Background: The anthropogenic global climate change has negative impacts on various sectors and communities who particularly rely on rain-fed agriculture. Parkland agroforestry practice can contribute to mitigate and adapt to the forthcoming climate change through carbon sequestration. However, empirical studies on carbon stocks potential of parklands agroforestry practices are scarce in different localities. This study assessed carbon stocks of parkland agroforestry practice at Minjar Shenkora woreda. Methodology: By using two-stage stratified random sampling technique, 4 kebeles from two agro ecology were selected and 8 farms/plots/ of 40 m*40 m sample size were selected from each kebele for the vegetation inventory. Tree species-specific allometric equations were used to determine carbon stock potential of parkland agroforestry practice. Results: The result reveal that, AGC, BGC, SOC and Total Carbon have significant variation (p<0.05) across kebeles. The mean total carbon stock of Bolo Giorgis, Bolo Slase, Agirat and Korma Agere is 48.87 Mg C ha-1, 58.21 Mg C ha-1, 57.81 Mg C ha-1and 73.71 Mg C ha-1; respectively. On average, carbon stock of parklands practice in Minjar shenkora was 59.65 Mg C ha-1. Conclusions: The parkland agroforestry practice has a large potential to deliver regulating ecosystem services like opportunities to mitigate the impending climate-changing through carbon sequestration and increasing the resilience of the agricultural system at Minjar shenkora woreda. To enhance the multiple ecosystem services of the parkland agroforestry practices in sustainable way: local by-laws should be strengthened to avoid illegal tree cutting and free grazing.
The homestead multistory agroforestry demonstration was conducted at Tarmaber district of North Shewa zone to demonstrate and evaluate model multistory agroforestry practice for its ecological and economic importance for the rural communities of the area. The demonstration in addition aimed to further enhance farmers' knowledge on this new cultivation method before any further adoption. The demonstration study was started in June 2013 as multistory agroforestry practices and established with special and temporal arrangements with three strata. The upper stratum comprised tree components, middle stratum was fruits and the lower stratum was different annual crops. The total area of a demonstration site was 0.045ha. Persea americana, Rhamnus prinoides, Coffea arabica, Musa paradisiaca, Phaseolus lunatus, Hibisicus sabdariffa and Vigna unguiculata were planted at different time of the lifetime of the study and yield data were collected. The results from this demonstration study showed that, on average 1507 kg of edible NTFPs harvested per hectare per year. Organic matter and available phosphorus were increased from 1.52 to 2.14%, and 4.26 to 15.98 ppm, respectively. In addition, this practice showed higher net present value (NPV) and benefit-cost ratio (B/C) than the two crop land 3537.36 US$ and 3.3 per ha from these different components. From this study it can be concluded that multistory agroforestry may be ecologically advantageous land use system for sustainable food, biomass production and economic return comparing with conventional agricultural practices. Therefore, future agricultural extension adoption should consider this homegarden agro-forestry practice for sustainable agricultural production and productivity especially in North Shewa areas where this practice is not well known.
Background: Jatropha curcas (L.) is drought resistant large shrub or small tree. It belongs to the genus Jatropha and the family Euphorbiaceae. It is native to tropical America, but now found abundantly in many tropical and sub-tropical regions. Jatropha curcas (L.) is one of the important species that bear seed containing oil with a potential use as biodiesel. The objective of this research is to estimate the seed oil content and variability for some tree morphological traits of Jatropha curcas population in Ethiopia. Methodology: Fourteen Jatropha curcas populations were collected at different parts of Ethiopia. Sixteen plants per plot were planted at Shewarobit site in randomized complete block design with three replications. Data on survival rate, number of branches, seed yields and growth parameters were collected from those plants. Results: The result showed that a survival rate of 85-100%, average root collar diameter was 11cm and plant height of 235 cm were recorded at the age of 39 months after planting. Different traits of Jatropha curcas indicated statistically no significant difference (p>0.05). However, slightly higher seed and oil yield (k.g/ha/year) 3016.0 & 111169.8, 2711.3 & 91235.25 were found from Chefa and R1-009 seed sources, respectively. Conclusions: Even if, there was no significant difference observed among seed sources. Hence, Chefa and R1-009 collections have slightly greater yield both in seed and oil yields. So they should be chosen for future seed sources to produce crude oil due to their relative higher seed number and oil yield.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.