scholarly journals Aboveground carbon stock is related to land cover and woody species diversity in tropical ecosystems of Eastern Ethiopia

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Dejene W. Sintayehu ◽  
Anteneh Belayneh ◽  
Nigussie Dechassa
Keyword(s):  
Species Diversity ◽  
Land Cover ◽  
Carbon Stock ◽  
Woody Species ◽  
Eastern Ethiopia ◽  
Tropical Ecosystems ◽  
Aboveground Carbon ◽  
Woody Species Diversity

scholarly journals COMPARISON OF WOODY SPECIES DIVERSITY AND POPULATION STRUCTURE STATUS ACROSS DIFFERENT MANAGEMENT PRACTICE IN THE GOLA NATURAL VEGETATION, EASTER HARARGHE, OROMIA OF ETHIOPIA

2021 ◽  
Author(s):  
Abdulbasit Hussein ◽  
Abdulbasit Hussein
Keyword(s):  
Land Use ◽  
Population Structure ◽  
Species Diversity ◽  
Diversity Index ◽  
Woody Species ◽  
Natural Vegetation ◽  
Systematic Sampling ◽  
Eastern Ethiopia ◽  
Woody Species Diversity ◽  
Sampling Procedures

The research was carried out at Gola natural vegetation eastern Ethiopia, to identify and Woody species' diversity, richness, evenness, and population structural status will be documented, as well as their diversity, richness, evenness, and population structural status will be analyzed. Using systematic sampling procedures, the woody species diversity and population structure of species were examined in 73 quadrats, each measuring 20 m × 20 m for trees and 5 m x 5 m for shrubs and climbers, within three land use systems: farm land (FL), grazing land (GL), and protected area (PA). The diameter at breast height (DBH), richness, evenness, and density of woody species were all measured in the vegetation. The Shannon Weiner Diversity Index was used to examine the diversity of vegetation. A total of 52 woody species belonging to 33 genera, and there were 24 families found. in Gola natural vegetation. Fabaceae was represented by the highest number of species comprising 8 (18.18%), 9 (25.00%) and 8 (32%) of the total number of plant species found in PA, GL, and FL. The PA site had significantly highest population density of vegetation, followed by the GL site, while the FL site had the lowest. The total basal area of PA, GL and FL were 43.73, 31.68 and 22.62 m2/ha, respectively. PA site had significantly (P= 0.042) highest Shannon’s diversity index value with mean (3.53) than the others two land use system. This result suggests significance of anthropological disturbance like grazing and farming on woody species diversity and natural forest ecosystem appeared to be adverse dependent on the category and severity of the anthropogenic disturbances.

Woody species diversity and carbon stock under different land use types at Gergera watershed in eastern Tigray, Ethiopia

2018 ◽  
Vol 93 (3) ◽  
pp. 1191-1203 ◽  
Author(s):  
Abrha Brhan Gebre ◽  
Emiru Birhane ◽  
Girmay Gebresamuel ◽  
Kiros Meles Hadgu ◽  
Lindsey Norgrove
Keyword(s):  
Land Use ◽  
Species Diversity ◽  
Carbon Stock ◽  
Woody Species ◽  
Land Use Types ◽  
Woody Species Diversity

scholarly journals Conversion of natural forests to farmlands and its associated woody species diversity and carbon stocks in a span of 33 years (1984 to 2016): in the case of southwestern Ethiopia

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 227
Author(s):  
Tamiru Kefalew ◽  
Mulugeta Betemariyam ◽  
Motuma Tolera
Keyword(s):  
Species Diversity ◽  
Carbon Stock ◽  
Woody Species ◽  
Carbon Stocks ◽  
Soil Samples ◽  
Natural Forest ◽  
Total Carbon ◽  
Forest Conversion ◽  
Woody Species Diversity ◽  
Forest Farm

Background Gura-Ferda forest is one of the Afromontane rainforests in the southwestern region of Ethiopia. However, since 1984, large parts of this forest have become increasingly disturbed and fragmented due to forest conversion into forest farm interface and farmlands. The study was conducted to assess changes of woody species diversity and carbon stock in association with the conversion of natural forest to forest farm interface and farmlands. Methods Data were collected from natural forest, forest farm interface and farmland which are historically forest lands before 1984. A total of 90 nested plots (20m×20m for natural forest and forest farm interface; 50m*100m for farmland)) were established for inventory of woody species. Three 1m×1m subplots were established to collect litter and soil samples. A total of 180 soil samples were collected. The total carbon stocks were estimated by summing carbon stock in the biomass and soil (0-60 cm depth). Results Results showed that Shannon-Wiener diversity (H’) in forest farm interface (H’ = 1.42±0.49) is significantly lower than that of natural forest (H’ = 2.72±0.31) but significantly higher than farmland (H’ = 1.08±0.57). The total carbon stocks of natural forest (388.54±161.63 Mg C ha-1) were approximately 1.53 and 2.67 times higher than that of forest farm interface (252.95±41.86 Mg C ha-1) and farmland (145.58±25.94 Mg C ha-1). Conclusion Our study revealed that along the conversion gradient of natural forest to forest farm interface and farmland there was a significant change of woody species diversity and carbon stocks.

