Roles of Maasai Alalili Systems in Sustainable Conservation of Fodder Species of East African Rangelands

IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY
Elkana Hezron, Issakwisa B. Ngondya, Linus K. Munishi
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引用次数: 0

Abstract

Alalili systems are among the indigenous rangeland management strategies that face pressures from unsustainable land use practices and impacts of climate change. We aimed to establish the vascular fodder plants' composition and abundance, compared with historical vegetation data to understand their evolution and trends to inform sustainable management of rangelands in northern Tanzania. The vegetation composition of the northern Tanzania rangelands surveyed before the 1980s was compared to empirical data from a vegetation survey of Alalili in 2022. A cross-sectional design using purposive and stratified random sampling techniques was applied during the field survey. The quadrat count method was used to estimate the composition and diversity of fodder taxa in Alalili systems. Secondary data from the northern Tanzania rangelands before the 1980s were collected through a systematic literature review. Key informant interviews, focused group discussions, and household surveys were used to gather information about the community's knowledge of historical quality changes in the rangelands. Our results indicate that, before the 1980s, the rangelands of northern Tanzania had relatively higher fodder species composition (127 woody and 119 herbaceous species) than the Alalili systems in 2022 (119 woody and 82 herbaceous species). Fodder species composition and diversity were relatively higher in communal than in private Alalili (t = 4.18, P < 0.001). At the same time, the species density was lower in communal than in private Alalili (t = -2.7272, P = 0.008). This work suggests that Alalili systems still hold substantial diverse fodder plants that most northern Tanzanian rangelands used to harbor before the 1980s. Therefore, they can be considered reservoirs of vital fodder species that can be used to restore degraded rangeland areas in northern Tanzania and elsewhere.
马赛Alalili系统在东非牧场饲料物种可持续保护中的作用
Alalili系统是面临不可持续土地利用做法和气候变化影响压力的土著牧场管理战略之一。我们的目的是建立维管饲料植物的组成和丰度,并与历史植被数据进行比较,以了解它们的演变和趋势,为坦桑尼亚北部牧场的可持续管理提供信息。将20世纪80年代之前调查的坦桑尼亚北部牧场的植被组成与2022年Alalili植被调查的经验数据进行了比较。在实地调查中,采用了有目的分层随机抽样技术的横断面设计。采用样方计数法估算了Alalili系统中饲料类群的组成和多样性。通过系统的文献综述收集了20世纪80年代以前坦桑尼亚北部牧场的次要数据。采用关键信息者访谈、焦点小组讨论和入户调查等方法收集社区对牧场历史质量变化的认识。结果表明,在20世纪80年代之前,坦桑尼亚北部牧场的饲料种类组成(127种木本和119种草本)在2022年相对高于Alalili系统(119种木本和82种草本)。群落禾草的饲料种类组成和多样性高于群落禾草(t = 4.18,P <;0.001)。群落群落的物种密度低于群落群落(t = -2.7272,P = 0.008)。这项工作表明,Alalili系统仍然拥有大量多样化的饲料植物,这些植物在20世纪80年代之前曾是坦桑尼亚北部大多数牧场的栖息地。因此,它们可被视为重要饲料物种的储存库,可用于恢复坦桑尼亚北部和其他地方退化的牧场地区。
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来源期刊
Rangeland Ecology & Management
Rangeland Ecology & Management 农林科学-环境科学
CiteScore
4.60
自引率
13.00%
发文量
87
审稿时长
12-24 weeks
期刊介绍: Rangeland Ecology & Management publishes all topics-including ecology, management, socioeconomic and policy-pertaining to global rangelands. The journal''s mission is to inform academics, ecosystem managers and policy makers of science-based information to promote sound rangeland stewardship. Author submissions are published in five manuscript categories: original research papers, high-profile forum topics, concept syntheses, as well as research and technical notes. Rangelands represent approximately 50% of the Earth''s land area and provision multiple ecosystem services for large human populations. This expansive and diverse land area functions as coupled human-ecological systems. Knowledge of both social and biophysical system components and their interactions represent the foundation for informed rangeland stewardship. Rangeland Ecology & Management uniquely integrates information from multiple system components to address current and pending challenges confronting global rangelands.
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