延迟放牧制度对牧场生产力和健康的影响:坦桑尼亚北部西曼吉罗区案例研究

IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY
Eliengerasia Godliving Koka , Alfred Kihanju Chitiki , Ismail S․ Selemani , Urs Schaffner , Charles Joseph Kilawe
{"title":"延迟放牧制度对牧场生产力和健康的影响:坦桑尼亚北部西曼吉罗区案例研究","authors":"Eliengerasia Godliving Koka ,&nbsp;Alfred Kihanju Chitiki ,&nbsp;Ismail S․ Selemani ,&nbsp;Urs Schaffner ,&nbsp;Charles Joseph Kilawe","doi":"10.1016/j.rama.2024.02.004","DOIUrl":null,"url":null,"abstract":"<div><p>Deferred grazing regimes are viewed as a grazing management strategy that can aid in the enhancement of rangeland productivity and health. However, there is limited empirical evidence from drylands of East Africa. This study investigated the effects of deferred grazing regime on rangeland productivity and health in northern Tanzania. Aboveground vegetation biomass, plant species composition and diversity, as well as soil organic carbon (SOC) were assessed in 45 rectangular sample plots (20 × 50 m) which were randomly distributed in a rangeland subjected to deferred grazing for 8 years. For control adjacent rangelands subjected to continuous grazing management were evaluated. Statistical analyses were performed using an independent <em>t-</em>test to discern differences in vegetation biomass, SOC, species abundance and diversity between the two grazing regimes. Additionally, Multivariate General Linear Model (MvGLM) were performed to test if grazing system affected vegetation composition. Results revealed that the herbaceous biomass, SOC, and the richness of shrubs (with a diameter at breast height, or DBH ≥5 cm and &lt;10 cm) and trees (DBH ≥10 cm) were higher in rangeland subjected to deferred grazing, in comparison to the rangeland under continuous grazing regime. Moreover, rangeland under continuous grazing was found to be more heavily invaded by non-native plant species, notably the invasive weeds <em>Prosopis juliflora</em> and <em>Calotropis procera.</em> The findings of this study suggest that rangelands in the study area can be both more productive and healthier when managed under a deferred grazing regime, as compared to continuously grazing rangeland.</p></div>","PeriodicalId":49634,"journal":{"name":"Rangeland Ecology & Management","volume":"94 ","pages":"Pages 119-126"},"PeriodicalIF":2.4000,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of Deferred Grazing Regime on Rangeland Productivity and Health: A Case Study of Simanjiro District in Northern Tanzania\",\"authors\":\"Eliengerasia Godliving Koka ,&nbsp;Alfred Kihanju Chitiki ,&nbsp;Ismail S․ Selemani ,&nbsp;Urs Schaffner ,&nbsp;Charles Joseph Kilawe\",\"doi\":\"10.1016/j.rama.2024.02.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Deferred grazing regimes are viewed as a grazing management strategy that can aid in the enhancement of rangeland productivity and health. However, there is limited empirical evidence from drylands of East Africa. This study investigated the effects of deferred grazing regime on rangeland productivity and health in northern Tanzania. Aboveground vegetation biomass, plant species composition and diversity, as well as soil organic carbon (SOC) were assessed in 45 rectangular sample plots (20 × 50 m) which were randomly distributed in a rangeland subjected to deferred grazing for 8 years. For control adjacent rangelands subjected to continuous grazing management were evaluated. Statistical analyses were performed using an independent <em>t-</em>test to discern differences in vegetation biomass, SOC, species abundance and diversity between the two grazing regimes. Additionally, Multivariate General Linear Model (MvGLM) were performed to test if grazing system affected vegetation composition. Results revealed that the herbaceous biomass, SOC, and the richness of shrubs (with a diameter at breast height, or DBH ≥5 cm and &lt;10 cm) and trees (DBH ≥10 cm) were higher in rangeland subjected to deferred grazing, in comparison to the rangeland under continuous grazing regime. Moreover, rangeland under continuous grazing was found to be more heavily invaded by non-native plant species, notably the invasive weeds <em>Prosopis juliflora</em> and <em>Calotropis procera.</em> The findings of this study suggest that rangelands in the study area can be both more productive and healthier when managed under a deferred grazing regime, as compared to continuously grazing rangeland.</p></div>\",\"PeriodicalId\":49634,\"journal\":{\"name\":\"Rangeland Ecology & Management\",\"volume\":\"94 \",\"pages\":\"Pages 119-126\"},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2024-03-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rangeland Ecology & Management\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1550742424000174\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ECOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rangeland Ecology & Management","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1550742424000174","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

推迟放牧制度被视为一种放牧管理策略,有助于提高牧场的生产力和健康水平。然而,东非干旱地区的经验证据有限。本研究调查了延迟放牧制度对坦桑尼亚北部牧场生产力和健康的影响。研究人员在延缓放牧 8 年的牧场中随机选取了 45 个矩形样地(20 × 50 米),对地上植被生物量、植物物种组成和多样性以及土壤有机碳(SOC)进行了评估。作为对照,对邻近的持续放牧管理牧场进行了评估。采用独立 t 检验法进行统计分析,以确定两种放牧制度在植被生物量、SOC、物种丰度和多样性方面的差异。此外,还采用多变量一般线性模型(MvGLM)检验放牧制度是否影响植被组成。结果显示,与连续放牧的牧场相比,延迟放牧的牧场草本生物量、SOC、灌木(胸径≥5厘米和10厘米)和乔木(胸径≥10厘米)的丰富度更高。此外,连续放牧的牧场受到非本地植物物种的入侵更严重,尤其是入侵性杂草糙叶桉和菖蒲。研究结果表明,与连续放牧的牧场相比,在延缓放牧制度下管理的牧场产量更高、更健康。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of Deferred Grazing Regime on Rangeland Productivity and Health: A Case Study of Simanjiro District in Northern Tanzania

Deferred grazing regimes are viewed as a grazing management strategy that can aid in the enhancement of rangeland productivity and health. However, there is limited empirical evidence from drylands of East Africa. This study investigated the effects of deferred grazing regime on rangeland productivity and health in northern Tanzania. Aboveground vegetation biomass, plant species composition and diversity, as well as soil organic carbon (SOC) were assessed in 45 rectangular sample plots (20 × 50 m) which were randomly distributed in a rangeland subjected to deferred grazing for 8 years. For control adjacent rangelands subjected to continuous grazing management were evaluated. Statistical analyses were performed using an independent t-test to discern differences in vegetation biomass, SOC, species abundance and diversity between the two grazing regimes. Additionally, Multivariate General Linear Model (MvGLM) were performed to test if grazing system affected vegetation composition. Results revealed that the herbaceous biomass, SOC, and the richness of shrubs (with a diameter at breast height, or DBH ≥5 cm and <10 cm) and trees (DBH ≥10 cm) were higher in rangeland subjected to deferred grazing, in comparison to the rangeland under continuous grazing regime. Moreover, rangeland under continuous grazing was found to be more heavily invaded by non-native plant species, notably the invasive weeds Prosopis juliflora and Calotropis procera. The findings of this study suggest that rangelands in the study area can be both more productive and healthier when managed under a deferred grazing regime, as compared to continuously grazing rangeland.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
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.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信