Structural changes of common tree species populations in a managed natural forest in Brazilian Amazon

Fernanda da Silva Mendes, Renildo Medeiros da Silva, Ademir Roberto Ruschel, João Olegário Pereira de Carvalho, Aurélio Lourenço Rodrigues, Sebastião do Amaral Machado, Afonso Figueiredo Filho
{"title":"Structural changes of common tree species populations in a managed natural forest in Brazilian Amazon","authors":"Fernanda da Silva Mendes, Renildo Medeiros da Silva, Ademir Roberto Ruschel, João Olegário Pereira de Carvalho, Aurélio Lourenço Rodrigues, Sebastião do Amaral Machado, Afonso Figueiredo Filho","doi":"10.4336/2023.pfb.43e202002139","DOIUrl":null,"url":null,"abstract":"The knowledge of forest populations dynamics after logging and under the events of silvicultural treatments is important to establish management and conservation strategies. We aimed to show results of structural changes of tree species populations (from seedlings to adult trees), during 27 years in an area where reduced impact logging and silvicultural treatments were performed. In 1985 timber of trees with DBH ≥ 60 cm was logged from 400 ha, considering three volume reduction intensities (15, 25, 35%). In 1994, thinning was applied considering individuals with DBH ≥ 15 cm, and four intensities of basal area reduction (0, 30, 50, 70%). Twelve statistical treatments were performed considering the thinning combined with harvest intensities. Trees, saplings, sticks and seedlings were monitored and measured in 40 permanent sample plots. The plots were assessed in 1984, 1986, 1994, 1996, 2004 and 2011. Statistical analyses were performed using generalized linear models. Our results show that forest structure was not altered significantly even in areas where the trees basal area reduction was higher. There was no significant influence on the establishment of the main species in the area and in dynamics of the remnant forest after logging.","PeriodicalId":19940,"journal":{"name":"Pesquisa Florestal Brasileira","volume":"52 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pesquisa Florestal Brasileira","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4336/2023.pfb.43e202002139","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

The knowledge of forest populations dynamics after logging and under the events of silvicultural treatments is important to establish management and conservation strategies. We aimed to show results of structural changes of tree species populations (from seedlings to adult trees), during 27 years in an area where reduced impact logging and silvicultural treatments were performed. In 1985 timber of trees with DBH ≥ 60 cm was logged from 400 ha, considering three volume reduction intensities (15, 25, 35%). In 1994, thinning was applied considering individuals with DBH ≥ 15 cm, and four intensities of basal area reduction (0, 30, 50, 70%). Twelve statistical treatments were performed considering the thinning combined with harvest intensities. Trees, saplings, sticks and seedlings were monitored and measured in 40 permanent sample plots. The plots were assessed in 1984, 1986, 1994, 1996, 2004 and 2011. Statistical analyses were performed using generalized linear models. Our results show that forest structure was not altered significantly even in areas where the trees basal area reduction was higher. There was no significant influence on the establishment of the main species in the area and in dynamics of the remnant forest after logging.
巴西亚马逊地区经管理天然林常见树种种群结构变化
了解采伐后和造林事件下的森林种群动态对制定管理和保护策略具有重要意义。我们的目的是展示27年间在减少影响伐木和造林处理的地区树种种群结构变化的结果(从幼苗到成年树)。1985年,考虑到3种体积减少强度(15%、25%、35%),胸径≥60 cm树木的木材采伐面积为400 ha。1994年,对胸径≥15 cm的个体进行间伐,基底面积减少4种强度(0、30、50、70%)。考虑间伐和收获强度,进行了12项统计处理。对40个永久样地的树木、树苗、树枝和幼苗进行了监测和测量。分别于1984年、1986年、1994年、1996年、2004年和2011年对样地进行了评价。采用广义线性模型进行统计分析。研究结果表明,即使在基枯林面积减少较大的地区,森林结构也没有发生明显变化。采伐后对区内主要树种的建立和残存林的动态变化无显著影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
24
审稿时长
25 weeks
×
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