Do reconstructed landforms have multifractal characteristics? A case study at an opencast coalmine dump in the loess area of China

doi:10.1016/j.catena.2020.104925

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Do reconstructed landforms have multifractal characteristics? A case study at an opencast coalmine dump in the loess area of China
	Feng, Yu 1; Wang, Jinman 1,2; Zhang, Li 1; Bai, Zhongke 1,2; Sun, Hui 3
刊名	CATENA
	2021
卷号	196 页码:11
关键词	Reconstructed landform Opencast coal mine Multifractal Revegetation
ISSN号	0341-8162
DOI	10.1016/j.catena.2020.104925
通讯作者	Wang, Jinman(wangjinman@cugb.edu.cn)
英文摘要	Opencast coal mining causes large changes in landform. The geomorphological features of the reconstructed landform have not been fully understood in the loess area. To quantify the characteristics of the reconstructed landform, multifractal analysis and Principal Component Analysis (PCA) were applied to classify three soil dumps, located at the Antaibao opencast coalmine in China. Most parts of the reconstructed soil dumps had multifractal characteristics. Multifractal parameters reflected heterogeneity of the reconstructed landform from surface relief, regularity and variance in elevation, and the results of PCA further provided a good explanation of the differences and similarities among the three soil dumps. Sub-areas of the South Dump (S-1, S-2, S-3, and S-4) were clustered together and this grouping was explained by relatively high D(0), a(max) and D(q)(min), whereas subareas of the remaining dumps were sparsely distributed. Long-term restoration and soil erosion may cause the homogenization of the reconstructed landform. Moreover, multifractal parameters, D(q)(min), D(0), D(1), D(2), a(min) and f(a(min)) were significantly correlated with Normalized Difference Vegetation Index (NDVI), suggesting susceptibility of the restored vegetation to landform development. Therefore, to improve revegetation practice, micro-topographic measures and silviculture technology are both needed in post-mining areas. The micro-geomorphological patterns could not only improve the efficiency of water use, but also provide a basis for the evolution of geomorphological research in the loess area of China.
资助项目	National Natural Science Foundation of China[41877532] ; National Natural Science Foundation of China[41271528] ; Fundamental Research Funds for the Central Universities of China[2652015179] ; Fundamental Research Funds for the Central Universities of China[2652015336]
WOS关键词	VEGETATION STRUCTURE ; RECLAIMED LAND ; AVHRR-NDVI ; SOIL ; DISTRIBUTIONS ; PLATEAU ; FOREST ; MICROTOPOGRAPHY ; DIVERSITY ; ECOSYSTEM
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000583955200073
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/15621]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Wang, Jinman
作者单位	1.China Univ Geosci, Sch Land Sci & Technol, 29 Xueyuan Rd, Beijing 100083, Peoples R China 2.Minist Nat Resources, Key Lab Land Consolidat & Rehabil, Beijing 100035, Peoples R China 3.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Feng, Yu,Wang, Jinman,Zhang, Li,et al. Do reconstructed landforms have multifractal characteristics? A case study at an opencast coalmine dump in the loess area of China[J]. CATENA,2021,196:11.
APA	Feng, Yu,Wang, Jinman,Zhang, Li,Bai, Zhongke,&Sun, Hui.(2021).Do reconstructed landforms have multifractal characteristics? A case study at an opencast coalmine dump in the loess area of China.CATENA,196,11.
MLA	Feng, Yu,et al."Do reconstructed landforms have multifractal characteristics? A case study at an opencast coalmine dump in the loess area of China".CATENA 196(2021):11.