high precision interpretation of gully edge lines. The technique first transformed remote sensing imagery into HSV color space from RGB color space. Then the slope threshold values of gully edge line and gully thalweg were gained through field survey and the slope data were segmented using thresholding, respectively. Based on the fused image in combination with gully thalweg thresholding vectors, the gully thalweg thresholding vectors were amended. Lastly, the gully edge line might be interpreted based on the amended gully thalweg vectors, fused image, gully edge line thresholding vectors, and slope data. A testing region was selected in the study area to assess the accuracy. Then accuracy assessment of the gully information interpreted by both interpreting remote sensing imagery only and the fused image was performed using the deviation, kappa coefficient, and overall accuracy of error matrix. Compared with interpreting remote sensing imagery only, the overall accuracy and kappa coefficient are increased by 24.080% and 264.364%, respectively. The average deviations of gully head and gully edge line are reduced by 60.448% and 67.406%, respectively. The test results show the thematic and the positional accuracy of gully interpreted by new method are significantly higher. Finally, the error sources for interpretation accuracy by the two methods were analyzed.
关键词Sediment Yield Loess Plateau Erosion Variability Threshold System
作者部门海岸带生物学与生物资源利用所重点实验室
学科领域Multidisciplinary Sciences
DOI10.1155/2014/827124
项目资助者Science & Technology - Other Topics
收录类别SCI
关键词[WOS]SEDIMENT YIELD ; LOESS PLATEAU ; EROSION ; VARIABILITY ; THRESHOLD ; SYSTEM
文章类型Article
语种英语
WOS研究方向Science & Technology - Other Topics
WOS记录号WOS:000343480500001
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/8569
专题海岸带生物学与生物资源利用所重点实验室
通讯作者Wang, T (reprint author), Ludong Univ, Coll Geog & Planning, Yantai 264025, Peoples R China. wt641@163.com; shaohongbochu@126.com
作者单位1.Ludong Univ, Coll Geog & Planning, Yantai 264025, Peoples R China
2.NAAU, Inst Syst Sci & Math, Yantai 264001, Peoples R China
3.Hubei Environm Sci Acad, Wuhan 430072, Peoples R China
4.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China
6.Jiangsu Acad Agr Sci, Nanjing 210014, Peoples R China
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He, Fuhong,Wang, Tao,Gu, Lijuan,et al. An Integrated Use of Topography with RSI in Gully Mapping, Shandong Peninsula, China[J]. SCIENTIFIC WORLD JOURNAL,2014:827124.
APA He, Fuhong.,Wang, Tao.,Gu, Lijuan.,Li, Tao.,Jiang, Weiguo.,...&shaohongbochu@126.com.(2014).An Integrated Use of Topography with RSI in Gully Mapping, Shandong Peninsula, China.SCIENTIFIC WORLD JOURNAL,827124.
MLA He, Fuhong,et al."An Integrated Use of Topography with RSI in Gully Mapping, Shandong Peninsula, China".SCIENTIFIC WORLD JOURNAL (2014):827124.
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