干旱区生态环境知识资源中心(Arid): Litter input promoted dissolved organic carbon migration in karst soil

Arid

DOI	10.1016/j.apsoil.2024.105606
	Litter input promoted dissolved organic carbon migration in karst soil
	Zhou, Hong; Dai, Quanhou; Yan, Youjin; He, Jie; Yang, Ying; Zhang, You; Hu, Zeyin; Meng, Wenping; Wang, Chenyang
通讯作者	Dai, QH
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2024
卷号	202
英文摘要	Litter input is crucial for enhancing carbon sequestration in karst ecosystems. While previous studies have linked litter input to carbon storage in karst soils, the unique conditions of southwest China's karst regions, characterized by high precipitation and rapid groundwater dynamics, pose challenges to understanding dissolved organic carbon (DOC) migration under litter cover. This study investigated how different litter types from karstadapted vegetation affect DOC migration and loss in karst soils, addressing the gaps in carbon sequestration evaluations during vegetation restoration. Artificial soil columns were used to monitor the natural rainfall over one hydrological year. The results indicated that litter cover increased the soil carbon dioxide (CO2) concentration and enhanced DOC leaching and migration, with the highest DOC loss observed in the tree litter treatment (2614.50 mg) and the lowest in the shrub litter treatment (1844.13 mg). These differences were attributed to the synergistic interaction between rainfall and litter characteristics, which accounted for 29.94 % of the variation in soil DOC leaching after litter input. Regression analyses indicated that DOC leaching under litter cover was mainly affected by the soil CO2 concentration, temperature, humidity, rainfall, and litter decomposition duration. In summary, litter cover significantly intensified DOC migration and loss in karst soils. This study provides valuable insights into vegetation restoration and reconstruction, particularly in karst regions.
英文关键词	Soil dissolved organic carbon Plant litter Natural rainfall Intercepted precipitation Karst vegetation restoration
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001301934000001
WOS关键词	ROCKY DESERTIFICATION ; LAND-USE ; MATTER ; FOREST ; EROSION ; DECOMPOSITION ; TRANSPORT ; RUNOFF ; INTERCEPTION ; NITROGEN
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402894
推荐引用方式 GB/T 7714	Zhou, Hong,Dai, Quanhou,Yan, Youjin,et al. Litter input promoted dissolved organic carbon migration in karst soil[J],2024,202.
APA	Zhou, Hong.,Dai, Quanhou.,Yan, Youjin.,He, Jie.,Yang, Ying.,...&Wang, Chenyang.(2024).Litter input promoted dissolved organic carbon migration in karst soil.APPLIED SOIL ECOLOGY,202.
MLA	Zhou, Hong,et al."Litter input promoted dissolved organic carbon migration in karst soil".APPLIED SOIL ECOLOGY 202(2024).