DOI: 10.1016/j.foreco.2016.01.003
Scopus记录号: 2-s2.0-84953410067
论文题名: Effects of understory plant root growth into the litter layer on the leaf litter decomposition of two woody species in a subtropical forest
作者: Wang F.-C. ; Fang X.-M. ; Ding Z.-Q. ; Wan S.-Z. ; Chen F.-S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 364 起始页码: 39
结束页码: 45
语种: 英语
英文关键词: Litter quality
; Nitrogen
; Phosphorus
; Subtropical forest
; Understory plants
Scopus关键词: Decomposition
; Ecosystems
; Nitrogen
; Phosphorus
; Plants (botany)
; Tropics
; Vehicles
; Forest ecosystem
; Leaf litter decomposition
; Litter decomposition
; Litter quality
; Root proliferation
; Subtropical forests
; Understory plants
; Woody species
; Forestry
; Liquidambar formosana
; Loropetalum chinense
; Pinus elliottii
英文摘要: Root growth into the litter layer occurs in many forest ecosystems, but its effect on litter decomposition is not well understood. An experiment with two factors and two levels (the litters of Pinus elliottii needles with higher carbon/nitrogen (C/N) and carbon/phosphorous (C/P) ratios vs. Liquidambar formosana leaves with lower C/N and C/P ratios, with and without Loropetalum chinense roots grown into the litters) was conducted in situ using the nylon net bag method in a subtropical forest. Organic C (OC), N, and P concentrations in decomposing litters, as well as litter and root masses, were measured at 3, 9, 12, 18, and 24. months. Our results showed that the presence of roots generally increased the rates of mass loss, and OC, N, and P releases, and decreased the OC and N concentrations, but did not alter the P concentration and the C/N, C/P, and N/P ratios in the decomposing litters of both woody species. The influencing intensity of root presence was stronger on the decomposition of L. formosana than P. elliottii litters. Root proliferation percentage in decomposing litters was generally lower in P. elliottii than in L. formosana litters from months 1-12, but showed opposite trend in months 12-24. In conclusion, the interaction between root growth and litter decomposition might depend on litter quality, and it might vary with the stage of decomposition. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65042
Appears in Collections: 影响、适应和脆弱性
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作者单位: Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, College of Forestry, Jiangxi Agricultural University, Nanchang, China
Recommended Citation:
Wang F.-C.,Fang X.-M.,Ding Z.-Q.,et al. Effects of understory plant root growth into the litter layer on the leaf litter decomposition of two woody species in a subtropical forest[J]. Forest Ecology and Management,2016-01-01,364