气候、土地管理和收获模式对西非半干旱地区紫檀生态特征和种群结构的影响

Q2 Environmental Science Environmental Challenges Pub Date : 2024-09-19 DOI:10.1016/j.envc.2024.101012
{"title":"气候、土地管理和收获模式对西非半干旱地区紫檀生态特征和种群结构的影响","authors":"","doi":"10.1016/j.envc.2024.101012","DOIUrl":null,"url":null,"abstract":"<div><div>Multipurpose woody plant species experience severe pressure owing to human overexploitation, land management and climate change. In response to their inability to cope with environmental disturbances in their natural range, some species such as <em>Pterocarpus lucens</em> migrate to more suitable areas. To better conserve <em>P. lucens</em>, this study examined the impacts of climate, land management and harvesting practices on its natural populations.</div><div>This study was conducted in Burkina Faso using a combined gradient approach involving two climatic zones and two land management types. Data on the biological age classes, structural traits and intensities of harvesting were collected on each individual of the species. Linear models were used to assess the effects of the investigated gradients on structural traits of the species. The diameter and height class size distributions were evaluated using the least squares method.</div><div>The results showed that the species’ pre-reproductive individuals increased significantly (<em>p</em> &lt; 0.05) with climatic and the protection gradient, resulting in an invasive trend of <em>P. lucens</em> in the Sudano-Sahelian protected areas. The species is overexploited in unprotected areas, with the majority of individuals undergoing all pruning intensities. However, while in the Sahelian climatic zone, decreasing pruning rates were observed according to the severity gradient (low intensity 36.02 %, moderate intensity 27.47 %, and severe intensity 19.73 %), an increasing pruning rate was observed in the Sudan-Sahelian climatic zone (low intensity 16.49 %, moderate intensity 17.38 %, severe intensity 24.48 %, and very severe intensity 35.79 %). Linear regression analysis showed a significant effect (<em>p</em> &lt; 0.05) of climate, land management, pruning, and debarking on the structural traits of the species. The diameter class structure revealed unstable populations of the adult stratum in the Sahelian climatic zone, regardless of the land management types. The juvenile stratum of this species exhibited an unstable structure in unprotected areas, regardless of climatic zone.</div><div>This study highlights the urgent need to implement effective management strategies to mitigate the decline of <em>P. lucens</em> populations in the Sahelian climatic zone and in unprotected areas through its integration in reforestation programmes.</div></div>","PeriodicalId":34794,"journal":{"name":"Environmental Challenges","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Impact of climate, land management and harvesting patterns on the ecological traits and the population structure of Pterocarpus lucens in West African semi-arid areas\",\"authors\":\"\",\"doi\":\"10.1016/j.envc.2024.101012\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Multipurpose woody plant species experience severe pressure owing to human overexploitation, land management and climate change. In response to their inability to cope with environmental disturbances in their natural range, some species such as <em>Pterocarpus lucens</em> migrate to more suitable areas. To better conserve <em>P. lucens</em>, this study examined the impacts of climate, land management and harvesting practices on its natural populations.</div><div>This study was conducted in Burkina Faso using a combined gradient approach involving two climatic zones and two land management types. Data on the biological age classes, structural traits and intensities of harvesting were collected on each individual of the species. Linear models were used to assess the effects of the investigated gradients on structural traits of the species. The diameter and height class size distributions were evaluated using the least squares method.</div><div>The results showed that the species’ pre-reproductive individuals increased significantly (<em>p</em> &lt; 0.05) with climatic and the protection gradient, resulting in an invasive trend of <em>P. lucens</em> in the Sudano-Sahelian protected areas. The species is overexploited in unprotected areas, with the majority of individuals undergoing all pruning intensities. However, while in the Sahelian climatic zone, decreasing pruning rates were observed according to the severity gradient (low intensity 36.02 %, moderate intensity 27.47 %, and severe intensity 19.73 %), an increasing pruning rate was observed in the Sudan-Sahelian climatic zone (low intensity 16.49 %, moderate intensity 17.38 %, severe intensity 24.48 %, and very severe intensity 35.79 %). Linear regression analysis showed a significant effect (<em>p</em> &lt; 0.05) of climate, land management, pruning, and debarking on the structural traits of the species. The diameter class structure revealed unstable populations of the adult stratum in the Sahelian climatic zone, regardless of the land management types. The juvenile stratum of this species exhibited an unstable structure in unprotected areas, regardless of climatic zone.</div><div>This study highlights the urgent need to implement effective management strategies to mitigate the decline of <em>P. lucens</em> populations in the Sahelian climatic zone and in unprotected areas through its integration in reforestation programmes.</div></div>\",\"PeriodicalId\":34794,\"journal\":{\"name\":\"Environmental Challenges\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Challenges\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2667010024001781\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Challenges","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667010024001781","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0

