The source of energy at household level in Ethiopia mostly comes from wood biomass. The increasing population and shrinkage of natural forests resulted in shortage of wood supply for energy. Hence, looking for fast-growing with better fuel wood characteristics is required to access wood and for the supply of fuelwood consumption. This study aims to select tree species with better biomass and good fuel wood characteristics. Seven tree species: Acacia polyacantha, Acacia abyssinica, Eucalyptus camaldulensis, Albizia lophantha, Acacia melanoxylon, Acacia decurrens, and Eucalyptus globulus were selected to study the growth performance, biomass and fuel wood characteristics. Six trees per species were randomly selected and harvested for fuel wood property (wood moisture, ash content and fiber content) analysis. Acacia abyssinica, Acacia polyacantha and Eucalyptus camaldunesis showed better survival rates than other species. The better height performance was recorded from Acacia .decurrens, Acacia polyacantha, Eucalyptus camaldulensis, and Eucalyptus globules. A. polyacantha and A.decurrens provided the highest biomass. A. decurrens showed the lowest wood moisture (31.1%) and wood density (0.76 g/cm3), and the lowest ash content (2.2%). Hence, A. decurrens and A. polyacantha are recommended for fuel wood due to high density, low moisture, and low ash content and good biomass production.
{"title":"Screening of Tree Species For Fuelwood Production in The Mid-Altitudes of North Shewa, Ethiopia","authors":"M. Nigussie, Lemma Habteyohannes Habteyohannes, G. Reta, Damtew Ababu Wudinehe, Mesafint Minale Fenta, Reta Eshetu Tesideke, Abeje Tedila, Hailemariam Fisiha Fisiha, Haile Shiferaw Wolie","doi":"10.21203/RS.3.RS-153975/V1","DOIUrl":"https://doi.org/10.21203/RS.3.RS-153975/V1","url":null,"abstract":"\u0000 The source of energy at household level in Ethiopia mostly comes from wood biomass. The increasing population and shrinkage of natural forests resulted in shortage of wood supply for energy. Hence, looking for fast-growing with better fuel wood characteristics is required to access wood and for the supply of fuelwood consumption. This study aims to select tree species with better biomass and good fuel wood characteristics. Seven tree species: Acacia polyacantha, Acacia abyssinica, Eucalyptus camaldulensis, Albizia lophantha, Acacia melanoxylon, Acacia decurrens, and Eucalyptus globulus were selected to study the growth performance, biomass and fuel wood characteristics. Six trees per species were randomly selected and harvested for fuel wood property (wood moisture, ash content and fiber content) analysis. Acacia abyssinica, Acacia polyacantha and Eucalyptus camaldunesis showed better survival rates than other species. The better height performance was recorded from Acacia .decurrens, Acacia polyacantha, Eucalyptus camaldulensis, and Eucalyptus globules. A. polyacantha and A.decurrens provided the highest biomass. A. decurrens showed the lowest wood moisture (31.1%) and wood density (0.76 g/cm3), and the lowest ash content (2.2%). Hence, A. decurrens and A. polyacantha are recommended for fuel wood due to high density, low moisture, and low ash content and good biomass production.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"12 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2021-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75132724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.35248/2168-9776.21.10.259
R. Patil
{"title":"Reafforestation is the Key to Recovery and Well-Being, 2021: International Day of Forests","authors":"R. Patil","doi":"10.35248/2168-9776.21.10.259","DOIUrl":"https://doi.org/10.35248/2168-9776.21.10.259","url":null,"abstract":"","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"116 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84924542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.35248/2168-9776.21.10.282
M. Nigussie
Eucalyptus plantation has been playing a vital role in narrowing the gap between the supply and demand for wood and wood products in the region. Though eucalyptus is fast-growing and has a better survival rate compared to other exotic species, there is a claim that Eucalyptus species over exploiting the nutrients and water. This consequently led to land degradation and soil fertility decline. Hence, it is important to develop mixed plantations to minimize the gap of monocultures. This study aimed to select Acacia decurrens-Eucalyptus Camaldulensis mixed plantation to obtain better woody yield and improve site productivity than sole plantation. A. decurrens and E.camladulensis seedlings were planted with the proportions of: 0%:100%, 100%:0%, 25%:75%, 75%:25% and 50%:50%. The experiment was arranged in a randomized complete block design with three replications. Results showed that the tree height and total volume not varied significantly between the mixed and pure stand plantations. Soil nitrogen varies significantly between the treatments. The plantation with 50% E.camaldulensis and 50% A.decurrens proportion had higher total nitrogen, organic carbon and organic matter in the soil. In line with the experiment, the farmers confirmed that the 50% E. camaldulensis with 50% A.decurrens plantations had relatively a better economic benefits and soil improvements. Further investigation is required to know the contribution of each species in soil nutrient addition. Investigation of the mixed plantation of exotic and indigenous is required to optimize economic and environmental benefits.
