Li Zesen,Guang Huibing,Zhang Xinyu,et al.DEM Resolution Selection in the Yanhe River Basin Based on Topographic Scale Effect Curve and Information Entropy Theory[J].Research of Soil and Water Conservation,2024,31(04):42-49,58.[doi:10.13869/j.cnki.rswc.2024.04.026]
基于尺度效应曲线及信息熵的延河流域适宜DEM分辨率判定
- Title:
- DEM Resolution Selection in the Yanhe River Basin Based on Topographic Scale Effect Curve and Information Entropy Theory
- 文章编号:
- 1005-3409(2024)04-0042-08
- Keywords:
- DEM; resolution; basin topographic parameters; information entropy; mutual information entropy; Yanhe River Basin
- 分类号:
- P208
- 文献标志码:
- A
- 摘要:
- [目的]确定黄土高原小流域地貌水文研究需要下的适宜DEM分辨率,探究尺度效应曲线和信息熵方法适用度,并为判定适宜分辨率提供新视角和新途径。[方法]以黄土丘陵沟壑区的延河流域为研究区,利用ArcGIS对原分辨率DEM进行重采样,获取多组不同分辨率DEM,并提取相应尺度下地形属性值,绘制两种不同的尺度效应曲线(“平均坡度-分辨率”和“局部方差均值-分辨率”曲线),并引入信息熵和互信息熵,结合实际地形,对适宜DEM分辨率进行了判别。[结果](1)在地形复杂的延河流域,基于不同判定方法所获结果有所不同,而局部方差均值、信息熵及互信息熵所获适宜分辨率结果相近。(2)采用不同地形属性判别适宜分辨率结果有所不同,剖面曲率和平面曲率所获适宜分辨率较为相近(局部方差均值结果为15～20 m,信息熵和互信息熵结果均为15 m),坡度较曲率所获适宜分辨率差异更大(局部方差均值结果为20～35 m,信息熵和互信息熵结果均为20 m)。[结论]局部方差均值和信息熵均适用于该地区的DEM分辨率判定,延河流域适宜DEM分辨率为15～20 m。
- Abstract:
- [Objective]The aims of this study are to determine the appropriate DEM resolution for geomorphic hydrology research in a small watershed of the Loess Plateau, explore the applicability of scale effect curve and information entropy method, and provide a new perspective and approach for determining the appropriate resolution. [Methods]Taking Yanhe River Basin in the loess hilly region as the research area, ArcGIS was used to resample the original resolution DEM, obtain multiple groups of DEM with different resolutions, extract the terrain attribute values at corresponding scales, and draw two different scale effect curves(‘average slope-resolution'and‘local variance mean-resolution'curves). Information entropy and mutual information entropy are introduced to distinguish suitable DEM resolution based on actual terrain. [Results](1)In the Yanhe River Basin with complex terrain, the results obtained by different determination methods are different, while the results of local variance mean, information entropy and mutual information entropy are similar.(2)The results of determining the appropriate resolution by different terrain attributes are different. The appropriate resolution obtained by profile curvature and plane curvature is similar(the local mean variance is 15～20 m, and the information entropy and mutual information entropy are both 15 m), and the difference of the appropriate resolution obtained by slope is greater than that obtained by curvature(the local mean variance is 20～35 m). The results of information entropy and mutual information entropy are both 20 m. [Conclusion]Both local variance mean and information entropy method are suitable for DEM resolution determination in this area, and the appropriate DEM resolution in Yanhe River Basin is 15～20 m.
参考文献/References:
[1]杨颖楠,李子夫,刘梦云,等.基于不同分辨率DEM的永寿县地形信息差异分析[J].水土保持研究,2018,25(6):131-136.
Yang Y N, Li Z F, Liu M Y, et al. Analysis of topographic differences of Yongshou County based on different resolutions of DEM[J]. Research of Soil and Water Conservation, 2018,25(6):131-136.
[2]胡璐锦,王亮,陶坤旺.DEM内插算法对区域坡长提取的影响分析:以陕北黄土丘陵区为例[J].干旱区资源与环境,2013,27(10):169-175.
Hu L J, Wang L, Tao K W. Effect of DEM interpolation on the slope length extraction[J]. Journal of Arid Land Resources and Environment, 2013,27(10):169-175.