Carbon stock and woody species diversity in homegarden agroforestry along an elevation gradient in southern Ethiopia

2020 ◽  
Vol 94 (3) ◽  
pp. 1099-1110 ◽  
Author(s):  
Emiru Birhane ◽  
Said Ahmed ◽  
Mengsteab Hailemariam ◽  
Mesele Negash ◽  
Meley Mekonen Rannestad ◽  
...  
Keyword(s):  
Species Diversity ◽  
Carbon Stock ◽  
Elevation Gradient ◽  
Woody Species ◽  
Southern Ethiopia ◽  
Woody Species Diversity

scholarly journals Woody species diversity, productivity and carbon stock potential of dry deciduous woodland in Alitash National Park, North West Ethiopia

2018 ◽  
Vol 6 (10) ◽  
Author(s):  
Amsalu Abich Andargie ◽  
Asmamaw Alemu Abtew ◽  
Tadesse Mucheye Azagew ◽  
Mequanent Tebikew Asres ◽  
Yohannis Gebremariam Grima
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Carbon Stock ◽  
Basal Area ◽  
Woody Species ◽  
Individual Species ◽  
North West ◽  
The Status ◽  
North West Ethiopia ◽  
Woody Species Diversity

Dry woodlands provide multifunctional benefits which grouped socioeconomic and ecological values. Despite these advantageous while recently threatened, the status of dry woodland attribute is not well understood, particularly Alitash National Park (ANP). Hence, woody species diversity, productivity and carbon stock potential of ANP were studied. Based on the collected data, a total of 24 woody species were identified. The computed Shannon-Wiener's diversity and evenness index were 2.11 and 0.66, respectively which indicated that moderate diversity and individual species were sparsely distributed horizontally. The study site was dominated by few individuals of woody species that exhibited the highest value of IVI. Population structure pattern of woody species showed F shape indicates the first class exhibited good regeneration. Whereas, species in the second classes interrupted the seedling establishment phase and transformation to sapling stage as a result of disturbance caused by anthropogenic, grazing and frequent firing. Stand basal area, volume and AGB were 8.57 m2ha-1, 48.15 m3ha-1 and 49.06 ton ha-1, respectively. The estimated carbon stock of the stand was 27.7 ton ha-1. In conclusion, the results of woody vegetation attributes showed ANP is affected negatively caused by different disturbance indicate the need of appropriate intervention and management system although ANP is protected.

scholarly journals Conversion of natural forests to farmlands and its associated woody species diversity and carbon stocks in a span of 33 years (1984 to 2016): in the case of southwestern Ethiopia

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 227
Author(s):  
Tamiru Kefalew ◽  
Mulugeta Betemariyam ◽  
Motuma Tolera
Keyword(s):  
Species Diversity ◽  
Carbon Stock ◽  
Woody Species ◽  
Carbon Stocks ◽  
Soil Samples ◽  
Natural Forest ◽  
Total Carbon ◽  
Forest Conversion ◽  
Woody Species Diversity ◽  
Forest Farm

Background: Gura-Ferda forest is one of the Afromontane rainforests in the southwestern region of Ethiopia. However, since 1984, large parts of this forest have become increasingly disturbed and fragmented due to forest conversion into forest farm interface and farmlands. The study was conducted to assess changes of woody species diversity and carbon stock in association with the conversion of natural forest to forest farm interface and farmlands. Methods: Data were collected from natural forest, forest farm interface and farmland which are historically forest lands before 1984. A total of 90 nested plots (20m×20m for natural forest and forest farm interface; 50m*100m for farmland)) were established for inventory of woody species. Three 1m×1m subplots were established to collect litter and soil samples. A total of 180 soil samples were collected. The total carbon stocks were estimated by summing carbon stock in the biomass and soil (0-60 cm depth). Results: Results showed that Shannon-Wiener diversity (H’) in forest farm interface (H’ = 1.57) is relatively lower than that of natural forest (H’ = 3.33) but higher than farmland (H’ = 1.42). The total carbon stocks of natural forest were approximately 1.21 and 2.54 times higher than that of forest farm interface and farmland. Conclusion: Our study revealed that the changes of Natural Forest to Forest Farm Interface and Farmland have effects on the diversity of woody species and carbon stocks.

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.

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