Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia

Agroforestry is increasingly being identified as an integrated land use enhancing plant diversity while reducing habitat loss and fragmentation. This paper examined species diversity, composition, structure and management in agroforestry systems. Two Kebeles (Kachabira and Mesafe) were purposively s...

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Main Authors: Abayneh Legesse, Mesele Negash
Format: Article
Language:English
Published: Elsevier 2021-03-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S240584402100582X
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author Abayneh Legesse
Mesele Negash
author_facet Abayneh Legesse
Mesele Negash
author_sort Abayneh Legesse
collection DOAJ
description Agroforestry is increasingly being identified as an integrated land use enhancing plant diversity while reducing habitat loss and fragmentation. This paper examined species diversity, composition, structure and management in agroforestry systems. Two Kebeles (Kachabira and Mesafe) were purposively selected for this study. Then, farmers who dominantly practiced agroforestry practices such as home garden, parkland and live fence were stratified based on wealth categories. Ten percent of the sample households were randomly selected from each wealth category. Accordingly, a total of 83 households were selected. Inventories of plant species were done by sampling one plot of each farm management type. A total of 59 plant species, belonging to 56 genera and 36 families were recorded across the home gardens, parklands and live fences in the study area. Among the plant species, trees constituted 42%, shrubs 27%, herbs 29% and climber 2%. From recorded plant species, 66% were native and the remainders 34% were introduced species. From the native species recorded in this study, Lippia adoensis and Millettia ferruginea were endemic to Ethiopia. The mean Shannon diversity index of rich, medium and poor households in the three different agroforestry practices were 1.75, 1.57 and 1.62 in home garden, 0.36, 0.30 and 0.49 in parkland and 0.84, 0.99 and 1.00 in live fence respectively. The largest tree basal area was recorded in the live fence (14.7 m2ha-1), followed by home garden and parkland. The study revealed that agroforestry plays an important role in the conservation of biodiversity, and also by providing food, income and a wide range of other products such as fuel wood, construction material, fodder, spices and medicinal plants. Farm household landholding size, species preference and management found to be the most important influencing factors that affect the diversity of plant species. Further detailed study of explicit examining of the factors such as socio-ecological effects that determine species diversity and the contribution of different functional groups to livelihood is needed to fully understand the agroforestry system.
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spelling doaj.art-20ff05d8a2bd466ea49f812f3c22114a2022-12-21T20:22:06ZengElsevierHeliyon2405-84402021-03-0173e06477Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern EthiopiaAbayneh Legesse0Mesele Negash1Forest and Rangeland Plants Biodiversity Directorate, Ethiopian Biodiversity Institute, Addis Ababa, Ethiopia; Corresponding author.Wondo Genet College of Forestry and Natural Resources, Hawassa University, Wondo Genet, EthiopiaAgroforestry is increasingly being identified as an integrated land use enhancing plant diversity while reducing habitat loss and fragmentation. This paper examined species diversity, composition, structure and management in agroforestry systems. Two Kebeles (Kachabira and Mesafe) were purposively selected for this study. Then, farmers who dominantly practiced agroforestry practices such as home garden, parkland and live fence were stratified based on wealth categories. Ten percent of the sample households were randomly selected from each wealth category. Accordingly, a total of 83 households were selected. Inventories of plant species were done by sampling one plot of each farm management type. A total of 59 plant species, belonging to 56 genera and 36 families were recorded across the home gardens, parklands and live fences in the study area. Among the plant species, trees constituted 42%, shrubs 27%, herbs 29% and climber 2%. From recorded plant species, 66% were native and the remainders 34% were introduced species. From the native species recorded in this study, Lippia adoensis and Millettia ferruginea were endemic to Ethiopia. The mean Shannon diversity index of rich, medium and poor households in the three different agroforestry practices were 1.75, 1.57 and 1.62 in home garden, 0.36, 0.30 and 0.49 in parkland and 0.84, 0.99 and 1.00 in live fence respectively. The largest tree basal area was recorded in the live fence (14.7 m2ha-1), followed by home garden and parkland. The study revealed that agroforestry plays an important role in the conservation of biodiversity, and also by providing food, income and a wide range of other products such as fuel wood, construction material, fodder, spices and medicinal plants. Farm household landholding size, species preference and management found to be the most important influencing factors that affect the diversity of plant species. Further detailed study of explicit examining of the factors such as socio-ecological effects that determine species diversity and the contribution of different functional groups to livelihood is needed to fully understand the agroforestry system.http://www.sciencedirect.com/science/article/pii/S240584402100582XBiodiversityHome gardenLive fenceParklandSpecies diversity
spellingShingle Abayneh Legesse
Mesele Negash
Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia
Heliyon
Biodiversity
Home garden
Live fence
Parkland
Species diversity
title Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia
title_full Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia
title_fullStr Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia
title_full_unstemmed Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia
title_short Species diversity, composition, structure and management in agroforestry systems: the case of Kachabira district, Southern Ethiopia
title_sort species diversity composition structure and management in agroforestry systems the case of kachabira district southern ethiopia
topic Biodiversity
Home garden
Live fence
Parkland
Species diversity
url http://www.sciencedirect.com/science/article/pii/S240584402100582X
work_keys_str_mv AT abaynehlegesse speciesdiversitycompositionstructureandmanagementinagroforestrysystemsthecaseofkachabiradistrictsouthernethiopia
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