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第三届南方林木育种研讨会

作者： Roger Arnold April Forestry(Fujian) 3rd FloorKelin BuildingNo.47 Xinpu RoadXiangcheng DistrictZhangzhou CityFujian Province 36300CHINA.

Khaya senegalensis(Desr.)***.(african mahogany or dry-zone mahogany) has long been an important multipurpose tree in its natural range in *** is valued for a wide range of non-timber traditional use products and it provides a very high quality *** the past 10 years demand for this timber has increased *** the same time,prices for Khaya timber have risen substantially due to increasing demand, increasing scarcity of trees in natural stands and limits placed on raw log exports from *** recent years,the potential of *** as a plantation species has increasingly recognised and the annual establishment rates are increasingly rapidly in seasonally-dry lowland tropical areas of Australia,Sri Lanka and other countries. Khaya senegalensis is native to sub-Saharan *** occurs in a discontinuous band between 8°and 15°N,extending from the Atlantic Ocean eastwards towards the Indian Ocean,including areas in Chad,Sudan,Uganda,Central african Republic,Benin,Cote D’lvoire,Gambia,Guinea,Guinea-Bissau,Mall,Niger,Nigeria,Senegal,Sierra Leone and *** habitats vary in altitude from 0-1800m asl,with rainfalls varying from about 400 mm to more than 1,700 mm per year and with dry seasons lasting from 4-8 months. It is thought that *** was first introduced to China more than 100 years ago by French *** it is commonly grown in coastal regions of southern China as a shade and amenity tree. Information from studies carried out in Australia along with data from southern China and other countries in Asia,has recently been used to develop a climatic profile for K. *** climatic profile has been used with climatic mapping programs to map areas climatically suited for plantations of *** in China.

关键词： Khaya senegalensis african mahogany climatic interpolation species-site matching high value timbers african mahogany(Khaya senegalensis)-a high value timber species for southern China

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Aboveground biomass allometric equations and distribution of carbon stocks of the african oak(Afzelia africana Sm.)in Burkina Faso

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Journal of Forestry Research 2020年第5期31卷 1699-1711页

作者： Larba Hubert Balima Blandine Marie Ivette Nacoulma Philippe Bayen Kangbeni Dimobe Franc¸ois N’Guessan Kouame Adjima Thiombiano West african Science Service Centre on Climate Change and Adapted Land Use(WASCAL) Graduate Research Program on Climate Change and BiodiversityUFR BiosciencesUniversity Felix Houphouet BoignyB.P.165Abidjan 31Cote d’Ivoire Department of Plant Biology and Physiology Laboratory of Plant Biology and EcologyUniversity Ouaga 1Pr.Joseph Ki-Zerbo03 B.P.7021Ouagadougou 03Burkina Faso Laboratory of Botany and Plant Ecology Department of BotanyUniversity of LomeB.P.1515LomeTogo

The significant role of tropical forest ecosystems in the global carbon budget has increased the need for accurate estimates of tropical forest *** lack of large-scale biomass allometric equations hampers the understanding of the spatial distribution of tree biomass and carbon stocks and their influencing factors in West *** study aimed to develop allometric equations to estimate aboveground biomass of african oak(Afzelia africana Sm.)in Burkina Faso and to analyze factors affecting the variability of tree biomass and carbon *** individual trees were destructively sampled in four protected areas along two climatic *** each climatic zone,log–log models were tested and fitted to each aboveground biomass component and to the total aboveground *** content in tree aboveground components was evaluated using the ash *** validated equations showed good fit and performance with high explained *** equations differed between the Sudano-sahelian zone and the Sudanian zone,except for leaf biomass *** biomass allocation and carbon content varied significantly between tree components but not between climatic *** content in tree components followed the patterns of biomass allocation with branches accounting for the highest *** the two climatic zones,carbon contents were 50.18–52.62%for leaves,54.78–54.94%for stems and 54.96–55.99%for *** biomass ranged from 509.05 to 765.56 kg tree^-1 at site level and from 620.21 to 624.48 kg tree^-1 along climatic *** content varied from 53.90%in the Sudano-sahelian zone to 54.39%in the Sudanian *** study indicated that climate does not influence aboveground biomass production and carbon sequestration of Afzelia africana along the Sudanosahelian and the Sudanian climatic zones of Burkina *** studies on climate–growth relationships should contribute to better understanding climate effects on biomass production and carbon s

关键词： african mahogany Biomass allometry Carbon storage Climatic gradient West Africa

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Effects of the urban heat island and climate change on the growth of Khaya senegalensis in Hanoi,Vietnam

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Forest Ecosystems 2018年第4期5卷 516-529页

作者： Astrid Moser-Reischl Enno Uhl Thomas Rotzer Peter Biber Tran van Con Nguyen Thanh Tan Hans Pretzsch Chair for Forest Growth and Yield Science Center of Life and Food Sciences WelhenstephanTechnical University MunichHans-Carl-von-Carlowitz-Platz 285354 FreisingGermany Vietnamese Academy of Forest Sciences Dong Ngac CommuneTu Liem DistrictHanoiVietnam Tay Nguyen University 567 Le Duan StreeBuon Ma Thuot CityDak La ProvinceVietnam