[3]吴险峰,刘昌明,王中根.栅格DEM的水平分辨率对流域特征的影响分析[J].自然资源学报,2003,18(2):148-154,258.
Wu X F, Liu C M, Wang Z G. Effect of horizontal resolution of raster DEM on drainage basin characteristics[J]. Journal of Natural Resources, 2003,18(2):148-154,258.
[4]沈俊杰,常宏,唐倩玉,等.汇流阈值对提取叶尔羌河上游流域面积高程积分的影响[J].地球环境学报,2021,12(4):402-410.
Shen J J, Chang H, Tang Q Y, et al. Influence of confluence threshold on extracting hypsometric integral of Upper Yarkant Basin[J]. Journal of Earth Environment, 2021,12(4):402-410.
[5]高超,金高洁.SWIM水文模型的DEM尺度效应[J].地理研究,2012,31(3):399-408.
Gao C, Jin G J. Effects of DEM resolution on results of the SWIM hydrological model in the Changtaiguan basin[J]. Geographical Research, 2012,31(3):399-408.
[6]Pradhan N R, Tachikawa Y, Takara K. A downscaling method of topographic index distribution for matching the scales of model application and parameter identification[J]. Hydrological Processes, 2006,20(6):1385-1405.
[7]郭伟玲,樊宇,杨勤科.基于不同分辨率DEM提取坡长的统计分布[J].水土保持研究,2019,26(3):72-76,85.
Guo W L, Fan Y, Yang Q K. Statistical distribution of slope length derived from DEM with different spatial resolutions[J]. Research of Soil and Water Conservation, 2019,26(3):72-76,85.
[8]Wu S, Li J, Huang G H. Modeling the effects of elevation data resolution on the performance of topography:Based watershed runoff simulation[J]. Environmental Modelling & Software, 2007,22(9):1250-1260.
[9]刘学军,王彦芳,晋蓓,等.顾及数据特性的格网DEM分辨率计算[J].地理研究,2010,29(5):852-862.
Liu X J, Wang Y F, Jin B, et al. Resolution analysis of grid digital elevation model based on data property[J]. Geographical Research, 2010,29(5):852-862.
[10]Yang Q K, McVicar T R, Van Niel T G, et al. Improving a digital elevation model by reducing source data errors and optimising interpolation algorithm parameters:An example in the Loess Plateau, China[J]. International Journal of Applied Earth Observation and Geoinformation, 2007,9(3):235-246.
[11]Smith M P, Zhu A X, Burt J E, et al. The effects of DEM resolution and neighborhood size on digital soil survey[J]. Geoderma, 2006,137(1/2):58-69.
[12]何珊,王春梅,杨勤科.1:50000 DLG建立DEM适宜栅格尺寸的确定[J].山地学报,2017,35(4):572-579.
He S, Wang C M, Yang Q K. Optimizing cellsize for DEM generation with 1:50000 DLG[J]. Mountain Research, 2017,35(4):572-579.
[13]江娜,陈超,韩海丰.海岸带地类统计模型中DEM空间尺度优选方法[J].自然资源遥感,2022,34(1):34-42.
Jiang N, Chen C, Han H F. An optimization method of DEM resolution for land type statistical model of coastal zones[J]. Remote Sensing for Natural Resources, 2022,34(1):34-42.
[14]焦菊英,王志杰,魏艳红,等.延河流域极端暴雨下侵蚀产沙特征野外观测分析[J].农业工程学报,2017,33(13):159-167.
Jiao J Y, Wang Z J, Wei Y H, et al. Characteristics of erosion sediment yield with extreme rainstorms in Yanhe Watershed based on field measurement[J]. Transactions of the Chinese Society of Agricultural Engineering, 2017,33(13):159-167.
[15]姚静,薛超玉,焦峰.基于Landsat8 OLI遥感影像的延河流域土壤水分反演研究[J].草地学报,2018,26(5):1109-1117.
Yao J, Xue C Y, Jiao F. Soil moisture retrieval based on Landsat8 OLI image data in the Yanhe River basin[J]. Acta Agrestia Sinica, 2018,26(5):1109-1117.
[16]中华人民共和国水利部.土壤侵蚀分类分级标准SL190—2007[S].北京:中国水利水电出版社,2008.
