气候变化领域集成服务门户(CCPortal): Peatland subsidence and vegetation cover degradation as impacts of the 2015 El niño event revealed by Sentinel-1A SAR data

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DOI	10.1016/j.jag.2019.101953
	Peatland subsidence and vegetation cover degradation as impacts of the 2015 El niño event revealed by Sentinel-1A SAR data
	Khakim M.Y.N.; Bama A.A.; Yustian I.; Poerwono P.; Tsuji T.; Matsuoka T.
发表日期	2020
ISSN	15698432
卷号	84
英文摘要	Indonesia has the world's largest tropical peatland, mostly located in the southern province of Sumatra, the south of Kalimantan, and Papua. The catastrophic fires between June and October 2015 induced by the El Niño event burnt most of these peatland areas. We analyzed spatio-temporal peat subsidence during pre- and post-fires in the peat hydrological unit of Sungai Sugihan – Sungai Saleh (KHGSS), South Sumatra using Sentinel-1 images by applying DInSAR-SBAS algorithm. Based on our analysis, the linear subsidence rate after the 2015 peat fires increased by a factor 6.4 compared to that of pre-fires. Generally, the estimated subsidence is temporally well-correlated with the precipitation variation. In addition, the subsidence patterns are spatially correlated with the hotspot distribution, peat thickness, and drainage networks. Furthermore, we mapped vegetation cover over the KHGSS by using the Sentinel-1 images as well. The results show that the vegetation degradation is correlated with the hotspot distribution and the highly-degraded vegetation associated with the 2015 peat fires. It demonstrated that the 2015 El Niño event has significant impacts on increasing the amount of the subsidence and the vegetation degradation in KHGSS area. © 2019
英文关键词	Degradation; Peatland fire; SAR; SBAS; Subsidence; Vegetation cover
语种	英语
scopus关键词	El Nino; environmental degradation; peatland; satellite data; Sentinel; subsidence; synthetic aperture radar; vegetation cover; Borneo; Indonesia; Kalimantan; Papua [(PRV) Indonesia]; South Sumatra
来源期刊	International Journal of Applied Earth Observation and Geoinformation
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156434
作者单位	Department of Physics, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Indonesia; International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Japan; Department of Earth Resources Engineering, Kyushu University, Japan; Fukada Geological Institute (FGI), Tokyo, Japan
推荐引用方式 GB/T 7714	Khakim M.Y.N.,Bama A.A.,Yustian I.,et al. Peatland subsidence and vegetation cover degradation as impacts of the 2015 El niño event revealed by Sentinel-1A SAR data[J],2020,84.
APA	Khakim M.Y.N.,Bama A.A.,Yustian I.,Poerwono P.,Tsuji T.,&Matsuoka T..(2020).Peatland subsidence and vegetation cover degradation as impacts of the 2015 El niño event revealed by Sentinel-1A SAR data.International Journal of Applied Earth Observation and Geoinformation,84.
MLA	Khakim M.Y.N.,et al."Peatland subsidence and vegetation cover degradation as impacts of the 2015 El niño event revealed by Sentinel-1A SAR data".International Journal of Applied Earth Observation and Geoinformation 84(2020).