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	Effects of mixing pine and broadleaved tree/shrub litter on decomposition and n dynamics in laboratory microcosms
	Li, Wei1,2; Pan, Kai-wen1; Wu, Ning1; Wang, Jin-chuang1; Han, Chun-mei1,2; Liang, Xiao-lan1,2
刊名	Ecological research
	2009-07-01
卷号	24期号:4页码:761-769
关键词	Litter decomposition N dynamics Microcosm Mixed-species litter Exotic species
ISSN号	0912-3814
DOI	10.1007/s11284-008-0546-5
通讯作者	Li, wei(liwei81927@yahoo.com.cn)
英文摘要	This study was carried out to compare the ecological function of exotic pine (pinus radiata-pr) and native pine (pinus tabulaeformis-pt) in terms of litter decomposition and its related n dynamics and to evaluate if the presence of broad-leaved tree species (cercidiphyllum japonicum-cj) or shrub species (ostryopsis davidiana-od) litter would promote the decomposition of pine needles and n cycling. mass remaining, n release of the four single-species litters and mixed-species (pt + cj; pr + cj; pt + od; pr + od) litters and soil n dynamics were measured at microcosm scale during an 84-day incubation period. the pt and pr litter, with poorer substrate quality, indicated slower decomposition rates than did the cj and od litter. due to their high c/n ratios, the n mass of pt and pr litter continuously increased during the early stage of decomposition, which showed that pt and pr litter immobilized exogenous n by microbes. no significant differences of soil inorganic, dissolved organic and microbial biomass n were found between the pt and pr microcosm at each sampling. the results showed that the exotic pr performed similar ecological function to the native pt in terms of litter decomposition and n dynamics during the early stage. the presence of cj or od litter increased the decomposition rates of pine needle litter and also dramatically increased soil n availability. so it is feasible for plantation managers to consider the use of cj as an ameliorative species or to retain od in pine plantations to promote the decomposition of pine litter and increase nutrient circulation. the results also suggested that different species litters induced different soil dissolved organic nitrogen (don). as a major soluble n pool in soil, don developed a different changing tendency over time compared with inorganic n, and should be included into soil n dynamic under the condition of our study.
WOS关键词	DISSOLVED ORGANIC NITROGEN ; LEAF-LITTER ; NUTRIENT RELEASE ; PLANT RESIDUES ; FOREST SOILS ; QUALITY ; MIXTURES ; MINERALIZATION ; STANDS ; PLANTATIONS
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
语种	英语
出版者	SPRINGER TOKYO
WOS记录号	WOS:000267680600006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2401016
专题	中国科学院大学
通讯作者	Li, Wei
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Li, Wei,Pan, Kai-wen,Wu, Ning,et al. Effects of mixing pine and broadleaved tree/shrub litter on decomposition and n dynamics in laboratory microcosms[J]. Ecological research,2009,24(4):761-769.
APA	Li, Wei,Pan, Kai-wen,Wu, Ning,Wang, Jin-chuang,Han, Chun-mei,&Liang, Xiao-lan.(2009).Effects of mixing pine and broadleaved tree/shrub litter on decomposition and n dynamics in laboratory microcosms.Ecological research,24(4),761-769.
MLA	Li, Wei,et al."Effects of mixing pine and broadleaved tree/shrub litter on decomposition and n dynamics in laboratory microcosms".Ecological research 24.4(2009):761-769.

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