气候变化领域集成服务门户(CCPortal): Impacts of 21-year field warming on soil erodibility in the Qinghai-Tibetan Plateau, China

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DOI	10.1016/j.geoderma.2021.115382
	Impacts of 21-year field warming on soil erodibility in the Qinghai-Tibetan Plateau, China
	Guo, Zi Qi; Zhou, Hua Kun; Chen, Wen Jing; Wu, Yang; Li, Yuan Ze; Qiao, Lei Lei; You, Qi Ming; Liu, Guo Bin; Xue, Sha
通讯作者	Xue, S (通讯作者)，Northwest A&F Univ, Inst Soil & Water Conservat, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China.
发表日期	2022
ISSN	0016-7061
EISSN	1872-6259
卷号	405
英文摘要	Terrestrial ecosystems are significantly impacted by global warming. To determine the effects of long-term warming on soil structure and erodibility in the Qinghai-Tibetan Plateau (China), a 21-year field warming experiment was conducted, where the soil response to temperature changes was investigated for two vegetation types (shrubland and grassland). The measured parameters included the fractal dimension (D-v) of aggregates, mean weight diameter (MWD), geometric mean diameter (GMD), multifractal dimensions of particle size distribution [capacity dimension (D-0), information dimension (D-1), information dimension/capacity dimension ratio (Di/Do), and correlation dimension (D-2)], and soil erodibility value (K). The results show that warming significantly increases the erodibility of the topsoil (0-2 cm). Among them, the larger particles (0.2-2 mm aggregates, sand) decreased, the K factor, D-v, and multifractal dimension (D-0) increased, and the MWD and GMD of the soil aggregates decreased. Long-term warming affected the amounts of soil organic carbon, total nitrogen, and total phosphorus. Furthermore, warming weakened microbial activity and led to a reduction in the aboveground biomass of plants. With increasing soil depth, the effect of warming on the erodibility of underlying soil (2-12 cm) gradually weakened. Warming exhibited different effects on the erodibility of the shrubland and grassland because of their different soil aggregates and particle size distributions. These results confirm that long-term warming has obvious soil layering effects on different soil depths. Soil properties, plants, and microorganisms respond to warming and have direct or indirect effects on soil emdibility. The results of this study provide important insights into changes in soil structure and emdibility at high altitudes, especially under global warming.
关键词	ORGANIC-CARBON MICROBIAL BIOMASS AGGREGATE STABILITY COMMUNITY STRUCTURE METABOLIC-ACTIVITY ENZYME-ACTIVITIES ALPINE MEADOW LOESS PLATEAU ROOT BIOMASS LAND-USE
英文关键词	Experimental warming; Grassland; Multifractal analysis; Shrubland; Soil structure
语种	英语
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:000703712100003
来源期刊	GEODERMA
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254813
作者单位	[Guo, Zi Qi; Chen, Wen Jing; Wu, Yang; Li, Yuan Ze] Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China; [Zhou, Hua Kun] Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Restorat Ecol Cold Reg, Xining 810000, Peoples R China; [Zhou, Hua Kun] Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810000, Peoples R China; [Qiao, Lei Lei; Liu, Guo Bin; Xue, Sha] Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China; [Qiao, Lei Lei; Liu, Guo Bin; Xue, Sha] Univ Chinese Acad Sci, Beijing, Peoples R China; [You, Qi Ming] Qunjia State Forest Farm, Xining 810000, Peoples R China
推荐引用方式 GB/T 7714	Guo, Zi Qi,Zhou, Hua Kun,Chen, Wen Jing,et al. Impacts of 21-year field warming on soil erodibility in the Qinghai-Tibetan Plateau, China[J]. 中国科学院西北生态环境资源研究院,2022,405.
APA	Guo, Zi Qi.,Zhou, Hua Kun.,Chen, Wen Jing.,Wu, Yang.,Li, Yuan Ze.,...&Xue, Sha.(2022).Impacts of 21-year field warming on soil erodibility in the Qinghai-Tibetan Plateau, China.GEODERMA,405.
MLA	Guo, Zi Qi,et al."Impacts of 21-year field warming on soil erodibility in the Qinghai-Tibetan Plateau, China".GEODERMA 405(2022).