Storage and controlling factors of soil organic carbon in alpine wetlands and meadow across the Tibetan Plateau

NWIPB OpenIR

	Storage and controlling factors of soil organic carbon in alpine wetlands and meadow across the Tibetan Plateau
	Nie, Xiuqing; Wang, Dong; Ren, Lining; Du, Yangong; Zhou, Guoying
	2023
发表期刊	EUROPEAN JOURNAL OF SOIL SCIENCE
卷号	74 期号:3
摘要	Alpine wetlands and meadows across the Three Rivers Source Region (TRSR) store high soil organic carbon (SOC). However, information on factors affecting SOC storage is scanty. Herein, we investigated SOC storage and explored factors affecting SOC storage, including climate, soil properties and above- and belowground biomass, using 50 soil profiles across the TRSR on the Tibetan Plateau. The SOC storage was 491.9 +/- 158.5 Tg C and 545.2 +/- 160.8 Tg C in the TRSR alpine wetlands and meadow, respectively. The SOC stock was positively correlated with the mean annual precipitation. However, no significant correlation between SOC stock and mean annual temperature was observed, as opposed to the global trend. In addition, SOC stock was positively correlated with both the aboveground biomass (AGB) and belowground biomass (BGB). Soil pH indirectly affected SOC stock, while SOC stock positively correlated with Al and Fe oxyhydroxides. Compared with vegetation biomass and climatic factors, soil properties, including soil pH and Al and Fe oxyhydroxides (Al-o and Fe-o), affected not only SOC stock variation but also affected the impact of vegetation and climatic factors on SOC stock. Climate factors, AGB, BGB, soil pH, Al-o and Fe-o jointly accounted for 59% of SOC stock variation in alpine wetlands and 64% of SOC stock variation in alpine meadow. This study suggests that soil properties are the dominant factors affecting SOC variation in alpine wetlands and meadow on the Tibetan Plateau.
收录类别	SCIE
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/61651
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Nie, Xiuqing,Wang, Dong,Ren, Lining,et al. Storage and controlling factors of soil organic carbon in alpine wetlands and meadow across the Tibetan Plateau[J]. EUROPEAN JOURNAL OF SOIL SCIENCE,2023,74(3).
APA	Nie, Xiuqing,Wang, Dong,Ren, Lining,Du, Yangong,&Zhou, Guoying.(2023).Storage and controlling factors of soil organic carbon in alpine wetlands and meadow across the Tibetan Plateau.EUROPEAN JOURNAL OF SOIL SCIENCE,74(3).
MLA	Nie, Xiuqing,et al."Storage and controlling factors of soil organic carbon in alpine wetlands and meadow across the Tibetan Plateau".EUROPEAN JOURNAL OF SOIL SCIENCE 74.3(2023).