DOI: 10.1016/j.foreco.2017.02.032
Scopus记录号: 2-s2.0-85013662033
论文题名: Thinning alters the early-decomposition rate and nutrient immobilization-release pattern of foliar litter in Mediterranean oak-pine mixed stands
作者: Bravo-Oviedo A. ; Ruiz-Peinado R. ; Onrubia R. ; del Río M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 391 起始页码: 309
结束页码: 320
语种: 英语
英文关键词: Foliar decomposition
; Forest management
; Litterbag
; Mediterranean mixed forest
; Plant-soil interaction
; Species interaction
Scopus关键词: Magnesium
; Needles
; Nutrients
; Plants (botany)
; Vegetation
; Leaf litter decomposition
; Litterbags
; Mixed forests
; Plant-soil interactions
; Primary productivity
; Reduced decompositions
; Species interactions
; Western Mediterranean basin
; Forestry
; canopy architecture
; coniferous forest
; deciduous forest
; decomposition
; forest management
; immobilization
; interspecific interaction
; leaf litter
; litterfall
; Mediterranean environment
; mixed forest
; nutrient dynamics
; soil-vegetation interaction
; thinning
; Pinus pinaster
; Quercus pyrenaica
英文摘要: Leaf litter decomposition is a major pathway for nutrient recycling and a chief factor controlling ecosystem primary productivity. The aim of this study was to analyze the effect of forest thinning on the early-stage foliar decomposition rate and nutrient immobilization-release pattern in a mixed Quercus pyrenaica-Pinus pinaster forest growing in the western Mediterranean basin. Two thinning treatments, differing in the intensity of canopy reduction, were compared with a control (unthinned) situation. Oak leaves showed faster decomposition rates than pine needles in unthinned plots. Intense canopy reduction (40% of basal area removed) reduced decomposition rates in both species whereas intermediate reduction (25% of basal area removed) increased decomposition of needles to a rate similar to that of oak leaves. C and N transfer from N-rich to N-poor foliar litter was not detected, indicating a marginal role of canopy reduction in this process. A decoupling of the decomposition rate from immobilization-release pattern was found for mobile elements (K and Mg) at intermediate levels of canopy cover whereas Ca dynamics indicated that pine needles had not started the lignin-mediated degradation phase two years after incubation. We finally hypothesized that strong reductions of canopy cover in dry Mediterranean sites might have an aridification effect on litter decomposition. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64415
Appears in Collections: 影响、适应和脆弱性
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作者单位: INIA-Forest Research Centre, Ctra. A Coruña, km. 7.5, Madrid, Spain; Sustainable Forest Management Research Institute, University of Valladolid & INIA, Spain
Recommended Citation:
Bravo-Oviedo A.,Ruiz-Peinado R.,Onrubia R.,et al. Thinning alters the early-decomposition rate and nutrient immobilization-release pattern of foliar litter in Mediterranean oak-pine mixed stands[J]. Forest Ecology and Management,2017-01-01,391