Quantifying the interannual litterfall variations in China's forest ecosystems

doi:10.1093/jpe/rtaa010

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Quantifying the interannual litterfall variations in China's forest ecosystems
	Jia, Bingrui ; Sun, Hongru 4; Yu, Wenying 2; Zhou, Guangsheng 1
刊名	JOURNAL OF PLANT ECOLOGY
	2020
卷号	13 期号:3 页码:266-272
关键词	annual litterfall production China forest interannual variation coefficient of variation stand age
ISSN号	1752-9921
DOI	10.1093/jpe/rtaa010
文献子类	Article
英文摘要	Aims Litterfall is a key parameter in forest biogeochemical cycle and fire risk prediction. However, considerable uncertainty remains regarding the litterfall variations with forest ages. Quantifying the interannual variation of forest litterfall is crucial for reducing uncertainties in large-scale litterfall prediction. Methods Based on the available dataset (N = 318) with continuous multi-year (>= 2 years) measurements of litterfall in Chinese planted and secondary forests, coefficient of variation (CV), variation percent (V-P), and the ratio of next-year litterfall to current-year litterfall were used as the indexes to quantify the interannual variability in litterfall. Important Findings The interannual variations of litterfall showed a declining trend with increasing age from 1 to 90 years. The litterfall variations were the largest in 1-10 years (mean CV = 23.51% and mean V-P = -28.59% to 20.89%), which were mainly from tree growth (mean ratio of next-year to current-year= 1.20). In 11-40 years, the interannual variations of litterfall gradually decreased but still varied widely, mean CV was similar to 18% and mean V-P ranged from -17.69% to 21.19%. In 41-90 years, the interannual variations minimized to 8.98% in mean CV and similar to 8% in mean V-P. As a result, forest litterfall remained relatively low and constant when stand age was larger than 40 years. This result was different from the previous assumptions that forest litterfall reached relatively stable when stand age was larger than 30, 20 or even 15 years. Our findings can improve the knowledge about forest litter ecology and provide the groundwork for carbon budget and biogeochemical qcle models at a large scale.
学科主题	Plant Sciences ; Ecology ; Forestry
电子版国际标准刊号	1752-993X
出版地	OXFORD
WOS关键词	NET PRIMARY PRODUCTIVITY ; PINE PINUS-SYLVESTRIS ; LEAF-AREA INDEX ; FUEL DYNAMICS ; CARBON ; AGE ; CLIMATE ; BIOMASS ; SUCCESSION ; GRADIENTS
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000544169500002
资助机构	National Key Research and Development Program of China [2017YFC0503906] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201406034]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21701]
专题	植被与环境变化国家重点实验室
作者单位	1.China Meteorol Adm, Inst Atmospher Environm, Shenyang 110166, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Jia, Bingrui,Sun, Hongru,Yu, Wenying,et al. Quantifying the interannual litterfall variations in China's forest ecosystems[J]. JOURNAL OF PLANT ECOLOGY,2020,13(3):266-272.
APA	Jia, Bingrui,Sun, Hongru,Yu, Wenying,&Zhou, Guangsheng.(2020).Quantifying the interannual litterfall variations in China's forest ecosystems.JOURNAL OF PLANT ECOLOGY,13(3),266-272.
MLA	Jia, Bingrui,et al."Quantifying the interannual litterfall variations in China's forest ecosystems".JOURNAL OF PLANT ECOLOGY 13.3(2020):266-272.