[1]卡米拉,汤国安,杨 昕,等.陕北黄土高原地貌空间分形特征（英文）[J].南京师范大学学报(自然科学版),2020,43(02):56-62.[doi:10.3969/j.issn.1001-4616.2020.02.010]
　Kamila J Kabo-bah,Tang Guoan,Yang Xin,et al.Spatial Fractal Properties of Loess Plateauin the Northern Shaanxi Province of China[J].Journal of Nanjing Normal University(Natural Science Edition),2020,43(02):56-62.[doi:10.3969/j.issn.1001-4616.2020.02.010]
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陕北黄土高原地貌空间分形特征（英文）()
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《南京师范大学学报》（自然科学版）[ISSN:1001-4616/CN:32-1239/N]

卷:
第43卷
期数:
2020年02期
页码:
56-62
栏目:
·地理学·
出版日期:
2020-05-30

文章信息/Info

Title:
Spatial Fractal Properties of Loess Plateauin the Northern Shaanxi Province of China
文章编号:
1001-4616(2020)02-0056-07
作者:
卡米拉1; 2; 3; 汤国安1; 4; 杨 昕1; 5; 那嘉明4; 5; 熊礼阳1; 5
(1.南京师范大学地理科学学院,江苏 南京 210023)(2.能源与自然资源大学地球科学学院,加纳 苏尼亚尼 214)(3.能源与自然资源大学地球观测研究和创新中心,加纳 苏尼亚尼 214)(4.南京师范大学虚拟地理环境教育部重点实验室,江苏 南京 210023)(5.江苏省地理信息资源开发与利用协同创新中心,江苏 南京 210023)
Author(s):
Kamila J Kabo-bah1; 2; 3; Tang Guoan1; 4; Yang Xin1; 5; Na Jiaming4; 5; Xiong Liyang1; 5
(1.School of Geography,Nanjing Normal University,Nanjing 210023,China)(2.School of Geosciences,University of Energy and Natural Resources,Sunyani 214,Ghana)(3.Earth Observation Research and Innovation Centre(EORIC),University of Energy and Natural Resources,Sunyani 214,Ghana)(4.Key Laboratory of Virtual Geographic Environment of Ministry of Education,Nanjing Normal University,Nanjing 210023,China)(5.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China)
关键词:
数字高程模型; 格网大小; 分维数; Strahler 级数; 地貌类型
Keywords:
digital elevation model; grid size; fractal dimension; Strahler number; landform types
分类号:
P208
DOI:
10.3969/j.issn.1001-4616.2020.02.010
文献标志码:
A
摘要:
陕北黄土高原因其地貌类型既丰富又典型,是地貌研究的重要区域,已有不少关于本地区的地貌研究成果. 然而对分维值的空间分异及其与地貌特征之间的关系的认识还十分有限. 因此,本文评估了用分形方法探索地形和河网的分维特征的应用适宜性. 结果显示,计算分维值的窗口大小影响结果的空间分布特性. 当格网大小为32时是最适合黄土高原地区的分维值估算,其结果与其他研究展示的地貌分类一致. 网格大小分别为16和64时,会产生高估或低估分维值的结果. 对河网的分形研究表明,分维值与Strahler级数相关,河网级数越多,分维值越大. 河网结构的分形特征还有待进一步研究. 本文研究成果可为地貌特征和其他地区的分形研究提供参考.
Abstract:
The Loess Plateau of the Northern Shaanxi Province of China is an important area of research for geomorphological studies. Several studies have been conducted in the past in this particular subject of geomorphology. However,spatial variability of fractal dimension(FD)vis-à-vis its relationship with landform characteristics have been limited. Thus,the paper assessed the application of fractal methodology to investigate the fractal properties the terrain and stream networks. The results show that Grid Size(GS)for the FD estimation affects the distribution of the values obtained. It was recommended that for the Loess Plateau understudy,a GS of 32 was realistic and mimics well with the landform classification types provided by other studies. The GS of 16 and 64 underestimates and overestimates the FD respectively. The FD values for the stream networks indicate that Strahler Numbers(SN)and FD are related. For instance,the higher SN,the higher FD. However,a more in-depth analysis of the SN and FD needs to be conducted in future studies. The findings from this study could provide a baseline support for future research on geomorphology in the Loess Plateau and support for other regions interested in similar work.

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备注/Memo

备注/Memo:
Received data:2019-03-29.
Foundation item:Support by the National Natural Science Foundation of China(41930102,41771415),the Priority Academic Program Development of Jiangsu Higher Education Institutions(164320H116).
Corresponding author:Yang X
更新日期/Last Update: 2020-05-15