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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0108404
论文题名:	In Situ CO2 Efflux from Leaf Litter Layer Showed Large Temporal Variation Induced by Rapid Wetting and Drying Cycle
作者:	Mioko Ataka; Yuji Kominami; Kenichi Yoshimura; Takafumi Miyama; Mayuko Jomura; Makoto Tani
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-10-1
卷:	9, 期:10
语种:	英语
英文关键词:	Carbon dioxide ; Soil respiration ; Leaves ; Plant respiration ; Forests ; Rain ; Forest ecology ; Temperate forests
英文摘要:	We performed continuous and manual in situ measurements of CO2 efflux from the leaf litter layer (RLL) and water content of the leaf litter layer (LWC) in conjunction with measurements of soil respiration (RS) and soil water content (SWC) in a temperate forest; our objectives were to evaluate the response of RLL to rainfall events and to assess temporal variation in its contribution to RS. We measured RLL in a treatment area from which all potential sources of CO2 except for the leaf litter layer were removed. Capacitance sensors were used to measure LWC. RLL increased immediately after wetting of the leaf litter layer; peak RLL values were observed during or one day after rainfall events and were up to 8.6-fold larger than RLL prior to rainfall. RLL declined to pre-wetting levels within 2–4 day after rainfall events and corresponded to decreasing LWC, indicating that annual RLL is strongly influenced by precipitation. Temporal variation in the observed contribution of RLL to RS varied from nearly zero to 51%. Continuous in situ measurements of LWC and CO2 efflux from leaf litter only, combined with measurements of RS, can provide robust data to clarify the response of RLL to rainfall events and its contribution to total RS.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0108404&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18553
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0108404.PDF（1982KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Laboratory of Forest Hydrology, Division of Environmental Science and Technology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan;Kansai Research Center, Forestry and Forest Products Research Institute (FFPRI), Kyoto, Japan;Kansai Research Center, Forestry and Forest Products Research Institute (FFPRI), Kyoto, Japan;Kansai Research Center, Forestry and Forest Products Research Institute (FFPRI), Kyoto, Japan;College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan;Laboratory of Forest Hydrology, Division of Environmental Science and Technology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan

Recommended Citation:

Mioko Ataka,Yuji Kominami,Kenichi Yoshimura,et al. In Situ CO2 Efflux from Leaf Litter Layer Showed Large Temporal Variation Induced by Rapid Wetting and Drying Cycle[J]. PLOS ONE,2014-01-01,9(10)

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