Abstract
A new concept dealing with digital analysis of loess terrain, slope spectrum, is presented and discussed in this paper, by introducing its characteristic, representation and extracting method from DEMs. Using 48 geomorphological units in different parts of the loess as test areas and 5 m-resolution DEMs as original test data, the quantitative depiction and spatial distribution of slope spectrum in China’s Loess Plateau have been studied on the basis of a series of carefully-designed experiments. In addition, initial experiment indicates a strong relationship between the slope spectrum and the loess landform types, displaying a potential importance of the slope spectrum in geomorphological studies. Based on the slope spectrums derived from the 25 m-resolution DEM data in whole loess terrain in northern part of Shaanxi, 13 slope spectrum indices were extracted and integrated into a comprehensive layer with image integration method. Based on that, a series of unsupervised classifications was applied in order to make a landform classification in northern Shaanxi Loess Plateau. Experimental results show that the slope spectrum analysis is an effective method in revealing the macro landform features. A continuous change of slope spectrum from south to north in northern Shaanxi Loess Plateau shows an obvious spatial distribution of different loess landforms. This also proves the great significance of the slope spectrum method in describing the terrain roughness and landform evolution as well as a further understanding on landform genesis and spatial distribution rule of different landforms in the Loess Plateau.
Similar content being viewed by others
References
Chen C K. Landform type and its evolution in south-eastern of east Gansu province. Acta Geogr Sin (in Chinese), 1956, 22(3): 223–231
Luo L X. A tentative classification of landforms in the Loess Plateau. Acta Geogr Sin (in Chinese), 1956, 22(3): 201–222
Luo S Y, Sun X, Chen Y Z. Physical Geography of the Loess Plateau (in Chinese). Xi’an: Shaanxi People’s Publishing House, 1998
Yang H R, Xu X J, Han T C. Geomorphology of the Loess Plateau of south-western Shanxi. Acta Geogr Sin (in Chinese), 1957, 23(1): 17–53
Qi Y N, Wang Z C. Geomorphology and new tectonic movement in the Guanzhong plain and south Loess Plateau of north Shaanxi Province. Acta Geogr Sin (in Chinese), 1959, 25(4): 286–298
Zhang Z H. Geomorphologic Map of the Loess Plateau, China (1:500,000) (in Chinese). Beijing: Geological Publishing House, 1986
Wu B F, Chen M R, Chen Z X, et al. The Loess Plateau of China (in Chinese). Xi’an: Shannxi People’s Publishing House, 1991
John P W, John C G. Terrain Analysis: Principles and Applications. New York: John Wiley & Sons, 2000
Tang G A, Liu X J, Lu G N. Principle and Methodology of Digital Elevation Model and Geo-analysis (in Chinese). Beijing: Science Press, 2005
Li Z L, Zhu Q. Digital Elevation Model (in Chinese). Wuhan: Wuhan University Press, 2001
Li Z L, Zhu Q, Gold C M. Digital Terrain Modeling: Principles and Methodology. Boca Raton: CRC Press, 2005
Richard J P. Geomorphometry—diversity in quantitative surface analysis. Prog Phys Geog, 2000, 24(1): 1–30
Hu P, Yang C Y, Wu Y L, et al. New Digital Elevation Model: Theory, Methodology, Standard and Application (in Chinese). Beijing: SinoMaps Press, 2007
Ke Z Y, He J B, Chi T H. Digital Terrain Model (in Chinese). Hefei: Chinese Science and Technology Press, 1992
Zhou Q M, Liu X J. Digital Terrain Analysis (in Chinese). Beijing: Science Press, 2006
Tang G A. A Research on the Accuracy of Digital Elevation Models. Beijing: Science Press, 2000
Adrian J F, Michael J G. Automatic DEM generation for Antarctic terrain. Photogramm Rec, 2001, 17(98): 275–290
