Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau
Global warming and intensified climate variability have greatly affected Earth's surface processes and continental sediment evacuation. River suspended sediment is a sensitive indicator for tracing seasonal surface erosion, but details of the rates of sediment generation and evacuation, and the...
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ftchinacascieeca:oai:ir.ieecas.cn:361006/17171 2023-06-11T04:15:54+02:00 Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau Zhang, Fei Hu, Yadan Fan, Xuanmei Yu, Wenlong Liu, Xingxing Jin, Zhangdong 2022-02-01 http://ir.ieecas.cn/handle/361006/17171 https://doi.org/10.1016/j.catena.2021.105797 英语 eng ELSEVIER CATENA http://ir.ieecas.cn/handle/361006/17171 doi:10.1016/j.catena.2021.105797 Suspended sediment yield Seasonal variation Freeze-thaw process Global warming Surface erosion SUSPENDED SEDIMENT FREEZE-THAW CLIMATE-CHANGE GANGOTRI GLACIER PERMAFROST DEGRADATION GARHWAL HIMALAYA LOESS PLATEAU YELLOW-RIVER CATCHMENT TRANSPORT Geology Agriculture Water Resources Geosciences Multidisciplinary Soil Science 期刊论文 2022 ftchinacascieeca https://doi.org/10.1016/j.catena.2021.105797 2023-05-08T13:25:29Z Global warming and intensified climate variability have greatly affected Earth's surface processes and continental sediment evacuation. River suspended sediment is a sensitive indicator for tracing seasonal surface erosion, but details of the rates of sediment generation and evacuation, and their connections with nowadays warming climate are not entirely clear, particularly in Tibet and other high-altitude areas where field observations remain scarce. Here, we investigate daily to seasonal river sediment transport dynamics between the cold, permafrost-dominated northeastern Tibetan Plateau and warm, non-permafrost Sichuan and Taiwan regions. Our results show that at a given river water discharge, greater river suspended sediment was evacuated during the pre-monsoon season (April-Mid June) relative to other seasons in the cold NE Tibetan catchments. In contrast, no such phenomenon was observed in the warm, non-permafrost regions. These comparisons likely indicate a center role of freeze-thaw processes on loose sediment generation, which enhanced sediment output. Hydmmeteorological records show up to similar to 2 degrees C warming in the NE Tibetan Plateau since the past 30 years, coupled with an 8-fold increase in sediment transport. We suggest that continuous warming climate may further accelerate sediment and soil carbon release in the Tibetan Plateau and other global permafrost-dominated areas, which in turn influences climate feedback. Report permafrost Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) CATENA 209 105797 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
Suspended sediment yield Seasonal variation Freeze-thaw process Global warming Surface erosion SUSPENDED SEDIMENT FREEZE-THAW CLIMATE-CHANGE GANGOTRI GLACIER PERMAFROST DEGRADATION GARHWAL HIMALAYA LOESS PLATEAU YELLOW-RIVER CATCHMENT TRANSPORT Geology Agriculture Water Resources Geosciences Multidisciplinary Soil Science |
spellingShingle |
Suspended sediment yield Seasonal variation Freeze-thaw process Global warming Surface erosion SUSPENDED SEDIMENT FREEZE-THAW CLIMATE-CHANGE GANGOTRI GLACIER PERMAFROST DEGRADATION GARHWAL HIMALAYA LOESS PLATEAU YELLOW-RIVER CATCHMENT TRANSPORT Geology Agriculture Water Resources Geosciences Multidisciplinary Soil Science Zhang, Fei Hu, Yadan Fan, Xuanmei Yu, Wenlong Liu, Xingxing Jin, Zhangdong Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau |
topic_facet |
Suspended sediment yield Seasonal variation Freeze-thaw process Global warming Surface erosion SUSPENDED SEDIMENT FREEZE-THAW CLIMATE-CHANGE GANGOTRI GLACIER PERMAFROST DEGRADATION GARHWAL HIMALAYA LOESS PLATEAU YELLOW-RIVER CATCHMENT TRANSPORT Geology Agriculture Water Resources Geosciences Multidisciplinary Soil Science |
description |
Global warming and intensified climate variability have greatly affected Earth's surface processes and continental sediment evacuation. River suspended sediment is a sensitive indicator for tracing seasonal surface erosion, but details of the rates of sediment generation and evacuation, and their connections with nowadays warming climate are not entirely clear, particularly in Tibet and other high-altitude areas where field observations remain scarce. Here, we investigate daily to seasonal river sediment transport dynamics between the cold, permafrost-dominated northeastern Tibetan Plateau and warm, non-permafrost Sichuan and Taiwan regions. Our results show that at a given river water discharge, greater river suspended sediment was evacuated during the pre-monsoon season (April-Mid June) relative to other seasons in the cold NE Tibetan catchments. In contrast, no such phenomenon was observed in the warm, non-permafrost regions. These comparisons likely indicate a center role of freeze-thaw processes on loose sediment generation, which enhanced sediment output. Hydmmeteorological records show up to similar to 2 degrees C warming in the NE Tibetan Plateau since the past 30 years, coupled with an 8-fold increase in sediment transport. We suggest that continuous warming climate may further accelerate sediment and soil carbon release in the Tibetan Plateau and other global permafrost-dominated areas, which in turn influences climate feedback. |
format |
Report |
author |
Zhang, Fei Hu, Yadan Fan, Xuanmei Yu, Wenlong Liu, Xingxing Jin, Zhangdong |
author_facet |
Zhang, Fei Hu, Yadan Fan, Xuanmei Yu, Wenlong Liu, Xingxing Jin, Zhangdong |
author_sort |
Zhang, Fei |
title |
Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau |
title_short |
Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau |
title_full |
Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau |
title_fullStr |
Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau |
title_full_unstemmed |
Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau |
title_sort |
controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming tibetan plateau |
publisher |
ELSEVIER |
publishDate |
2022 |
url |
http://ir.ieecas.cn/handle/361006/17171 https://doi.org/10.1016/j.catena.2021.105797 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
CATENA http://ir.ieecas.cn/handle/361006/17171 doi:10.1016/j.catena.2021.105797 |
op_doi |
https://doi.org/10.1016/j.catena.2021.105797 |
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CATENA |
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209 |
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105797 |
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1768373119699910656 |