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Dryland soils in northern China sequester carbon during the early 2000s warming hiatus period

文献类型：期刊论文

作者Kou, Dan4; Ma, Wenhong3; Ding, Jinzhi4; Zhang, Beibei; Fang, Kai4; Hu, Huifeng; Yu, Jianchun4; Wang, Tian4; Qin, Shuqi4; Zhao, Xia
刊名FUNCTIONAL ECOLOGY
出版日期2018
卷号32期号:6页码:1620-1630
关键词carbon cycle carbon-climate feedback dryland global change soil organic carbon soil resampling
ISSN号0269-8463
DOI10.1111/1365-2435.13088
文献子类Article
英文摘要1. Drylands, covering c. 45% of the Earth's terrestrial surface and supporting c. 38% of the global population, play a dominant role in the trend and interannual variability of global land carbon (C) sink. Given that a large proportion of organic C is stored in soils, our knowledge on soil C dynamics in drylands is crucial to evaluate terrestrial C-climate feedback. However, credible understanding on this issue is still greatly limited by the lack of direct observations. 2. Here, based on a regional resampling of historical sites collected during 2002-2004, we explored the soil organic C (SOC) changes in various layers over the past decade across the arid/semi-arid grasslands on the Inner Mongolian Plateau. 3. Our results revealed that the SOC density in this typical dryland increased significantly over the monitoring period, with a mean increase in 50.6g Cm(-2)year(-1) or 0.8% per year in the top 50cm depth. Moreover, soil C dynamics exhibited contrasting spatial patterns between different layers: the rate of C accumulation in surface soils (0-10cm) decreased, whereas that in deep soils (30-50cm) exhibited an increasing trend along the aridity gradient. 4. Collectively, these findings demonstrate that dryland soils function as an important C sink, with the drier region tending to sequester C in deeper soils due to the greater root biomass allocation.
学科主题Ecology
出版地HOBOKEN
电子版国际标准刊号1365-2435
WOS关键词ORGANIC-CARBON ; SEMIARID ECOSYSTEMS ; NITROGEN ADDITION ; CLIMATE-CHANGE ; PRECIPITATION ; RESPIRATION ; RESPONSES ; CO2 ; TRENDS ; STOCKS
语种英语
WOS记录号WOS:000435442500018
出版者WILEY
资助机构National Basic Research Program of China on Global ChangeNational Basic Research Program of China [2014CB954001, 2014CB954303] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670482, 31160119] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSWSMC049] ; Chinese Academy of Sciences-Peking University Pioneer Cooperation Team
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/20658]  
专题植被与环境变化国家重点实验室
作者单位1.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing, Peoples R China
2.Inner Mongolia Univ, Sch Ecol & Environm, Dept Ecol, Hohhot, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
5.Peking Univ, Dept Ecol, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Kou, Dan,Ma, Wenhong,Ding, Jinzhi,et al. Dryland soils in northern China sequester carbon during the early 2000s warming hiatus period[J]. FUNCTIONAL ECOLOGY,2018,32(6):1620-1630.
APA Kou, Dan.,Ma, Wenhong.,Ding, Jinzhi.,Zhang, Beibei.,Fang, Kai.,...&Yang, Yuanhe.(2018).Dryland soils in northern China sequester carbon during the early 2000s warming hiatus period.FUNCTIONAL ECOLOGY,32(6),1620-1630.
MLA Kou, Dan,et al."Dryland soils in northern China sequester carbon during the early 2000s warming hiatus period".FUNCTIONAL ECOLOGY 32.6(2018):1620-1630.

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来源：植物研究所

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