scholarly journals Review on Factors Affecting Regeneration of Indigenous Tree Species in Ethiopia

2021 ◽  
Vol 9 (1) ◽  
pp. 24
Author(s):  
Habte Wendime Gemechu ◽  
Dereje Bekele Jiru
Keyword(s):  
Tree Species ◽  
Factors Affecting ◽  
Indigenous Tree Species

scholarly journals Carbon sequestration by the indigenous tree species in the reforestation program inBangladesh‐aphanamixis polystachyaWall. and Parker

2009 ◽  
Vol 5 (2) ◽  
pp. 62-65 ◽  
Author(s):  
Danesh Miah ◽  
M. Farid Uddin ◽  
M.K. Bhuiyan ◽  
Masao Koike ◽  
Man Yong Shin
Keyword(s):  
Carbon Sequestration ◽  
Tree Species ◽  
Indigenous Tree Species ◽  
Reforestation Program

Growth performance of exotic and indigenous tree species in saline soils in Turkana, Kenya

2001 ◽  
Vol 47 (4) ◽  
pp. 499-511 ◽  
Author(s):  
Gufu Oba ◽  
Inger Nordal ◽  
Nils C. Stenseth ◽  
Jørn Stave ◽  
Charlotte S. Bjorå ◽  
...  
Keyword(s):  
Growth Performance ◽  
Tree Species ◽  
Saline Soils ◽  
Indigenous Tree Species

Tree species preferences of koalas (Phascolarctos cinereus) in the Campbelltown area south-west of Sydney, New South Wales

2000 ◽  
Vol 27 (5) ◽  
pp. 509 ◽  
Author(s):  
Stephen Phillips ◽  
John Callaghan
Keyword(s):  
Tree Species ◽  
Nutrient Status ◽  
Limiting Factors ◽  
Phascolarctos Cinereus ◽  
Factors Affecting ◽  
Faecal Pellets ◽  
South West ◽  
Independent Field ◽  
Preferred Species ◽  
Species Preferences

Tree species preferences of a koala population inhabiting a small area of forest and woodland in the Campbelltown area, south-west of Sydney, were investigated over a two-year period. In total, 2499 trees from 45 independent field sites were assessed, with tree species preferences determined on the basis of a comparative analysis of proportional data relating to the presence/absence of koala faecal pellets. The results established that grey gum (Eucalyptus punctata) and blue-leaved stringybark (E. agglomerata) were most preferred by koalas in the study area, but only when growing on shale-based substrates. The preferential utilisation of E. punctata and E. agglomerata on substrates derived from shales, compared with that recorded for the same species on sandstones, suggests that their use by koalas was influenced by differences in nutrient status between substrates. Regression analyses further identified a trend for use of at least one of the preferred species (E. punctata) to be more commonly associated with larger trees. Results are discussed in terms of their relevance to issues of resource availability and the need to reconsider, by way of a hierarchical approach, the use of food trees by koalas generally. The presence of E. punctata and E. agglomerata and their occurrence in conjunction with shale-based substrates are considered to be important limiting factors affecting the present-day distribution and abundance of koalas in the Campbelltown area.

Patterns of flowering in some indigenous tree species in the humid lowlands of Cameroon

2005 ◽  
Vol 42 (1) ◽  
Author(s):  
PM Mapongmetsem ◽  
BA Nkongmeneck ◽  
B Duguma
Keyword(s):  
Tree Species ◽  
Indigenous Tree Species ◽  
Humid Lowlands

Tree Size and Species, Stand Volume, and Tract Size: Effects on Southern Harvesting Costs

1989 ◽  
Vol 13 (3) ◽  
pp. 145-152 ◽  
Author(s):  
Frederick W. Cubbage ◽  
W. Dale Greene ◽  
John P. Lyon
Keyword(s):  
Tree Species ◽  
Size Effects ◽  
Timber Harvesting ◽  
Tree Size ◽  
Labor Costs ◽  
Production Rates ◽  
Stand Volume ◽  
Factors Affecting ◽  
Harvesting Costs ◽  
Significant Factors

Abstract Timber harvesting production rates and equipment and labor costs were used to estimate average logging costs for a variety of tract volumes and sizes, stand structures, and tree species. Average costs were estimated for conventional logging systems typical in the South. Regression analysiswas used to identify significant factors affecting the costs for each system. Highly mechanized systems were generally cheapest for harvesting southern pines, but were not much cheaper for harvesting hardwoods. Hardwoods were substantially more expensive to harvest, as were tracts of lessthan 250 cords in total volume. South. J. Appl. For. 13(3):145-152.

scholarly journals Natural Regeneration of Indigenous Tree Species in Broussonetia papyrifera Invaded Sites in Pra -Anum Forest Reserve

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Moses Kwesi Yalley ◽  
Daniel Adusu ◽  
Abdul-Rahman Bunyamin ◽  
Isaac Okyere ◽  
Austin Asare
Keyword(s):  
Tree Species ◽  
Native Species ◽  
Negative Impact ◽  
Indigenous Species ◽  
Broussonetia Papyrifera ◽  
Forest Reserve ◽  
Adequate Knowledge ◽  
Randomized Design ◽  
Indigenous Tree Species ◽  
Control And Management

Broussonetia papyrifera invasion poses a serious threat to indigenous tree species in Ghana. Many conservation scientists therefore emphasize the need to control, manage, and possibly eradicate the species. However, attempts at control and management require adequate knowledge of its ecology and impact on invaded ecosystems. Employing a complete randomized design with twenty-four (24) 20 m × 20 m plots, 12 each on invaded and uninvaded sites, this study assesses the indigenous species regeneration potential under Broussonetia papyrifera-invaded sites in the Pra-Anum forest reserve. The study provides evidence of the negative impact of Broussonetia on the regenerative capacity of the reserve, as 335 seedlings per 4800 m2 distributed over 43 species were recorded on the uninvaded site compared to 156 seedlings per 4800 m2 distributed over 31 species on the invaded site. The study, however, observed some level of resilience of species belonging to the Ulmaceae and Lecythidaceae families, as they appeared fairly represented on the invaded site. Floristic diversity was also observed to be negatively impacted by Broussonetia invasion as mean Shannon and Simpson index values of 2.39 ± 0.71 and 0.89 ± 0.08 and 1.39 ± 0.24 and 0.64 ± 0.08 were recorded on the uninvaded and invaded sites, respectively. Furthermore, the Broussonetia invasion compromised the productivity of the forest ecosystem as 4.9 ± 1.61 mean economic tree species per 400 m2 plot were recorded on the invaded site compared to 13.8 ± 1.28 per 400 m2 plot on the uninvaded site. The study, therefore, concludes that Broussonetia invasion poses a serious threat to the integrity and productivity of the Pra-Anum forest reserve. Consequently, the study recommends the control of the spread of the species to protect the integrity of the Pra-Anum forest reserve. Also, restoration efforts in invaded areas of the reserve could consider the use of native species belonging to the Ulmaceae and Lecythidaceae families as they appear to be resilient to Broussonetia invasion.

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