Crosetto M. Calibration and validation of SAR interferometry for DEM generation. ISPRS J Photogramm, 2002, 57(3): 213–227
Florinsky I V. Errors of signal processing in digital terrain modeling. Int J Geogr Inf Sci, 2002, 16(5): 475–501
Gong J, Li Z L, Zhu Q, et al. Effect of various factors on the accuracy of DEMs: An intensive experimental investigation. Photogramm Eng Rem S, 2000, 66(9): 1113–1117
Shary P A, Sharaya L S, Mitusov A V. Fundamental quantitative methods of land surface analysis. Geoderma, 2002, 107(1–2): 1–32
Li Z L, Li C M. Objective generalization of DEM based on a natural principle. In: Proceedings of 2nd International Workshop on Dynamic and Multi-Dimensional GIS, 1999
Zhu Q, Zhao J, Zhong Z, et al. An efficient algorithm for the extraction of topographic structures from large scale grid DEMs. In: Li Z L, Zhou Q M, Kainz W, eds. Advances in Spatial Analysis and Decision Making. Netherland: Balkema, 2003. 99–107
Toutin T. Impact of terrain slope and aspect on radargrammetric DEM accuracy. ISPRS J Photogramm, 2002, 57(3), 228–240
Li F Y, Tang G A, Wang C, et al. Quantitative analysis and spatial distribution of slope spectrum—A case study in the Loess Plateau in north Shaanxi province. In: Chen J M, Pu Y X, eds. Proceedings or SPIE-Geoinformatics 2007: Geospatial Information Science. Bellingham: SPIE, 2007
Tang G A, Zhao M D, Li T W, et al. Simulation on slope uncertainty extracted from DEMs at different resolution levels: A case study in the Loess Plateau. J Geogr Sci, 2003, 13(4): 387–394
Lu G N, Qian Y D, Chen Z M. Automated extraction of the characteristic of topography from grid digital elevation data. Acta Geogr Sin (in Chinese), 1998, 53(6): 562–570
Lu G N, Qian Y D, Chen Z M. Study on automated mapping of channel network in hilly loess region. Acta Geod Carto Sin (in Chinese), 1998, 27(2): 131–137
Chen N, Wang Q M. Study on the relationship between the resolution and the slope extracted by DEM based on Single Grids. J China Univ Min Tech (in Chinese), 2007, 36(4): 499–504
Zhang C X, Yang Q K, Duan J J. Method for establishing high resolution digital elevation model. J Hydro Eng (in Chinese), 2007, 37(8): 1009–1014
Montgomery D R. Slope distributions, threshold hillslopes, and steady-state topography. Am J Sci, 2001, 301(4–5): 432–454
Wolinsky M A, Pratson L F. Constrain on landscape evolution from slope histograms. Geology, 2005, 33(6): 477–480
Smith D K, Shaw P R. Using topographic slope distributions to infer seafloor patterns. IEEE J Oceanic Eng, 1989, 14(4): 338–347
Burbank D W, Leland J, Fielding E, et al. Bedrock incision, rock uplift and threshold hillslopes in the northwestern Himalaysis. Nature, 1996, 379(8): 505–510
Iwahashi J S, Watanabeb S, Furuya T. Landform analysis of slope movements using DEM in Higashikubiki area, Japan. Comput Geosci-UK, 2001, 27(7): 851–865
Daniel G B, David P L, Kenneth A D. Supervised classification of types of glaciated landscapes using digital elevation data. Geomorphology, 1998, 21(3–4): 233–250
Tang G A, Liu A L, Li F Y, et al. DEM based research on the landform features of China. In: Gong J Y, Zhang J X, eds. Proceedings or SPIE — Geoinformatics 2006: Geospatial Information Science. Bellingham: SPIE, 2006
Liu Y, Wang Y X, Pan B T. A preliminary approach on the 3D presentation and quantitative analysis of planation surface. Geogr Res (in Chinese), 1999, 18(4): 391–399
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by the National Natural Science Foundation of China (Grant Nos. 40671148 and 40571120)
Rights and permissions
About this article
Cite this article
Tang, G., Li, F., Liu, X. et al. Research on the slope spectrum of the Loess Plateau. Sci. China Ser. E-Technol. Sci. 51 (Suppl 1), 175–185 (2008). https://doi.org/10.1007/s11431-008-5002-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11431-008-5002-9