DOI: 10.1016/j.foreco.2017.08.002
Scopus记录号: 2-s2.0-85026899081
论文题名: Survival and growth of five Neotropical timber species in monocultures and mixtures
作者: Mayoral C. ; van Breugel M. ; Cerezo A. ; Hall J.S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 403 起始页码: 1
结束页码: 11
语种: 英语
英文关键词: Above-ground biomass
; Mixed plantations
; Mortality rates
; Overyielding
; Reforestation
Scopus关键词: Biomass
; Canals
; Clay
; Developing countries
; Ecosystems
; Forestry
; Mixtures
; Nitrogen fixation
; Reforestation
; Soils
; Timber
; Above ground biomass
; Biomass accumulation
; Facilitation effects
; International scale
; Intraspecific competition
; Mixed plantations
; Mortality rate
; Overyielding
; Ecology
英文摘要: Conversion of tropical forests to crop lands and pastures has been an on-going issue in the Neotropics for decades. Despite the fact that international agreements and incentives have tried to encourage the reforestation of degraded lands in developing countries, in Panama, the actual area reforested has been limited. One of the reasons is that one of the preferred timber species, Tectona grandis (Teak), grows poorly on the infertile and clay soils that dominate much of the country, including the Panama Canal watershed. Reforestation strategies that optimize both the economic return and the production of ecosystem services in tropical degraded lands could meet the demands of different stakeholders from local to international scales. We evaluated the growth and survival of five valuable native timber species grown in both monocultures and mixtures. In 2008 a fully replicated design with 267 plots and 21 treatments was set up. A total of 22,267 trees were annually monitored until 2015. Locally developed allometric biomass models were used to determine aboveground biomass (AGB) of each treatment in order to assess growth and productivity in monocultures and mixed plantations from five native species (Anacardium excelsium, Dalbergia retusa, Pachira quinata, Tabebuia rosea and Terminalia amazonia) that differed in key functional traits. Biomass accumulation of Terminalia amazonia monocultures far exceeded that of all other treatments, with up to 47.1 t/ha of biomass 7 years after planting. Nonetheless, individual tree growth of T. amazonia was much higher in mixtures than in monoculture, indicating that intraspecific competition started to limit growth. All target species significantly overyielded in the five-species mixture, indicating a diversity effect. The high Relative Land Output (>4) exhibited by Pachira quinata in mixture with the nitrogen fixing Dalbergia retusa indicated a facilitation effect from the latter. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64127
Appears in Collections: 影响、适应和脆弱性
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作者单位: ForestGEO, Smithsonian Tropical Research Institute, Apartado Postal 0843-03092, Panama; Yale-NUS College, 12 College Avenue West, Singapore, Singapore; Department of Biological Sciences, National University of Singapore, Singapore; Autoridad del Canal de Panamá, P.O. Box: 526725, Miami, FL, United States
Recommended Citation:
Mayoral C.,van Breugel M.,Cerezo A.,et al. Survival and growth of five Neotropical timber species in monocultures and mixtures[J]. Forest Ecology and Management,2017-01-01,403