干旱区生态环境知识资源中心(Arid): Effects of Plum Plantation Ages on Soil Organic Carbon Mineralization in the Karst Rocky Desertification Ecosystem of Southwest China

Arid

DOI	10.3390/f10121107
	Effects of Plum Plantation Ages on Soil Organic Carbon Mineralization in the Karst Rocky Desertification Ecosystem of Southwest China
	Yang, Hui 1,2; Mo, Biqin 1,2; Zhou, Mengxia 1,2; Zhu, Tongbin 1,2; Cao, Jianhua 1,2
通讯作者	Zhu, Tongbin
来源期刊	FORESTS
EISSN	1999-4907
出版年	2019
卷号	10 期号:12
英文摘要	Soil organic carbon (SOC) mineralization is closely related to carbon source or sink of terrestrial ecosystem. Understanding SOC mineralization under plum plantation is essential for improving our understanding of SOC responses to land-use change in karst rocky desertification ecosystem. In this study, 2-year, 5-year, and 20-year plum plantations and adjacent abandoned land dominated by herbs were sampled, and a 90-day incubation experiment was conducted to investigate the effect of plum plantations with different ages on SOC mineralization in subtropical China. Results showed that: (1) Plum plantation significantly decreased SOC content compared with abandoned land, but there was no significant difference in SOC content among plum plantations with different ages. Oppositely, the accumulative SOC mineralization (C-t) and potential SOC mineralization (C-0) showed different responses to plum plantation ages. (2) The dynamics of the SOC mineralization were a good fit to a first-order kinetic model. Both C-0 and C-t in calcareous soil of this study was several- to 10-folds lower than other soils in non-karst regions, indicating that SOC in karst regions has higher stability. (3) Correlation analysis revealed that both C-t and C-0 was significantly correlated with soil calcium (Ca), suggesting an important role of Ca in SOC mineralization in karst rocky desertification areas. In conclusion, a Ca-rich geological background controls SOC mineralization in karst rocky desertification areas.
英文关键词	calcareous soil plum plantation ages organic carbon mineralization fitting parameters organic carbon accumulation
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000507288400076
WOS关键词	FOREST ; NITROGEN ; RESTORATION ; RESPIRATION ; EMISSIONS ; STORAGE
WOS类目	Forestry
WOS研究方向	Forestry
EI主题词	2019-12-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311218
作者单位	1.Minist Nat Resources MNR & Guangxi, Karst Dynam Lab, Inst Karst Geol CAGS, Guilin 541004, Peoples R China; 2.UNESCO, Int Res Ctr Karst, Guilin 541004, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hui,Mo, Biqin,Zhou, Mengxia,et al. Effects of Plum Plantation Ages on Soil Organic Carbon Mineralization in the Karst Rocky Desertification Ecosystem of Southwest China[J],2019,10(12).
APA	Yang, Hui,Mo, Biqin,Zhou, Mengxia,Zhu, Tongbin,&Cao, Jianhua.(2019).Effects of Plum Plantation Ages on Soil Organic Carbon Mineralization in the Karst Rocky Desertification Ecosystem of Southwest China.FORESTS,10(12).
MLA	Yang, Hui,et al."Effects of Plum Plantation Ages on Soil Organic Carbon Mineralization in the Karst Rocky Desertification Ecosystem of Southwest China".FORESTS 10.12(2019).