Decadal soil carbon accumulation across Tibetan permafrost regions

Jinzhi Ding, Leiyi Chen, Chengjun Ji, Gustaf Hugelius, Yingnian Li, Li Liu, Shuqi Qin, Beibei Zhang, Guibiao Yang, Fei Li, Kai Fang, Yongliang Chen, Yunfeng Peng, Xia Zhao, Honglin He, Pete Smith, Jingyun Fang, Yuanhe Yang (Corresponding Author)

Research output: Contribution to journalArticle

28 Citations (Scopus)
3 Downloads (Pure)

Abstract

Permafrost soils store large amounts of carbon. Warming can result in carbon release from thawing permafrost, but it can also lead to enhanced primary production, which can increase soil carbon stocks. The balance of these fluxes determines the nature of the permafrost feedback to warming. Here we assessed decadal changes in soil organic carbon stocks in the active layer—the uppermost 30 cm—of permafrost soils across Tibetan alpine regions, based on repeated soil carbon measurements in the early 2000s and 2010s at the same sites. We observed an overall accumulation of soil organic carbon irrespective of vegetation type, with a mean rate of 28.0 g C m−2 yr−1 across Tibetan permafrost regions. This soil organic carbon accrual occurred only in the subsurface soil, between depths of 10 and 30 cm, mainly induced by an increase of soil organic carbon concentrations. We conclude that the upper active layer of Tibetan alpine permafrost currently represents a substantial regional soil carbon sink in a warming climate, implying that carbon losses of deeper and older permafrost carbon might be offset by increases in upper-active-layer soil organic carbon stocks, which probably results from enhanced vegetation growth.
Original languageEnglish
Pages (from-to)420-424
Number of pages5
JournalNature Geoscience
Volume10
Issue number6
Early online date8 May 2017
DOIs
Publication statusPublished - Jun 2017

Fingerprint

soil carbon
permafrost
organic carbon
soil
warming
active layer
carbon
carbon sink
thawing
soil depth
vegetation type
primary production
vegetation
climate

Cite this

Ding, J., Chen, L., Ji, C., Hugelius, G., Li, Y., Liu, L., ... Yang, Y. (2017). Decadal soil carbon accumulation across Tibetan permafrost regions. Nature Geoscience, 10(6), 420-424. https://doi.org/10.1038/ngeo2945

Decadal soil carbon accumulation across Tibetan permafrost regions. / Ding, Jinzhi; Chen, Leiyi; Ji, Chengjun; Hugelius, Gustaf ; Li, Yingnian; Liu, Li; Qin, Shuqi; Zhang, Beibei; Yang, Guibiao; Li, Fei; Fang, Kai; Chen, Yongliang; Peng, Yunfeng; Zhao, Xia; He, Honglin; Smith, Pete; Fang, Jingyun; Yang, Yuanhe (Corresponding Author).

In: Nature Geoscience, Vol. 10, No. 6, 06.2017, p. 420-424.

Research output: Contribution to journalArticle

Ding, J, Chen, L, Ji, C, Hugelius, G, Li, Y, Liu, L, Qin, S, Zhang, B, Yang, G, Li, F, Fang, K, Chen, Y, Peng, Y, Zhao, X, He, H, Smith, P, Fang, J & Yang, Y 2017, 'Decadal soil carbon accumulation across Tibetan permafrost regions', Nature Geoscience, vol. 10, no. 6, pp. 420-424. https://doi.org/10.1038/ngeo2945
Ding J, Chen L, Ji C, Hugelius G, Li Y, Liu L et al. Decadal soil carbon accumulation across Tibetan permafrost regions. Nature Geoscience. 2017 Jun;10(6):420-424. https://doi.org/10.1038/ngeo2945
Ding, Jinzhi ; Chen, Leiyi ; Ji, Chengjun ; Hugelius, Gustaf ; Li, Yingnian ; Liu, Li ; Qin, Shuqi ; Zhang, Beibei ; Yang, Guibiao ; Li, Fei ; Fang, Kai ; Chen, Yongliang ; Peng, Yunfeng ; Zhao, Xia ; He, Honglin ; Smith, Pete ; Fang, Jingyun ; Yang, Yuanhe. / Decadal soil carbon accumulation across Tibetan permafrost regions. In: Nature Geoscience. 2017 ; Vol. 10, No. 6. pp. 420-424.
@article{cf5e23d34a21440088900906527d4746,
title = "Decadal soil carbon accumulation across Tibetan permafrost regions",
abstract = "Permafrost soils store large amounts of carbon. Warming can result in carbon release from thawing permafrost, but it can also lead to enhanced primary production, which can increase soil carbon stocks. The balance of these fluxes determines the nature of the permafrost feedback to warming. Here we assessed decadal changes in soil organic carbon stocks in the active layer—the uppermost 30 cm—of permafrost soils across Tibetan alpine regions, based on repeated soil carbon measurements in the early 2000s and 2010s at the same sites. We observed an overall accumulation of soil organic carbon irrespective of vegetation type, with a mean rate of 28.0 g C m−2 yr−1 across Tibetan permafrost regions. This soil organic carbon accrual occurred only in the subsurface soil, between depths of 10 and 30 cm, mainly induced by an increase of soil organic carbon concentrations. We conclude that the upper active layer of Tibetan alpine permafrost currently represents a substantial regional soil carbon sink in a warming climate, implying that carbon losses of deeper and older permafrost carbon might be offset by increases in upper-active-layer soil organic carbon stocks, which probably results from enhanced vegetation growth.",
author = "Jinzhi Ding and Leiyi Chen and Chengjun Ji and Gustaf Hugelius and Yingnian Li and Li Liu and Shuqi Qin and Beibei Zhang and Guibiao Yang and Fei Li and Kai Fang and Yongliang Chen and Yunfeng Peng and Xia Zhao and Honglin He and Pete Smith and Jingyun Fang and Yuanhe Yang",
note = "Acknowledgements We thank the members of Peking University Sampling Teams (2001–2004) and IBCAS Sampling Teams (2013–2014) for assistance in field data collection. We also thank the Forestry Bureau of Qinghai Province and the Forestry Bureau of Tibet Autonomous Region for their permission and assistance during the sampling process. This study was financially supported by the National Natural Science Foundation of China (31670482 and 31322011), National Basic Research Program of China on Global Change (2014CB954001 and 2015CB954201), Chinese Academy of Sciences-Peking University Pioneer Cooperation Team, and the Thousand Young Talents Program.",
year = "2017",
month = "6",
doi = "10.1038/ngeo2945",
language = "English",
volume = "10",
pages = "420--424",
journal = "Nature Geoscience",
issn = "1752-0894",
publisher = "Nature Publishing Group",
number = "6",

