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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16284
|2 doi
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|a pubmed25n1138.xml
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|a (DE-627)NLM341742449
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|a (NLM)35652259
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Peng, Ruonan
|e verfasserin
|4 aut
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| 245 |
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|a Tree growth is connected with distribution and warming-induced degradation of permafrost in southern Siberia
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 03.08.2022
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|a Date Revised 26.09.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 John Wiley & Sons Ltd.
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|a Hemiboreal and boreal forests growing at the southern margin of the permafrost distribution are vulnerable to climate warming. However, how climate warming threatens the growth of dominant tree species that are distributed on permafrost remains to be determined, particularly in synchrony with warming-induced permafrost degradation. Tree growth in the permafrost region of southern Siberia was hypothesized to be highly sensitive to temperature increasing and warming-induced permafrost degradation. To test this hypothesis, we sampled the tree ring width of 535 trees of dominant species, larch (including Larix gmelinii and L. sibirica) and white birch (Betula platyphylla), in ten hemiboreal to boreal forest plots within different permafrost zones. The relationships between the tree ring basal area index (BAI) and temperature, precipitation, and the Palmer drought severity index (PDSI) were compared among plots located in two permafrost zones. In the isolated permafrost zone, white birch grows better than larch and is not drought-stressed (p < .05). We suggest that the deep-rooted white birch benefits from the water from thawing permafrost, while the growth of the shallow-rooted larch is stressed by drought. In the sporadic discontinuous permafrost zone, both white birch and larch benefited from permafrost melting, but the sensitivity of larch growth to PDSI is still significant (p < .05), indicating drought is still an important climatic factor limiting the growth of larch. Our results imply that the permafrost degradation caused by climate warming affects tree growth by creating the root layer additional water source. In the future, it is necessary to focus on monitoring permafrost degradation to better predict forest dynamics at the southern margin of the permafrost distribution
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|a Journal Article
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|a climate-growth relationship
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|a hemiboreal and boreal forests
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4 |
|a larch
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|a permafrost zone
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| 650 |
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|a white birch
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| 650 |
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7 |
|a Water
|2 NLM
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| 650 |
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7 |
|a 059QF0KO0R
|2 NLM
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| 700 |
1 |
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|a Liu, Hongyan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Anenkhonov, Oleg A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sandanov, Denis V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Korolyuk, Andrey Yu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Liang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Chongyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dai, Jingyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Lu
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 28(2022), 17 vom: 04. Sept., Seite 5243-5253
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnas
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| 773 |
1 |
8 |
|g volume:28
|g year:2022
|g number:17
|g day:04
|g month:09
|g pages:5243-5253
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.16284
|3 Volltext
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