Ministry of Water Resources of the People's Republic of China. Standards for Classification and Gradation of Soil Erosion SL190—2007[S]. Beijing:China Water & Power Press, 2008.
[17]王雷,杨勤科,龙永清,等.基于全数字摄影测量数据建立DEM时分辨率的确定[J].水土保持通报,2013,33(5):152-155,195.
Wang L, Yang Q K, Long Y Q, et al. Determining DEMs' resolution with digital photogrammetric data[J]. Bulletin of Soil and Water Conservation, 2013,33(5):152-155,195.
[18]秦承志,呼雪梅.栅格数字地形分析中的尺度问题研究方法[J].地理研究,2014,33(2):270-283.
Qin C Z, Hu X M. Review on scale-related researches in grid-based digital terrain analysis[J]. Geographical Research, 2014,33(2):270-283.
[19]呼雪梅,秦承志.地形信息对确定DEM适宜分辨率的影响[J].地理科学进展,2014,33(1):50-56.
Hu X M, Qin C Z. Effects of different topographic attributes on determining appropriate DEM resolution[J]. Progress in Geography, 2014,33(1):50-56.
[20]Drgu �瘙 塅 L, Eisank C, Strasser T. Local variance for multi-scale analysis in geomorphometry[J]. Geomorphology, 2011,130(3/4):162-172.
[21]Shary P A, Sharaya L S, Mitusov A V. Fundamental quantitative methods of land surface analysis[J]. Geoderma, 2002,107(1/2):1-32.
[22]Gaur N, Mohanty B P. Evolution of physical controls for soil moisture in humid and subhumid watersheds[J]. Water Resources Research, 2013,49(3):1244-1258.
[23]Pan F, Pachepsky Y A, Guber A K, et al. Scale effects on information theory-based measures applied to streamflow patterns in two rural watersheds[J]. Journal of Hydrology, 2012,414:99-107.
[24]高浩然,周勇,刘甲康,等.基于信息熵的耕地土壤养分与环境影响因子空间相关性研究[J].水土保持通报,2021,41(6):226-236.
Gao H R, Zhou Y, Liu J K, et al. Spatial correlation between soil nutrients and environmental factors in cultivated land based on information entropy[J]. Bulletin of Soil and Water Conservation, 2021,41(6):226-236.
[25]Wolock D M, McCabe G J. Differences in topographic characteristics computed from 100- and 1000- m resolution digital elevation model data[J]. Hydrological Processes, 2000,14(6):987-1002.
[26]杨勤科,贾大韦,李锐,等.基于DEM的坡度研究:现状与展望[J].水土保持通报,2007,27(1):146-150.
Yang Q K, Jupp D, Li R, et al. Researches on DEM derived slope:A review and prospective[J]. Bulletin of Soil and Water Conservation, 2007,27(1):146-150.
[27]刘学军,龚健雅,周启鸣,等.基于DEM坡度坡向算法精度的分析研究[J].测绘学报,2004,33(3):258-263.
Liu X J, Gong J Y, Zhou Q M, et al. A study of accuracy and algorithms for calculating slope and aspect based on grid digital elevation model(DEM)[J]. Acta Geodaetica et Cartographica Sinica, 2004,33(3):258-263.
[28]罗为东,甘淑,袁希平,等.基于UAV高分辨率DEM的复杂微地貌形态特征分析:以恐龙谷南缘山区为例[J].中国水土保持科学(中英文),2022,20(5):109-117.
Luo W D, Gan S, Yuan X P, et al. Morphological characterization of complex micro-landscapes based on UAV high-resolution DEM:Take the mountainous area on the southern rim of Dinosaur valley as an example[J]. Science of Soil and Water Conservation, 2022,20(5):109-117.
[29]陈楠,王钦敏.基于地形因子信息量的数字高程模型分辨率的选择:以黄土高原的研究为例[J].武汉大学学报:信息科学版,2009,34(6):692-695,705.
Chen N, Wang Q M. Selection of DEM resolutions based on the information amount of terrain factors:A case study of Loess Plateau area[J]. Geomatics and Information Science of Wuhan University, 2009,34(6):692-695,705.
