scholarly journals Impact of exclosures on woody species diversity in degraded lands: the case of Lemo in Southwestern Ethiopia

Heliyon ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. e06898
Author(s):  
Abebe Fikadu ◽  
Mekuria Argaw
Keyword(s):  
Species Diversity ◽  
Woody Species ◽  
Degraded Lands ◽  
Southwestern Ethiopia ◽  
Woody Species Diversity

scholarly journals Effects of coffee management intensification in natural forests on woody species diversity and structure in Yayo district, south western Ethiopia

2019 ◽  
Vol 7 (03) ◽  
Author(s):  
Fikiru I. Gamachu ◽  
Tefera Jegora
Keyword(s):  
Species Diversity ◽  
Woody Species ◽  
Home Garden ◽  
Natural Forests ◽  
Importance Value ◽  
Southwestern Ethiopia ◽  
Woody Species Diversity ◽  
The Difference ◽  
Total Species ◽  
Western Ethiopia

This study was conducted to evaluate the difference between woody species diversity, structure and similarity in natural forests and adjacent coffee farms in Yayo district, southwestern Ethiopia. Vegetation data were collected from both land use systems using transects walk lines. The Shannon, Simpson’s, similarity and importance values index were analyzed using SPSS version 20 software. The result revealed 64 woody species belongs to 31 families from both land uses. Moraceae had the most diverse family having each 5 and 8 species in coffee farms and natural forests respectively. The species richness was higher in natural forests (54) than coffee farms (38). Coffea arabica (42.85%) and Celtis africana (21.14%) those frequently occurred had the highest importance value indices in coffee farms and natural forests respectively. Of total species recorded, 28 (43.75%) are common, 26 (40.63%) and 10 (15.62%) were unique to natural forests and coffee farms respectively. The highest number of woody plants per hectare were distributed in diameter at breast height 5-10cm having 1250 ha−1 (64.10%) in natural forests and 471 ha−1 (72.33 %) in coffee farms. The total basal areas were 364.44 and 669.84 m2 ha−1 in coffee farms and natural forests respectively. The result indicated that planting coffee in natural forests with intensified management system causes significant differences on the overall woody species diversity i.e. the structure, composition and regeneration rates of the forest. Therefore, it is recommended to plant coffees in home garden and open lands with planting multipurpose shade trees rather than cultivating it in natural forests.

Woody species diversity and coffee production in remnant semi-natural dry Afromontane Forest in Zegie Peninsula, Ethiopia

2018 ◽  
Vol 93 (5) ◽  
pp. 1793-1806 ◽  
Author(s):  
Beyene Belay ◽  
Solomon Zewdie ◽  
Wolde Mekuria ◽  
Abrham Abiyu ◽  
Dagninet Amare ◽  
...  
Keyword(s):  
Species Diversity ◽  
Woody Species ◽  
Coffee Production ◽  
Afromontane Forest ◽  
Woody Species Diversity ◽  
Dry Afromontane Forest

scholarly journals The Use of Homegarden Agroforestry Systems for Climate Change Mitigation in Lowlands of Southern Tigray, Northern Ethiopia

2019 ◽  
pp. 1-13
Author(s):  
Gebru Eyasu Siyum ◽  
Tuemay Tassew
Keyword(s):  
Climate Change ◽  
Species Diversity ◽  
Climate Change Mitigation ◽  
Woody Species ◽  
Agroforestry Systems ◽  
Carbon Stocks ◽  
Land Uses ◽  
Woody Species Diversity ◽  
Soil Carbon Stocks ◽  
Change Mitigation

Mitigation of climate change is one of the major environmental challenges facing the globe. In this context, homegarden agroforestry systems (HGAFs) have large potential for climate change mitigation. Therefore, this study was initiated to estimate the biomass and soil carbon stocks of HGAFs in relation to adjacent Natural Forest (NF). It also analyzed the relationship between woody species diversity, evenness and richness with biomass and soil carbon stocks. Three sites were purposely selected on the basis of the presence of HGAFs and NF adjacent to each other. Random sampling was used to select representative homegardens from the study population. In NF, a systematic sampling technique was employed. A total of 60 plots with a size of 10 m x 20 m were used to collect vegetation and soil data in both land uses. Soil samples were collected from each plot of the samples laid for vegetation sampling. Accordingly, 120 composite and 120 undisturbed soil samples from 0-30 cm and 30-60 cm soil depths were collected for soil organic carbon (SOC) and bulk density analysis respectively. Biomass estimation for each woody species was analyzed by using appropriate allometric equations. The result showed that the total amount of carbon stocks was 148.32±35.76 tons ha-1 and 157.27±51.61 tons ha-1 in HGAFs and adjacent NF respectively which did not vary significantly between the two studied land uses (P > 0.05). The finding also shows a positive but non-significant (P>0.05) relationship between carbon stocks and woody species diversity, richness, and evenness. Specifically, in NF lands, woody species diversity with SOC (r=0.36) and in HGAFs species richness with biomass carbon (r=0.39) was correlated positively and significantly (P=0.05). We concluded that HGAFs have the same potential as the NF for carbon stock accumulation and to counteract the loss of biomass.

scholarly journals Woody Species Diversity and Management in Homegarden Agroforestry: The Case of Shashemene District, Ethiopia

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Tefera Jegora ◽  
Zebene Asfaw ◽  
Agena Anjulo
Keyword(s):  
Species Diversity ◽  
Management Practices ◽  
Woody Species ◽  
Diversity Management ◽  
Persea Americana ◽  
Importance Value Index ◽  
Cupressus Lusitanica ◽  
Croton Macrostachyus ◽  
Woody Species Diversity ◽  
Cordia Africana

The study was conducted in Shashemene district, Ethiopia. Management-related data were collected using informal and formal surveys. Woody species diversity and related parameters were collected from 60 households. Woody species with ≥5 cm diameter at breast height (DBH) were measured and recorded and below 5 cm were counted and recorded in 10 m ∗ 10 m and 1 m ∗ 1 m plot, respectively. A total of 36 woody species were recorded, of which 58% were indigenous to the area. The overall mean number of woody species per plot was 3.13. Four woody species, namely, Cordia africana, Croton macrostachyus, Persea americana, and Catha edulis, showed highest importance value index. Farmers’ preference ranks for selected woody species were recorded in order of Cordia africana, Eucalyptus camaldulensis, Croton macrostachyus, and Cupressus lusitanica, respectively. The similarity in woody species composition between the study villages ranged from 0.46 to 0.60. To sustain the management of woody species, farmers implemented pruning, thinning, composting, weeding, digging, and watering activities in the area. Garden availability and market and road accessibility are the major determinants of woody species in homegarden agroforestry. The study revealed woody species diversity, management practices implemented, and factors affecting woody species diversity management in homegarden agroforestry. Therefore, government should be worked on infrastructure, resource reallocation, and awareness creation in communities for the better improvement of species diversity and its sustainable management in homegarden agroforestry.

Dry tropical forests and woodlands of the Cubango Basin in southern Africa – First classification and assessment of their woody species diversity

2018 ◽  
Vol 48 (1) ◽  
pp. 23-50 ◽  
Author(s):  
Rasmus Revermann ◽  
Jens Oldeland ◽  
Francisco Maiato Gonçalves ◽  
Jona Luther-Mosebach ◽  
Amândio Luis Gomes ◽  
...  
Keyword(s):  
Species Diversity ◽  
Tropical Forests ◽  
Southern Africa ◽  
Woody Species ◽  
Dry Tropical Forests ◽  
Woody Species Diversity
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