DOI: 10.1016/j.foreco.2014.04.015
Scopus记录号: 2-s2.0-84899803868
论文题名: Litterfall and leaf litter decomposition in a central African tropical mountain forest and Eucalyptus plantation
作者: Cizungu L. ; Staelens J. ; Huygens D. ; Walangululu J. ; Muhindo D. ; Van Cleemput O. ; Boeckx P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 326 起始页码: 109
结束页码: 116
语种: 英语
英文关键词: Eucalyptus
; Litter decomposition
; Litterfall
; Tropical mountain rainforest
Scopus关键词: Decay (organic)
; Mixtures
; Ecosystem process
; Eucalyptus
; Eucalyptus plantations
; Leaf litter decomposition
; Litter decomposition
; Litterfalls
; Polyphenol content
; Tropical mountain rainforest
; Forestry
; Decay
; Eucalyptus
; Forest Litter
; Humidity
; Mixtures
; Polyphenolics
英文摘要: Litterfall and leaf litter decomposition are important ecosystem processes that rarely have been quantified for African tropical forests. Litterfall was measured in the Nyungwe pristine forest (two years) (2°28' S, 29°06' E, 1915. m a.s.l.) and a nearby Eucalyptus plantation (one year) (2°26' S, 29°05 E, 1889. m a.s.l.) in southwest Rwanda. To test the species effect and home field advantage on litter decomposition a 361-days experiment with single- and mixed-species leaf litter was carried out. The single-species litterbags were only installed in the pristine forest while the mixed-species litterbags were installed in both forest stands.Total litterfall amounted to 4.1±0.9 and 2.2±0.5tonha-1year-1 during the first year in the pristine forest and the Eucalyptus plantation, respectively; and 4.0±0.7tonha-1year-1 during the second year in the pristine forest. The contribution of leaf litter in the pristine forest was 69% in the first year and 75% in the second year. In the Eucalyptus plantation leaves contributed 79%. Litterfall peaked in the major (July-August) and minor (December-January) dry seasons and at the onset of the rainy season (September-October).In the pristine forest, the initial decay rate was highest for Cleistanthus polystachyus (CP) leaf litter (0.0330day-1), followed by the forest litter mixture (PE+CP+CG) (0.016day-1), and was lowest for Parinari excelsa (PE) (0.0094day-1). The final decay rate of CP, Carapa grandiflora (CG) and Eucalyptus litter mixture were similar (0.0014, 0.0013 and 0.0017day-1) and lower than the final decay rate of forest litter mixture (PE+CP+CG) (0.0021day-1). Decay rates could be related to litter properties such as nitrogen, lignin, Ca and polyphenol content. Mixing litter species caused a negative additive effect on the initial, while a positive additive effect was observed on the final decay rate in the pristine forest stand. Taken together, mixed-species litter showed increased mass loss compared to the expected weighed-based mass loss from the individual litter types in the mixture. Finally, stand type only affected the final decay rate of forest litter mixture (PE+CP+CG) that was lower in Eucalyptus than in pristine forest and is suggested to be caused by reduced forest floor humidity. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65910
Appears in Collections: 影响、适应和脆弱性
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作者单位: Isotope Bioscience Laboratory - ISOFYS, Ghent University, Coupure Links 653, 9000 Gent, Belgium; Faculty of Agronomy, Université Catholique de Bukavu, Avenue de la mission, BP 285, Bukavu, Congo; Instituto Multidisciplinario de Biología Vegetal - IMBIV, Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, 5000 Córdoba, Argentina; Institute of Agricultural Engineering and Soil Science, Faculty of Agricultural Sciences, Universidad Austral de Chile, Valdivia, Chile; Faculty of Agriculture, Makerere University, PB7062 Kampala, Uganda
Recommended Citation:
Cizungu L.,Staelens J.,Huygens D.,et al. Litterfall and leaf litter decomposition in a central African tropical mountain forest and Eucalyptus plantation[J]. Forest Ecology and Management,2014-01-01,326