干旱区生态环境知识资源中心(Arid): Quantifying the spatiotemporal characteristics of multi-dimensional karst ecosystem stability with Landsat time series in southwest China

Arid

DOI	10.1016/j.jag.2021.102575
	Quantifying the spatiotemporal characteristics of multi-dimensional karst ecosystem stability with Landsat time series in southwest China
	Huang, Zhi; Liu, Xiangnan; Yang, Qin; Meng, Yuanyuan; Zhu, Lihong; Zou, Xinyu
通讯作者	Liu, XN (corresponding author), China Univ Geosci, Sch Informat Engn, Beijing 100083, Peoples R China.
来源期刊	INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
ISSN	1569-8432
EISSN	1872-826X
出版年	2021
卷号	104
英文摘要	Large-scale quantification of ecosystem stability in multiple dimensions is crucial to understanding underlying ecological processes and informing ecological management decision-making. However, historically this field has been limited to spatiotemporal scales based on the use of discrete ground-based measurements. The objective of this study was to quantify ecosystem stability in multiple dimensions in a karst peak cluster depression region in southwest China, using dense Landsat time series from 1988 to 2018. Three components of ecosystem stability, namely resistance, resilience, and variability, were derived by applying a time decomposition algorithm, and then the correlations of each component were analyzed to explore the dimensionality of ecosystem stability. Our results revealed following: (1) of the entire karst area, 87.97% of the pixels were disturbed in the past 31 years, the majority of the maximum disturbance events occurred during 2004 in the northeast and mid-west of Guangxi. (2) Only 0.03% of the pixels showed high resistance, whereas a wide part of the study area showed low resilience, with 72.95 % of the pixels had low recovery rate and 39.27% of the pixels being able to be restored to their original state after the disturbance. The south area showed lower variance compared to other areas in karst regions. (3) Correlations between different ecosystem stability indicators obtained from dense remote sensing time series were only weakly correlated or uncorrelated, which provided satellite-scale evidence that it is necessary to conduct a multi-dimensional evaluation of ecosystem stability, and the effective dimensionalities of ecosystem stability were significantly influenced by different disturbance intensities. These findings expand the understanding of the internal self-maintenance and self-recovery of the ecosystem in response to disturbances, and provide a theoretical basis for ecological engineering construction and regional environmental governance assessment.
英文关键词	Multidimensional ecosystem stability Dense Landsat time series Quantitative analysis STL Karst ecosystem
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000711058600002
WOS关键词	REFLECTANCE MODEL INVERSION ; SPECTRAL VEGETATION INDEXES ; ROCKY DESERTIFICATION ; RESILIENCE ; RECOVERY ; COVER ; BIODIVERSITY ; COMPLEXITY ; UTILITY ; DISTURBANCE
WOS类目	Remote Sensing
WOS研究方向	Remote Sensing
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368110
作者单位	[Huang, Zhi; Liu, Xiangnan; Yang, Qin; Zhu, Lihong; Zou, Xinyu] China Univ Geosci, Sch Informat Engn, Beijing 100083, Peoples R China; [Huang, Zhi] Hengyang Normal Univ, Coll Geog & Tourism, Hengyang 421002, Peoples R China; [Meng, Yuanyuan] Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Key Lab Earth Surface Proc,Minist Educ, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Huang, Zhi,Liu, Xiangnan,Yang, Qin,et al. Quantifying the spatiotemporal characteristics of multi-dimensional karst ecosystem stability with Landsat time series in southwest China[J]. 北京大学,2021,104.
APA	Huang, Zhi,Liu, Xiangnan,Yang, Qin,Meng, Yuanyuan,Zhu, Lihong,&Zou, Xinyu.(2021).Quantifying the spatiotemporal characteristics of multi-dimensional karst ecosystem stability with Landsat time series in southwest China.INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,104.
MLA	Huang, Zhi,et al."Quantifying the spatiotemporal characteristics of multi-dimensional karst ecosystem stability with Landsat time series in southwest China".INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION 104(2021).