}

TY - JOUR

T1 - Decadal soil carbon accumulation across Tibetan permafrost regions

AU - Ding, Jinzhi

AU - Chen, Leiyi

AU - Ji, Chengjun

AU - Hugelius, Gustaf

AU - Li, Yingnian

AU - Liu, Li

AU - Qin, Shuqi

AU - Zhang, Beibei

AU - Yang, Guibiao

AU - Li, Fei

AU - Fang, Kai

AU - Chen, Yongliang

AU - Peng, Yunfeng

AU - Zhao, Xia

AU - He, Honglin

AU - Smith, Pete

AU - Fang, Jingyun

AU - Yang, Yuanhe

N1 - Acknowledgements We thank the members of Peking University Sampling Teams (2001–2004) and IBCAS Sampling Teams (2013–2014) for assistance in field data collection. We also thank the Forestry Bureau of Qinghai Province and the Forestry Bureau of Tibet Autonomous Region for their permission and assistance during the sampling process. This study was financially supported by the National Natural Science Foundation of China (31670482 and 31322011), National Basic Research Program of China on Global Change (2014CB954001 and 2015CB954201), Chinese Academy of Sciences-Peking University Pioneer Cooperation Team, and the Thousand Young Talents Program.

PY - 2017/6

Y1 - 2017/6

N2 - Permafrost soils store large amounts of carbon. Warming can result in carbon release from thawing permafrost, but it can also lead to enhanced primary production, which can increase soil carbon stocks. The balance of these fluxes determines the nature of the permafrost feedback to warming. Here we assessed decadal changes in soil organic carbon stocks in the active layer—the uppermost 30 cm—of permafrost soils across Tibetan alpine regions, based on repeated soil carbon measurements in the early 2000s and 2010s at the same sites. We observed an overall accumulation of soil organic carbon irrespective of vegetation type, with a mean rate of 28.0 g C m−2 yr−1 across Tibetan permafrost regions. This soil organic carbon accrual occurred only in the subsurface soil, between depths of 10 and 30 cm, mainly induced by an increase of soil organic carbon concentrations. We conclude that the upper active layer of Tibetan alpine permafrost currently represents a substantial regional soil carbon sink in a warming climate, implying that carbon losses of deeper and older permafrost carbon might be offset by increases in upper-active-layer soil organic carbon stocks, which probably results from enhanced vegetation growth.

AB - Permafrost soils store large amounts of carbon. Warming can result in carbon release from thawing permafrost, but it can also lead to enhanced primary production, which can increase soil carbon stocks. The balance of these fluxes determines the nature of the permafrost feedback to warming. Here we assessed decadal changes in soil organic carbon stocks in the active layer—the uppermost 30 cm—of permafrost soils across Tibetan alpine regions, based on repeated soil carbon measurements in the early 2000s and 2010s at the same sites. We observed an overall accumulation of soil organic carbon irrespective of vegetation type, with a mean rate of 28.0 g C m−2 yr−1 across Tibetan permafrost regions. This soil organic carbon accrual occurred only in the subsurface soil, between depths of 10 and 30 cm, mainly induced by an increase of soil organic carbon concentrations. We conclude that the upper active layer of Tibetan alpine permafrost currently represents a substantial regional soil carbon sink in a warming climate, implying that carbon losses of deeper and older permafrost carbon might be offset by increases in upper-active-layer soil organic carbon stocks, which probably results from enhanced vegetation growth.

U2 - 10.1038/ngeo2945

DO - 10.1038/ngeo2945

M3 - Article

VL - 10

SP - 420

EP - 424

JO - Nature Geoscience

JF - Nature Geoscience

SN - 1752-0894

IS - 6

ER -