气候变化领域集成服务门户(CCPortal): Spatiotemporal change of carbon sink through chemical weathering of rocks over the Tibetan Plateau under climate warming

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DOI	10.1016/j.jseaes.2023.105542
	Spatiotemporal change of carbon sink through chemical weathering of rocks over the Tibetan Plateau under climate warming
	Zhao, Yang; Wang, Weiguang
发表日期	2023
ISSN	1367-9120
EISSN	1878-5786
卷号	244
英文摘要	Chemical weathering of rocks plays an important role in the global carbon cycle. The Tibetan Plateau (TP), known as the Asian Water Tower, is highly sensitive to climate change. Therefore, the impacts of climate change on rates of carbon sink via chemical weathering of rocks (RWCSR) and carbon sink flux via rock chemical weathering (RWCSF) in the TP must be understood and quantified. In this study, we assessed the RWCSR and RWCSF in the TP within China from 2000 to 2017 based on high-precision hydrometeorological data (2000-2017) and the Global Erosion Model for CO2 fluxes (GEM-CO2 model). The multi-year average RWCSR in the TP is 1.35 x 105 +/- 2.11 x 105 mol/km2. The RWCSR in most regions of the TP remained constant from 2000 to 2017. From 2000 to 2017, the RWCSF in the TP was between 263.39 x 109 and 380.45 x 109 mol/yr, with an average of 338.37 x 109 mol/yr, which accounted for 23 % of the RWCSF in China and 1 % of the RWCSF in the globe. Under climate warming, the RWCSF in the TP showed a decreasing trend from 2000 to 2017. The relative contribution rates of runoff, precipitation, and land surface temperature to the change in RWCSR reached 49.26 %, 38.86 %, and 10.49 %, respectively. This study explored the applicability of the GEM-CO2 model to the TP and provided a scientific basis for assessing the impact of climate change on carbon sink via chemical weathering of rocks in the TP.
关键词	Tibetan Plateau Rock chemical weathering carbon sink GEM-CO2 model Climate change
英文关键词	ATMOSPHERIC CO2 CONSUMPTION; RIVERS; RATES; TEMPERATURE; EROSION; LOESS; CHINA; MODEL; BASIN
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:000925599400001
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283903
作者单位	Hohai University; Hohai University
推荐引用方式 GB/T 7714	Zhao, Yang,Wang, Weiguang. Spatiotemporal change of carbon sink through chemical weathering of rocks over the Tibetan Plateau under climate warming[J],2023,244.
APA	Zhao, Yang,&Wang, Weiguang.(2023).Spatiotemporal change of carbon sink through chemical weathering of rocks over the Tibetan Plateau under climate warming.JOURNAL OF ASIAN EARTH SCIENCES,244.
MLA	Zhao, Yang,et al."Spatiotemporal change of carbon sink through chemical weathering of rocks over the Tibetan Plateau under climate warming".JOURNAL OF ASIAN EARTH SCIENCES 244(2023).