IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.11
Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China
Alternative TitlePeat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China
ZHANG Dong-liang; YANG Yun-peng; LAN Bo
Corresponding AuthorZHANG Dong-liang
2017-11
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:11Pages:2200-2211
Subtype期刊论文
AbstractTo 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.
Other AbstractTo 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.
KeywordPeat Carbon Isotope Of Cellulose Humification Warm-season Moisture Southern Altai Mountains
DOIhttps://doi.org/10.1007/s11629-017-4538-1
Indexed BySCI
Language英语
CSCD IDCSCD:6103891
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19189
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.11
Recommended Citation
GB/T 7714
ZHANG Dong-liang,YANG Yun-peng,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[J]. Journal of Mountain Science,2017,14(11):2200-2211.
APA ZHANG Dong-liang,YANG Yun-peng,&LAN Bo.(2017).Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China.Journal of Mountain Science,14(11),2200-2211.
MLA ZHANG Dong-liang,et al."Peat humification- and δ13Ccellulose-recorded warm-season moisture variations during the past 500 years in the southern Altai Mountains within northern Xinjiang of China".Journal of Mountain Science 14.11(2017):2200-2211.
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