气候变化领域集成服务门户(CCPortal): Muddying the waters: Impacts of a bogflow on carbon transport and water quality

CCPortal

DOI	10.1016/j.catena.2024.107868
	Muddying the waters: Impacts of a bogflow on carbon transport and water quality
	Morton, Phoebe A.; Hunter, William Ross; Cassidy, Rachel; Doody, Donnacha; Atcheson, Kevin; Jordan, Phil
发表日期	2024
ISSN	0341-8162
EISSN	1872-6887
起始页码	238
卷号	238
英文摘要	Landslides of peat have been recorded throughout Britain and Ireland for centuries. Whilst these events are not uncommon, land degradation can amplify their magnitude and frequency and, crucially, their immediate impacts are rarely documented. A 20,000 m3 bogflow event that occurred on land undergoing development in the Irish border area in November 2020 was monitored at high frequency in the major receiving river system (384 km2). Samples collected every seven hours over a 28 day period at a site 37 km downstream were analysed for suspended sediment (SS), particulate organic carbon (POC) and dissolved organic carbon (DOC and UV-derived fractions), synchronous with hydrometeorological data and turbidity. There was no impact of the bogflow on DOC concentrations or loads. However, concentrations of SS and POC in the first samples after the bogflow were 825 mg/L and 346 mg C/L, respectively, and fish kill was estimated at 100 %. Analysis of detrended SS and POC loads suggested the main impacts of the bogflow on water quality lasted just eight days. Over this period, an additional 1318 t of SS and 608 t of POC were transported as far as the monitoring point, equating to 325 % more SS and 925 % more POC than would have been expected otherwise under the same river flow conditions. The carbon loss and water quality impacts were short lived, but nevertheless severe, and highlight the vulnerability of peatlands and the risks when these environments are inappropriately managed.
英文关键词	Peat; Landslide; Particulate organic carbon; Dissolved organic carbon; Suspended sediment; Ireland
语种	英语
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:001184081400001
来源期刊	CATENA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301023
作者单位	Agri-Food & Biosciences Institute; Agri-Food & Biosciences Institute; Ulster University
推荐引用方式 GB/T 7714	Morton, Phoebe A.,Hunter, William Ross,Cassidy, Rachel,et al. Muddying the waters: Impacts of a bogflow on carbon transport and water quality[J],2024,238.
APA	Morton, Phoebe A.,Hunter, William Ross,Cassidy, Rachel,Doody, Donnacha,Atcheson, Kevin,&Jordan, Phil.(2024).Muddying the waters: Impacts of a bogflow on carbon transport and water quality.CATENA,238.
MLA	Morton, Phoebe A.,et al."Muddying the waters: Impacts of a bogflow on carbon transport and water quality".CATENA 238(2024).