干旱区生态环境知识资源中心(Arid): Response of soil organic carbon to land-use change after farmland abandonment in the karst desertification control

Arid

DOI	10.1007/s11104-024-06541-w
	Response of soil organic carbon to land-use change after farmland abandonment in the karst desertification control
	Mu, Yating; Ye, Runcheng; Xiong, Kangning; Li, Yue; Liu, Ziqi; Long, Yidong; Cai, Lulu; Zhou, Qingping
通讯作者	Xiong, KN
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2024
卷号	501 期号:1-2 页码:595-610
英文摘要	Background Land-use change caused by vegetation restoration in karst areas plays an active role in soil carbon sink. However, the response of soil organic carbon (SOC) accumulation and turnover to land-use change after farmland abandonment is still poorly understood. Methods and aims In this study, we investigated the impacts of converting farmland (maize) (FL) to economic forests [Juglans regia L. (walnut) plantation (JP), and Rosa roxburghii Tratt plantation (RP)], artificial grassland (AG), or natural grassland (NG) on the distribution of SOC and delta C-13 in the karst desertification control. Results The SOC stock in the 0-40 cm profile was 67%, 59%, 14%, and 8% higher in RP, JP, AG, and NG than in FL (control). The delta C-13 values in AG, RP, and JP were significantly lower than those in NG and FL at the 0-5 cm depth. It was observed that the delta C-13 increased with soil depth. However, the SOC content decreased. The beta values ranged from - 6.94 to -3.88 and increased in the order of RP < AG < FL < JP < NG. Redundancy analysis (RDA) showed that total nitrogen content and soil C/N ratio accounted for significant differences in soil delta C-13 and SOC levels. Conclusions Our results suggested that economic forests triggered higher SOC accumulation than artificial grassland and natural revegetation after farmland abandonment, but the rate of soil C turnover following afforestation was still higher than that followed by natural revegetation in the short term.
英文关键词	Soil organic carbon C-13 Farmland abandonment Afforestation Karst desertification
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001161140000002
WOS关键词	VEGETATION CHANGES ; VERTICAL PATTERNS ; DEPTH PROFILES ; ISOTOPE RATIOS ; GREEN PROGRAM ; FOREST ; DECOMPOSITION ; DELTA-C-13 ; TURNOVER ; DYNAMICS
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405088
推荐引用方式 GB/T 7714	Mu, Yating,Ye, Runcheng,Xiong, Kangning,et al. Response of soil organic carbon to land-use change after farmland abandonment in the karst desertification control[J],2024,501(1-2):595-610.
APA	Mu, Yating.,Ye, Runcheng.,Xiong, Kangning.,Li, Yue.,Liu, Ziqi.,...&Zhou, Qingping.(2024).Response of soil organic carbon to land-use change after farmland abandonment in the karst desertification control.PLANT AND SOIL,501(1-2),595-610.
MLA	Mu, Yating,et al."Response of soil organic carbon to land-use change after farmland abandonment in the karst desertification control".PLANT AND SOIL 501.1-2(2024):595-610.