Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China
To predict future spatio-temporal patterns of climate change, we should fully understand the spatio-temporal patterns of climate change during the past millennium. But, we are not yet able to delineate the patterns because the qualities of the retrieved proxy records and the spatial coverage of thos...
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ftchinacadscimhe:oai:ir.imde.ac.cn:131551/51466 2023-05-15T16:39:24+02:00 Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China ZHANG Dongliang YANG Yunpeng LAN Bo 2017-01-01 http://ir.imde.ac.cn/handle/131551/51466 英语 eng Journal of Mountain Science http://ir.imde.ac.cn/handle/131551/51466 Peat Carbon Isotope Of Cellulose Humification Warm-season Moisture Southern Altai Mountains 期刊论文 2017 ftchinacadscimhe 2022-12-19T18:27:52Z To predict future spatio-temporal patterns of climate change, we should fully understand the spatio-temporal patterns of climate change during the past millennium. But, we are not yet able to delineate the patterns because the qualities of the retrieved proxy records and the spatial coverage of those records are not adequate. Northern Xinjiang of China is one of such areas where the records are not adequate. Here, we present a 500-yr land-surface moisture sequence from Heiyangpo Peat (48.34°N, 87.18°E, 1353 m a.s.l) in the southern Altai Mountains within northern Xinjiang. Specifically, peat carbon isotope value of cellulose (δ13Ccellulose) was used to estimate the warm-season moisture variations and the degree of humification was used to constrain the δ13Ccellulose-based hydrological interpretation. The climatic attributions of the interpreted hydrological variations were based on the warm-season temperature reconstructed from Belukha ice core and the warm-season precipitation inferred from the reconstructed Atlantic Multidecadal Oscillations (AMO). The results show that humification decreased and the δ13Ccelluose-suggested moisture decreased from ~1510 to ~1775 AD, implying that a constant drying condition may have inhibited peat decay. Our comparison with reconstructed climatic parameters suggests that the moisture-level decline was most likely resulted from a constant decline of precipitation. The results also show that humification kept a stable level and the δ13Ccelluose-suggested moisture also decreased from ~1775 to ~2013 AD, implying that peat decay in the acrotelm primarily did not depend on the water availability or an aerobic environment. Again, our comparison with reconstructed climatic parameters suggests that the land-surface moisture-level decline was most likely resulted from a steady warming of growing-season temperature. Report ice core IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
institution |
Open Polar |
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IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadscimhe |
language |
English |
topic |
Peat Carbon Isotope Of Cellulose Humification Warm-season Moisture Southern Altai Mountains |
spellingShingle |
Peat Carbon Isotope Of Cellulose Humification Warm-season Moisture Southern Altai Mountains ZHANG Dongliang YANG Yunpeng LAN Bo Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China |
topic_facet |
Peat Carbon Isotope Of Cellulose Humification Warm-season Moisture Southern Altai Mountains |
description |
To predict future spatio-temporal patterns of climate change, we should fully understand the spatio-temporal patterns of climate change during the past millennium. But, we are not yet able to delineate the patterns because the qualities of the retrieved proxy records and the spatial coverage of those records are not adequate. Northern Xinjiang of China is one of such areas where the records are not adequate. Here, we present a 500-yr land-surface moisture sequence from Heiyangpo Peat (48.34°N, 87.18°E, 1353 m a.s.l) in the southern Altai Mountains within northern Xinjiang. Specifically, peat carbon isotope value of cellulose (δ13Ccellulose) was used to estimate the warm-season moisture variations and the degree of humification was used to constrain the δ13Ccellulose-based hydrological interpretation. The climatic attributions of the interpreted hydrological variations were based on the warm-season temperature reconstructed from Belukha ice core and the warm-season precipitation inferred from the reconstructed Atlantic Multidecadal Oscillations (AMO). The results show that humification decreased and the δ13Ccelluose-suggested moisture decreased from ~1510 to ~1775 AD, implying that a constant drying condition may have inhibited peat decay. Our comparison with reconstructed climatic parameters suggests that the moisture-level decline was most likely resulted from a constant decline of precipitation. The results also show that humification kept a stable level and the δ13Ccelluose-suggested moisture also decreased from ~1775 to ~2013 AD, implying that peat decay in the acrotelm primarily did not depend on the water availability or an aerobic environment. Again, our comparison with reconstructed climatic parameters suggests that the land-surface moisture-level decline was most likely resulted from a steady warming of growing-season temperature. |
format |
Report |
author |
ZHANG Dongliang YANG Yunpeng LAN Bo |
author_facet |
ZHANG Dongliang YANG Yunpeng LAN Bo |
author_sort |
ZHANG Dongliang |
title |
Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China |
title_short |
Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China |
title_full |
Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China |
title_fullStr |
Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China |
title_full_unstemmed |
Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China |
title_sort |
peat humification- and δ13ccellulose-recorded warm-season moisture variations during the past 500 years in the southern altai mountains within northern xinjiang of china |
publishDate |
2017 |
url |
http://ir.imde.ac.cn/handle/131551/51466 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
Journal of Mountain Science http://ir.imde.ac.cn/handle/131551/51466 |
_version_ |
1766029738486267904 |