{"title":"The Effect of Mixed Plantation on the Stand Yield and Soil Attributes of Eucalyptus globulus and Acacia decurrens in North Shewa Zone, Ethiopia","authors":"M. Nigussie","doi":"10.35248/2168-9776.21.10.282","DOIUrl":"https://doi.org/10.35248/2168-9776.21.10.282","url":null,"abstract":"Eucalyptus plantation has been playing a vital role in narrowing the gap between the supply and demand for wood and wood products in the region. Though eucalyptus is fast-growing and has a better survival rate compared to other exotic species, there is a claim that Eucalyptus species over exploiting the nutrients and water. This consequently led to land degradation and soil fertility decline. Hence, it is important to develop mixed plantations to minimize the gap of monocultures. This study aimed to select Acacia decurrens-Eucalyptus Camaldulensis mixed plantation to obtain better woody yield and improve site productivity than sole plantation. A. decurrens and E.camladulensis seedlings were planted with the proportions of: 0%:100%, 100%:0%, 25%:75%, 75%:25% and 50%:50%. The experiment was arranged in a randomized complete block design with three replications. Results showed that the tree height and total volume not varied significantly between the mixed and pure stand plantations. Soil nitrogen varies significantly between the treatments. The plantation with 50% E.camaldulensis and 50% A.decurrens proportion had higher total nitrogen, organic carbon and organic matter in the soil. In line with the experiment, the farmers confirmed that the 50% E. camaldulensis with 50% A.decurrens plantations had relatively a better economic benefits and soil improvements. Further investigation is required to know the contribution of each species in soil nutrient addition. Investigation of the mixed plantation of exotic and indigenous is required to optimize economic and environmental benefits.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"88 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82214532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.35248/2168-9776.21.10.250
Jing Chen
Alternatives to conventional agricultural farming methods, such as agroforestry systems, which merge production and environmental protection, are currently being studied. The purpose of this analysis was to measure the contribution of trees to the input and production of nutrients in crops grown in the agrosilvopastoral system in Sobral municipality, Ceara Province, Brazil. In the rainy and dry seasons, nutrient concentrations were quantified in Cordia oncocalyx Allemao (called pau-branco) trees in shade and sun leaves and at harvest time in maize leaves. Concentrations of nutrients in various soil layers (0-10, 10-20 and 20-40cm) were also quantified from the trunk of C at 0.4 and 4.0 m. Oncocalyx trees with trees. Also measured was the contribution of the trees to the nutrient input to the scheme and the nutrient production due to the elimination of maize plants. The land under the canopy of C. The maximum concentrations of total N, K, P, Fe, Cu, Zn and Mn were seen by oncocalyx. In the concentrations of maize leaf nutrients, however, few variations were noted as a result of the distance from the trunk. The trees will produce up to 35 kg ha-1 Ca, 19 kg ha-1 N and 15 kg ha-1 K, while roughly 2.3 kg N, 5.6 kg K and 0.2 kg Ca leave the maize plant shoot removal method. The conservation of trees in processing systems thus contributes greatly to the replenishment of the nutrients depleted from seed harvesting.
