Knowledge Resource Center for Ecological Environment in Arid Area
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). |
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