DOI: 10.1016/j.foreco.2016.11.020
Scopus记录号: 2-s2.0-84996805866
论文题名: The frankincense tree Boswellia neglecta reveals high potential for restoration of woodlands in the Horn of Africa
作者: Mokria M. ; Tolera M. ; Sterck F.J. ; Gebrekirstos A. ; Bongers F. ; Decuyper M. ; Sass-Klaassen U.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 385 起始页码: 16
结束页码: 24
语种: 英语
英文关键词: Boswellia neglecta
; Dendrochronology
; Growth dynamics
; Leaf-phenology
; Remote-sensing
; Restoration
Scopus关键词: Biology
; Dynamics
; Forestry
; Image reconstruction
; Moisture
; Rain
; Remote sensing
; Restoration
; Soil moisture
; Boswellia neglecta
; Dendrochronology
; Growth dynamics
; Leaf phenology
; Normalized difference vegetation index
; Remote sensing techniques
; Soil moisture deficits
; Sustainable forest
; Climate change
; anthropogenic effect
; climate change
; colonization
; dendrochronology
; dicotyledon
; forest management
; forest resource
; growing season
; growth rate
; habitat restoration
; NDVI
; phenology
; remote sensing
; soil moisture
; temporal variation
; Ethiopia
; Horn of Africa
; Boswellia neglecta
; Boswellia sacra
英文摘要: Boswellia neglecta S. Moore is a frankincense-producing tree species dominantly found in the dry woodlands of southeastern Ethiopia. Currently, the population of this socio-economically and ecologically important species is threatened by complex anthropogenic and climate change related factors. Evaluation of tree age and its radial growth dynamics in relation to climate variables helps to understand the response of the species to climate change. It is also crucial for sustainable forest resource management and utilization. Dendrochronological and remote-sensing techniques were used to study periodicity of wood formation and leaf phenology and to assess the growth dynamics of B. neglecta. The results show that B. neglecta forms two growth rings per year in the study area. The growth ring structure is characterized by larger vessels at the beginning of each growing season and smaller vessels formed later in the growing season, suggesting adaptation to decreasing soil moisture deficits at the end of the growing season. Seasonality in cambial activity matches with a bimodal leaf phenological pattern. The mean annual radial growth rate of B. neglecta trees is 2.5 mm. Tree age varied between 16 and 28 years, with an average age of 22 years. The young age of these trees indicates recent colonization of B. neglecta in the study region. The growth rate and seasonal canopy greenness (expressed by Normalized Difference Vegetation Index – NDVI) were positively correlated with rainfall, suggesting that rainfall is the main climatic factor controlling growth of B. neglecta. The observed temporal changes in leaf phenology and vessel size across the growth rings indicate that the species is drought tolerant. Therefore, it can be regarded as a key tree species for restoration of moisture-related limited areas across the Horn of Africa. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64557
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: World Agroforestry Centre (ICRAF), United Nations Avenue, Gigiri, P.O. Box 30677, Nairobi, Kenya; Forest Ecology and Forest Management Group, Wageningen University and Research, P.O. Box 47, Wageningen, AA, Netherlands; Hawassa University, Wondo Genet College of Forestry and Natural Resources, P.O. Box 128, Shashemene, Ethiopia; Laboratory of Geo-Information Science and Remote Sensing, Wageningen University and Research, P.O. Box 47, Wageningen, AA, Netherlands; Institute of Geography, Friedrich-Alexander-University Erlangen-Nuremberg, Wetterkreuz 15, 7, Erlangen, Germany
Recommended Citation:
Mokria M.,Tolera M.,Sterck F.J.,et al. The frankincense tree Boswellia neglecta reveals high potential for restoration of woodlands in the Horn of Africa[J]. Forest Ecology and Management,2017-01-01,385