Background: Recent projections expect that Vietnam will be affected most severely by climate change with higher temperatures, more precipitation and rising sea levels. Especially increased temperatures will worsen the situations in cities, amplifying the urban heat island effect. Green infrastructures, i.e. urban trees are a common rtool to improve the urban micro-climate for humans. Vital and well growing trees provide greatest benefits such as evaporative cooling, shading, air filtering and carbon storage. However, urban tree growth is often negatively affected by urban growing conditions such as high soil sealing with compacted tree pits providing small growing spaces with limited water, nutrient and oxygen supply, further warm temperatures and high pollution emissions. This study analyzed the growth of urban and rural african mahogany(Khaya senegalensis(Desr.) A. Juss.) trees in the city of Hanoi, Vietnam and the effects of the surrounding climate conditions on tree ***: The results showed that rural african mahogany trees grew better than trees situated in the city center, which is contrary to other results on tree growth of temperate and subtropical cities worldwide. Moreover tree growth was similar regardless of the time of growth. Other results regarding stem growth of african mahogany located in different areas of Hanoi(east, west, north, city center) revealed a better growth in the northern and western outskirts of the city compared to the growth of trees in the city ***: african mahogany trees in the urban centers of Hanoi showed a decreased growth compared to rural trees,which was likely induced by a low ground-water level and high pollution rates. In view of climate change and global warming, the decreased tree growth in the city center may also affect tree service provision such as shading and cooling. Those climate mitigation solutions are strongly needed in areas severely affected by climate change and global warming such as

关键词： african mahogany Dendrochronology Ecosystem services Urban tree growth

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Mini-cutting technique for Khaya anthotheca: selection of suitable IBA concentration and nutrient solution for its vegetative propagation

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Journal of Forestry Research 2018年第1期29卷 73-84页

作者： Joamir Barbosa Filho Maria Angélica Di Carvalho Leandro Silva de Oliveira Enéas Ricardo Konzen Gilvano Ebling Brondani College of Forestry Federal University of Mato Grosso(UFMT) Institute of Agronomic Sciences Federal University of Minas Gerais (UFMG) Department of Forest Sciences Federal University of Lavras (UFLA)

Khaya anthotheca is a hardwood species from Africa and recently introduced to Brazil. This species yields high-quality wood for diverse applications, but little has been done toward an effective propagation method for large-scale production in nurseries. We evaluated the effects of different concentrations of macro and micronutrients（i.e., 100, 50 and 25% of the concentration of a referenced solution） combined with indole-3-butyric acid（IBA） at 0 and 2 g L-1 on the survival rate of mini-stumps and the survival and adventitious rooting of K. anthotheca mini-cuttings. The mini-stumps were grown from a source of seeds imported from Ghana, West Africa. The ministumps survived at a high rate（97%）. Consistently high shoot yields were obtained from the mini-stumps（average of 1.8 per mini-stump）. High survival percentage of minicuttings and adventitious rooting were observed when solutions with 100 and 50% of the nutrients concentration were combined with 2 g L-1 IBA. Histological sections analyzed through optical microscopy indicated the tissues from mini-cutting stems were juvenile, which might have stimulated adventitious rooting. These results have important implications for further work aimed at establishing propagation strategies for K. anthotheca, which are of prime importance for assisting breeding programs of this species.

关键词： african mahogany Seminal mini-garden Adventitious rooting Juvenile tissue Mini-stump

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Unveiling an important interaction in forestry:Ectomyelois muriscis and Khaya grandifoliola cankers and tree growth

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Journal of Forestry Research 2021年第3期32卷 1287-1293页

作者： Lísias Coelho AndréRTerra Nascimento Jean Carlos Santos Vinícius Flabes Silva Instituto de Ciências Agrárias Universidade Federal de UberlandiaUberlandiaBrazil Instituto de Biologia Universidade Federal de UberlandiaUberlandiaBrazil Departamento de Ecologia Universidade Federal de SergipeSergipeBrazil

african mahogany,Khaya grandifoliola ***.,is the most planted mahogany species in Brazil,and became the choice species when plantations of Brazilian mahogany,Swietenia macrophyla King became unsustainable due to their susceptibility to the shoot borer Hypsipyla grandella *** study evaluated plantation growth and the occurrence of cankers associated with Ectomyelois muriscis Dyar *** recorded plantation volume,survival,and canker incidence of a plantation established in 2010 at 6 m×5.5 m *** were collected and reared on canker bark fragments until final adult *** were frequently associated with Ectomyelois muriscis *** average incidence of the moth(2.9%)was not a significant concern,however,an extreme incidence of 45%would indicate that management strategies should be *** is the first report of Ectomyelois muriscis attacking the bark of Khaya grandifoliola in the Cerrado biome.

关键词： african mahogany Stem cankers Potential pest Stand growth

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