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Ethnobotany of an indigenous tree Piliostigma thonningii (Schumach.) Milne-Redh. (Fabaceae) in the arid and semi-arid areas of South Omo Zone, southern Ethiopia
Journal of Ethnobiology and Ethnomedicine ( IF 3.6 ) Pub Date : 2021-07-17 , DOI: 10.1186/s13002-021-00469-6
Mesfin Belete Hailemariam 1, 2 , Zerihun Woldu 2 , Zemede Asfaw 2 , Ermias Lulekal 2
Affiliation  

Trees are important components of terrestrial ecosystems; they provide ecological, economic, and cultural services to humans. There is an urgent need for undertaking ethnobotanical investigations and documentation on the indigenous botanical knowledge of the local communities of a given area. This study was conducted to assess and document the categoric ethnobotany of Piliostigma thonningii and the associated indigenous knowledge of the local people related to use, management practices, and the threatening factors in the South Omo Zone of southwestern Ethiopia. Six Kebeles were purposively selected from two districts of the zone and a total of 84 respondents were sampled, with consideration of gender, age, and wealth status. Data were collected using structured and semi-structured interviews, field observations, and group discussions. Relevant descriptive statistical methods were used to analyze the data. Ethnobotanical knowledge held by informants were computed using Pearson’s chi-square test and direct matrix ranking and pair-wise ranking was used to prioritize the uses according to community preferences and the level of the destructiveness of the reported threats. The results showed that P. thonningii provides different functions to people’s livelihoods as shade, food, fodder, soil fertility, fuelwood, medicine, rope, multipurpose materials (e.g., Borketa for sitting and head support), huts, beehives, farm implements, chairs, fences, and timber. The indigenous knowledge of local people on the uses of P. thonningii has shown significant (P < 0.05) relationship to age groups (being higher for elderly people). The consumption practice of respondents has significant (P < 0.05) association to the Kebeles, age, and income, with higher value for Hamer, lower aged groups, and low-income families. It provides nutritious animal feed to improve browse intake, survival, and productivity of domestic animals and also improve productivity of farm through amelioration of soil fertility. The status of P. thonningii has been decreasing due to agricultural expansion, collection of the species for firewood, dry fencing, and due to browsing. Respondents’ attitude and interest to maintain and conserve the species has shown a significant (P< 0.05) association to gender, wealth, and level of education. Higher interest was observed in men than women, mid-high wealth class households than low income, and people with education than uneducated. This study attempted to provide information on the multiple uses of P. thonningii. Given the key roles of P. thonningii for the people and the environment to improve household food security, agricultural productivity, and income sources and the threats to it, the need to protect it in natural forests and woodlands and optimize its uses in agroforestry systems is high. Serious consideration of this species will ultimately allow households to reap the benefits expected to accrue from it in the arid and semi-arid areas of Ethiopia where plants of this nature are usually rare.

中文翻译:

本土树木 Piliostigma thonningii (Schumach.) Milne-Redh 的民族植物学。(豆科)埃塞俄比亚南部南奥莫地区的干旱和半干旱地区

树木是陆地生态系统的重要组成部分;它们为人类提供生态、经济和文化服务。迫切需要对特定地区当地社区的本土植物学知识进行民族植物学调查和记录。这项研究的目的是评估和记录埃塞俄比亚西南部南奥莫地区 Piliostigma thonningii 的分类民族植物学以及当地居民与使用、管理实践和威胁因素有关的相关土著知识。从该开发区的两个区中特意抽取了 6 名凯贝勒人,综合考虑性别、年龄和财富状况,总共抽取了 84 名受访者。通过结构化和半结构化访谈、实地观察和小组讨论来收集数据。采用相关描述性统计方法对数据进行分析。线人掌握的民族植物学知识是使用皮尔逊卡方检验和直接矩阵排名来计算的,并且使用成对排名来根据社区偏好和所报告威胁的破坏性水平来确定使用的优先顺序。结果表明,P. thonningii 为人们的生计提供了不同的功能,如遮荫、食物、饲料、土壤肥力、薪材、药物、绳索、多用途材料(例如用于坐和头部支撑的 Borketa)、小屋、蜂箱、农具、椅子、栅栏和木材。当地人对桑宁树用途的本土知识显示出与年龄组显着相关(P < 0.05)(老年人更高)。受访者的消费行为与Kebeles、年龄和收入显着相关(P < 0.05),Hamer、低龄群体和低收入家庭的价值较高。它提供营养丰富的动物饲料,以提高家畜的采食量、生存率和生产力,并通过改善土壤肥力来提高农场的生产力。由于农业扩张、收集该物种用于柴火、干围栏和浏览,桑宁树的地位一直在下降。受访者对维持和保护物种的态度和兴趣与性别、财富和教育水平显着相关(P<0.05)。男性比女性、中高财富阶层家庭比低收入家庭、受过教育的人比未受过教育的人更感兴趣。本研究试图提供有关 P. thonningii 多种用途的信息。鉴于桑宁对人类和环境在改善家庭粮食安全、农业生产力和收入来源方面的关键作用及其所面临的威胁,需要在天然林和林地中保护它并优化其在农林业系统中的利用高的。
更新日期:2021-07-18
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