摘要

由于人类的过度开发、土地管理和气候变化,多用途木本植物物种承受着巨大的压力。由于无法应对其自然分布区的环境干扰,一些物种(如紫檀)迁移到了更合适的地区。为了更好地保护紫檀,本研究考察了气候、土地管理和采伐方式对紫檀自然种群的影响。本研究在布基纳法索进行,采用了综合梯度法,涉及两个气候带和两种土地管理类型。研究收集了每个物种个体的生物年龄等级、结构特征和采伐强度数据。采用线性模型评估了所调查梯度对物种结构特征的影响。结果表明,随着气候和保护梯度的变化,该物种繁殖前个体的数量显著增加(p <0.05),导致苏达诺-萨赫勒保护区的露兜树呈入侵趋势。该物种在未受保护地区被过度开发,大多数个体都经历了各种强度的修剪。然而,在萨赫勒气候区,根据严重程度梯度观察到的修剪率是递减的(低强度 36.02 %、中等强度 27.47 % 和严重强度 19.73 %),而在苏丹-萨赫勒气候区观察到的修剪率是递增的(低强度 16.49 %、中等强度 17.38 %、严重强度 24.48 % 和极严重强度 35.79 %)。线性回归分析表明,气候、土地管理、修剪和去皮对树种的结构特征有显著影响(p < 0.05)。直径等级结构显示,在萨赫勒气候区,无论土地管理类型如何,成年层的种群都不稳定。这项研究强调,迫切需要实施有效的管理策略,通过将鲁冠球纳入重新造林计划,缓解萨赫勒气候区和未受保护地区鲁冠球种群数量的下降。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Impact of climate, land management and harvesting patterns on the ecological traits and the population structure of Pterocarpus lucens in West African semi-arid areas
Multipurpose woody plant species experience severe pressure owing to human overexploitation, land management and climate change. In response to their inability to cope with environmental disturbances in their natural range, some species such as Pterocarpus lucens migrate to more suitable areas. To better conserve P. lucens, this study examined the impacts of climate, land management and harvesting practices on its natural populations.
This study was conducted in Burkina Faso using a combined gradient approach involving two climatic zones and two land management types. Data on the biological age classes, structural traits and intensities of harvesting were collected on each individual of the species. Linear models were used to assess the effects of the investigated gradients on structural traits of the species. The diameter and height class size distributions were evaluated using the least squares method.
The results showed that the species’ pre-reproductive individuals increased significantly (p < 0.05) with climatic and the protection gradient, resulting in an invasive trend of P. lucens in the Sudano-Sahelian protected areas. The species is overexploited in unprotected areas, with the majority of individuals undergoing all pruning intensities. However, while in the Sahelian climatic zone, decreasing pruning rates were observed according to the severity gradient (low intensity 36.02 %, moderate intensity 27.47 %, and severe intensity 19.73 %), an increasing pruning rate was observed in the Sudan-Sahelian climatic zone (low intensity 16.49 %, moderate intensity 17.38 %, severe intensity 24.48 %, and very severe intensity 35.79 %). Linear regression analysis showed a significant effect (p < 0.05) of climate, land management, pruning, and debarking on the structural traits of the species. The diameter class structure revealed unstable populations of the adult stratum in the Sahelian climatic zone, regardless of the land management types. The juvenile stratum of this species exhibited an unstable structure in unprotected areas, regardless of climatic zone.
This study highlights the urgent need to implement effective management strategies to mitigate the decline of P. lucens populations in the Sahelian climatic zone and in unprotected areas through its integration in reforestation programmes.
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
Environmental Challenges
Environmental Challenges Environmental Science-Environmental Engineering
CiteScore
8.00
自引率
0.00%
发文量
249
审稿时长
8 weeks
期刊最新文献
Long-term monitoring, predicting and connection between built-up land and urban heat island patterns based on remote sensing data Overcoming barriers to proactive plastic recycling toward a sustainable future Development of a brand value measurement model with a corporate social responsibility perspective. A comparative analysis of consumer perception of energy providers in Spain and Colombia Application of meta-heuristic hybrid models in estimating the average air temperature of Caspian sea coast of Iran Global change drives potential niche contraction and range shift of globally threatened African vulture
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1