降雨量和降雨时间共同调控黄河三角洲典型盐沼湿地土壤碳矿化

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	降雨量和降雨时间共同调控黄河三角洲典型盐沼湿地土壤碳矿化
	李雪 1,2,3; 董杰 1; 李培广 2,3; 王晓杰 2,3; 韩广轩 2,3; 宋维民 2,3
刊名	应用生态学报
	2021
卷号	32 期号:2 页码:581-590
关键词	降雨体系气候变化黄河三角洲盐沼湿地碳汇土壤碳矿化
ISSN号	1001-9332
其他题名	Co-regulation of rainfall amount and timing on soil carbon mineralization in a typical salt marsh of the Yellow River Delta,China
文献子类	Article
英文摘要	Studying the effects of rainfall regimes such as rainfall amount and timing on soil carbon mineralization is of great importance for our understanding the mechanisms underlying the stability and accumulation of soil carbon in coastal salt marshes. In this study,we examined the responses of soil carbon mineralization (CO_2 and CH_4 fluxes) from undisturbed soil columns to rainfall events in different seasons (dry and wet seasons) with filed experiments in a primary Suaeda salsa region in the Yellow River Delta salt-marsh wetland,which is far away from the coast and not affected by tides. The results showed that rainfall amount and timing had a significant interaction in affecting soil CO_2 flux rates. During the dry season,large rainfall events significantly reduced soil CO_2 flux rates but had no significant effect in the wet season,which might be closely related to the significant increase in soil water content and salinity. Rainfall amount,rainfall timing and their interactions had no significant effect on soil CH_4 efflux rates. Rainfall timing and rainfall amount did not affect CH_4 /CO_2. CH_4 /CO_2 increased with increasing soil water content and salinity. Soil water content and soil salinity showed similar increases to increasing rainfall amount. Our results suggested that the changing rainfall regime under climate change in the future would have a great impact on soil carbon mineralization and carbon sink function by regulating soil water and salt migration in this region.
语种	中文
CSCD记录号	CSCD:6904406
资助机构	国家自然科学基金项目 ; 国家自然科学基金委员会-山东联合基金项目 ; 中国科学院十三五信息化建设专项
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/30302]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.聊城大学环境与规划学院,山东聊城252059; 2.中国科学院烟台海岸带研究所,中国科学院海岸带环境过程与生态修复重点实验室,山东烟台264003; 3.中国科学院黄河三角洲滨海湿地生态实验站,山东东营257500
推荐引用方式 GB/T 7714	李雪,董杰,李培广,等. 降雨量和降雨时间共同调控黄河三角洲典型盐沼湿地土壤碳矿化[J]. 应用生态学报,2021,32(2):581-590.
APA	李雪,董杰,李培广,王晓杰,韩广轩,&宋维民.(2021).降雨量和降雨时间共同调控黄河三角洲典型盐沼湿地土壤碳矿化.应用生态学报,32(2),581-590.
MLA	李雪,et al."降雨量和降雨时间共同调控黄河三角洲典型盐沼湿地土壤碳矿化".应用生态学报 32.2(2021):581-590.