Soil Moisture Alters the Response of Soil Organic Carbon Mineralization to Litter Addition

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	Soil Moisture Alters the Response of Soil Organic Carbon Mineralization to Litter Addition
	Wang, Qingkui 1,2; Zeng, Zhangquan 3; Zhong, Micai 2,4
刊名	ECOSYSTEMS
	2016-04-01
卷号	19 期号:3 页码:450-460
关键词	soil moisture litter addition priming effect soil microbial community soil organic carbon forest eocsystem
英文摘要	Increasing rainfall and longer drought conditions lead to frequent changes in soil moisture that affect soil organic carbon (SOC) mineralization. However, how soil moisture affects response of SOC mineralization to litter addition in forest ecosystems remains unexplored. We added C-13-labeled litter to subtropical forest soils with three mass water contents (L, 21%; M, 33%; H, 45%). Carbon dioxide production was monitored, and the composition of soil microbial communities was determined by phospholipid fatty acid (PLFA). When no litter was added, SOC mineralization was greater in the M-treated soil. Litter addition promoted SOC mineralization, but this promotion was altered by soil moisture and litter type. Priming effects induced by P. massoniana leaf litter in the M-moistened soil were significantly (P < 0.05) higher than those in other treatments. Litter-derived C was approximately 55% incorporated into 18:1 omega 9c and 16:0 PLFAs, and this proportion was not significantly affected by soil moisture. Soil moisture affected the distribution of litter-C-13 in i15:0, i17:0, and cy19:0 individual PLFAs. The primed C evolution was significantly related to the ratio of Gram-positive to Gram-negative bacteria. These results suggest that changes in soil moisture could affect SOC mineralization in forest ecosystems.
类目[WOS]	Ecology
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	MICROBIAL COMMUNITY STRUCTURE ; PLANTATION FOREST ; BACTERIAL-GROWTH ; CO2 EFFLUX ; BIOMASS ; DECOMPOSITION ; RESPIRATION ; MATTER ; WATER ; MECHANISMS
收录类别	SCI
语种	英语
WOS记录号	WOS:000373018200006
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/26187]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Huitong Expt Stn Forest Ecol, Shenyang 110164, Peoples R China 2.Huitong Natl Res Stn Forest Ecosyst, Huitong 418307, Peoples R China 3.Hunan Acad Forestry, Changsha 410004, Hunan, Peoples R China 4.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qingkui,Zeng, Zhangquan,Zhong, Micai. Soil Moisture Alters the Response of Soil Organic Carbon Mineralization to Litter Addition[J]. ECOSYSTEMS,2016,19(3):450-460.
APA	Wang, Qingkui,Zeng, Zhangquan,&Zhong, Micai.(2016).Soil Moisture Alters the Response of Soil Organic Carbon Mineralization to Litter Addition.ECOSYSTEMS,19(3),450-460.
MLA	Wang, Qingkui,et al."Soil Moisture Alters the Response of Soil Organic Carbon Mineralization to Litter Addition".ECOSYSTEMS 19.3(2016):450-460.