相似文献/References:
[1]李忠武,黄金权,李裕元,等.基于GIS的南方红壤丘陵区小流域汇流网络提取研究[J].水土保持研究,2009,16(06):84.
LI Zhong-wu,HUANG Jin-quan,LI Yu-yuan,et al.Extraction of Drainage Structure for a Small Watershed in the Red Soil Regions in Southern China Based on GIS[J].Research of Soil and Water Conservation,2009,16(04):84.
[2]任希岩,张雪松,郝芳华,等.DEM分辨率对产流产沙模拟影响研究[J].水土保持研究,2004,11(01):1.
REN Xi-yan,ZHANG Xue-song,HAO Fang-hua,et al.Effects of DEM Resolutions on Simulated Runoff and Sediment Yields[J].Research of Soil and Water Conservation,2004,11(04):1.
[3]史明昌,沈晶玉.不同地貌起伏状况下网格尺寸与DEM精度关系研究[J].水土保持研究,2006,13(03):35.
SHI Ming-chang,SHEN Jing-yu.Studies on the Relations Between the Grids Size of Various Undulate Landforms and the Accuracy of DEM[J].Research of Soil and Water Conservation,2006,13(04):35.
[4]尹黎明,姜小三,胡续礼,等.DEM构建过程质量控制[J].水土保持研究,2006,13(03):99.
YIN Li-ming,JIANG Xiao-san,HU Xu-li,et al.Quality Control During Building DEM[J].Research of Soil and Water Conservation,2006,13(04):99.
[5]沈晶玉,史明昌.DEM网格尺寸对地形因子影响研究——以北京市延庆县八达岭小流域为例[J].水土保持研究,2006,13(05):66.
SHEN Jing-yu,SHI Ming-chang.Studies of the Influences from the Size of DEM Grids on Topographical Factors——Take the Badaling Watershed of Yanqing Beijing as an Example[J].Research of Soil and Water Conservation,2006,13(04):66.
[6]周晓乐,张清.利用DEM数字高程模型计算坡度的差异性分析[J].水土保持研究,2006,13(06):145.
ZHOU Xiao-le,ZHANG Qing.Analysis of the Diversity Using DEM Numeral Elevation Model Calculating Declivity[J].Research of Soil and Water Conservation,2006,13(04):145.
[7]吴根梅,朱清科.ADO技术在无限流向法实现中的应用[J].水土保持研究,2007,14(02):164.
WU Gen-mei,ZHU Qing-ke.The Application of ADO in Implying Deterministic Infinite Algorithm[J].Research of Soil and Water Conservation,2007,14(04):164.
[8]李豪,文安邦,张信宝.利用DEM模型求算磨西台地堆积物体积[J].水土保持研究,2007,14(04):77.
LI Hao,WEN An-bang,ZHANG Xin-bao.Volume Computation of the Moxi Platform Base on DEM[J].Research of Soil and Water Conservation,2007,14(04):77.
[9]刘利峰,毕华兴.吉县蔡家川小流域水文响应相似性研究[J].水土保持研究,2008,15(04):161.
LIU Li-feng,BI Hua-xing.Research on the Hydrological Comparability of the Caijiachuan Small Watershed in Ji County of Shanxi Province[J].Research of Soil and Water Conservation,2008,15(04):161.
[10]黄东锋,郑祥民,周立旻,等.基于DEM的抚仙湖流域土壤侵蚀综合分析[J].水土保持研究,2009,16(04):76.
HUANG Dong-feng,ZHENG Xiang-min,ZHOU Li-min,et al.Comprehensive Analysis of the Soil Erosion in Fuxian Lake Basin Based on DEM[J].Research of Soil and Water Conservation,2009,16(04):76.
备注/Memo
收稿日期:2023-09-06 修回日期:2023-09-18
资助项目:国家自然科学基金“黄土丘陵区土壤斥水性及其对降水入渗机制的影响研究”(41977426)
第一作者:李泽森(1999—),男,陕西汉阴人,硕士研究生,研究方向为水土保持效益评价。E-mail:15594537278@nwafu.edu.cn
通信作者:焦峰(1967—),男,陕西三原人,博士,研究员,主要从事GIS应用和水土保持与环境效应监测评价研究。E-mail:Jiaof@nwsuaf.edu.cn