{"title":"Editorial Note on Input and Production of Nutrients in an Agroforestry Environment","authors":"Jing Chen","doi":"10.35248/2168-9776.21.10.250","DOIUrl":"https://doi.org/10.35248/2168-9776.21.10.250","url":null,"abstract":"Alternatives to conventional agricultural farming methods, such as agroforestry systems, which merge production and environmental protection, are currently being studied. The purpose of this analysis was to measure the contribution of trees to the input and production of nutrients in crops grown in the agrosilvopastoral system in Sobral municipality, Ceara Province, Brazil. In the rainy and dry seasons, nutrient concentrations were quantified in Cordia oncocalyx Allemao (called pau-branco) trees in shade and sun leaves and at harvest time in maize leaves. Concentrations of nutrients in various soil layers (0-10, 10-20 and 20-40cm) were also quantified from the trunk of C at 0.4 and 4.0 m. Oncocalyx trees with trees. Also measured was the contribution of the trees to the nutrient input to the scheme and the nutrient production due to the elimination of maize plants. The land under the canopy of C. The maximum concentrations of total N, K, P, Fe, Cu, Zn and Mn were seen by oncocalyx. In the concentrations of maize leaf nutrients, however, few variations were noted as a result of the distance from the trunk. The trees will produce up to 35 kg ha-1 Ca, 19 kg ha-1 N and 15 kg ha-1 K, while roughly 2.3 kg N, 5.6 kg K and 0.2 kg Ca leave the maize plant shoot removal method. The conservation of trees in processing systems thus contributes greatly to the replenishment of the nutrients depleted from seed harvesting.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"6 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90489083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.35248/2168-9776.21.10.260
S. Ali
{"title":"Imagining a Carbon-Neutral World - A World of Neutral Fashion","authors":"S. Ali","doi":"10.35248/2168-9776.21.10.260","DOIUrl":"https://doi.org/10.35248/2168-9776.21.10.260","url":null,"abstract":"","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"9 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86173100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.35248/2168-9776.21.10.256
Asifat Janet Temitope, Ogunbode Timothy Oyebamiji
Unabated exploitation of biodiversity and its consequential effects on natural environment has been of a serious concern to stakeholders globally. Thus, this study examines land use changes in Oba Hill forest reserve, Osun State, Southwestern, Nigeria between 1986 and 2016 using remote sensing technique. The study utilised satellite imageries from Landsat TM 1986, ETM 1996, 2006, and ETM+ 2016. The research revealed that the undisturbed forested area declined from 26.169 km2 in 1986 to 15.318 km2 in 2016. Also, the cultivated/disturbed forest land increased from 22.238 km2 to 41.499 km2 in 2016 whereas the built up areas decreased from 12.215 km2 to 3.805 km2. The forested lands were decreasing while the cultivated/disturbed land areas were on the increase. This implies that more of the forested lands were opened up for cultivation and other purposes while part of the built- up areas were also taken over by shrubs. Thus, there is degradation in the natural resources as a result of excessive and unguided exploitation of forest resources. It is recommended that government should put in place appropriate policies towards sound management of our natural resources to ensure a sustainable development.
{"title":"Application of Remote Sensing and GIS Techniques in Land Use Changes: A Case Study of a Forest Reserve in the Southwestern Nigeria","authors":"Asifat Janet Temitope, Ogunbode Timothy Oyebamiji","doi":"10.35248/2168-9776.21.10.256","DOIUrl":"https://doi.org/10.35248/2168-9776.21.10.256","url":null,"abstract":"Unabated exploitation of biodiversity and its consequential effects on natural environment has been of a serious concern to stakeholders globally. Thus, this study examines land use changes in Oba Hill forest reserve, Osun State, Southwestern, Nigeria between 1986 and 2016 using remote sensing technique. The study utilised satellite imageries from Landsat TM 1986, ETM 1996, 2006, and ETM+ 2016. The research revealed that the undisturbed forested area declined from 26.169 km2 in 1986 to 15.318 km2 in 2016. Also, the cultivated/disturbed forest land increased from 22.238 km2 to 41.499 km2 in 2016 whereas the built up areas decreased from 12.215 km2 to 3.805 km2. The forested lands were decreasing while the cultivated/disturbed land areas were on the increase. This implies that more of the forested lands were opened up for cultivation and other purposes while part of the built- up areas were also taken over by shrubs. Thus, there is degradation in the natural resources as a result of excessive and unguided exploitation of forest resources. It is recommended that government should put in place appropriate policies towards sound management of our natural resources to ensure a sustainable development.","PeriodicalId":35920,"journal":{"name":"林业科学研究","volume":"23 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88834464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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