Biotic homogenization of dendroflora in the conditions of the megapolis (Dnipro, Ukraine)

M. Shamray, O. Didur
{"title":"Biotic homogenization of dendroflora in the conditions of the megapolis (Dnipro, Ukraine)","authors":"M. Shamray, O. Didur","doi":"10.26565/1992-4259-2022-27-07","DOIUrl":null,"url":null,"abstract":"Purpose. Biodiversity assessment and clarification of the trend towards homogenization of the dendroflora of the Shevchenko Park (Dnipro, Ukraine).\n\nMethods. Floristic methods of research are applied - elucidation of the taxonomic composition and selection of the adventitious fraction of dendroflora, methods of species richness assessment (according to the Menkhinik index and Margalef index), determination of floristic commonality (according to the Jaccard index) and floristic homogeneity (according to the Koch index of biotic dispersion), methods of ecological analysis (by biomorphs and ecomorphs), physical, physicochemical, chemical methods of soil analysis, soil biological activity, statistical methods of data processing (descriptive statistics and correlation analysis).\n\nResults. It was established that artificial stands of trees in the Shevchenko Park are capable of forming a sufficient amount of viable undergrowth of autochthonous and introduced (adventurous) species, the ratio of which is 37.0% to 63.0%. The amount of tree growth of adventive sites in the areas according to the level of recreational load is distributed as follows: with no load - 38.5% of the number of self-regenerating trees, with moderate - 68.2%, with strong - 80.5%. The indexes of species richness of Margalef and Menkhinik of self-regenerating tree species for the site with a strong recreational load turned out to be the largest (due to adventitious species) compared to the sites with no and moderate recreational load. Koch index of biotic dispersion is 50.0%. Correlation coefficients between the number of allochthonous and autochthonous tree species that have self-regenerated for the studied areas with strong, moderate and no recreational load are statistically significant (0.73, 0.76, 0.77 respectively).\n\nConclusions. On the territory of the investigated areas of the park, there are 14 tree species capable of seed self-regeneration, which taxonomically belong to 12 genera and 10 families. Of them, 9 adventive species were registered, represented by 9 genera and 7 families with the leading family Sapindaceae. The calculated index of biotic dispersion testifies to the presence of a process of floristic homogenization of the forest stand on the territory of the park. As part of the adventitious fraction of the self-regenerating dendroflora, there is an increased invasion of Ailanthus altissima and the occurrence of such neophyte species as Celtis occidentalis and Acer negundo, which indicates the penetration of alien species into the local flora and a potential threat to natural floristic diversity.","PeriodicalId":40624,"journal":{"name":"Visnyk of V N Karazin Kharkiv National University-Series Geology Geography Ecology","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Visnyk of V N Karazin Kharkiv National University-Series Geology Geography Ecology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.26565/1992-4259-2022-27-07","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Purpose. Biodiversity assessment and clarification of the trend towards homogenization of the dendroflora of the Shevchenko Park (Dnipro, Ukraine). Methods. Floristic methods of research are applied - elucidation of the taxonomic composition and selection of the adventitious fraction of dendroflora, methods of species richness assessment (according to the Menkhinik index and Margalef index), determination of floristic commonality (according to the Jaccard index) and floristic homogeneity (according to the Koch index of biotic dispersion), methods of ecological analysis (by biomorphs and ecomorphs), physical, physicochemical, chemical methods of soil analysis, soil biological activity, statistical methods of data processing (descriptive statistics and correlation analysis). Results. It was established that artificial stands of trees in the Shevchenko Park are capable of forming a sufficient amount of viable undergrowth of autochthonous and introduced (adventurous) species, the ratio of which is 37.0% to 63.0%. The amount of tree growth of adventive sites in the areas according to the level of recreational load is distributed as follows: with no load - 38.5% of the number of self-regenerating trees, with moderate - 68.2%, with strong - 80.5%. The indexes of species richness of Margalef and Menkhinik of self-regenerating tree species for the site with a strong recreational load turned out to be the largest (due to adventitious species) compared to the sites with no and moderate recreational load. Koch index of biotic dispersion is 50.0%. Correlation coefficients between the number of allochthonous and autochthonous tree species that have self-regenerated for the studied areas with strong, moderate and no recreational load are statistically significant (0.73, 0.76, 0.77 respectively). Conclusions. On the territory of the investigated areas of the park, there are 14 tree species capable of seed self-regeneration, which taxonomically belong to 12 genera and 10 families. Of them, 9 adventive species were registered, represented by 9 genera and 7 families with the leading family Sapindaceae. The calculated index of biotic dispersion testifies to the presence of a process of floristic homogenization of the forest stand on the territory of the park. As part of the adventitious fraction of the self-regenerating dendroflora, there is an increased invasion of Ailanthus altissima and the occurrence of such neophyte species as Celtis occidentalis and Acer negundo, which indicates the penetration of alien species into the local flora and a potential threat to natural floristic diversity.
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
大城市(乌克兰第聂伯罗)条件下树突植物群落的生物同质化
目的。乌克兰第聂伯罗舍甫琴科公园(Shevchenko Park, Dnipro, Ukraine)树木区系同质化趋势的生物多样性评价和澄清。应用了植物区系研究方法——阐明树木区系的分类组成和不定部分的选择,物种丰富度评价方法(根据Menkhinik指数和Margalef指数),植物区系的共性测定方法(根据Jaccard指数)和植物区系的同质性测定方法(根据Koch生物分散指数),生态分析方法(通过生物形态和生态形态),物理,物理化学,土壤化学分析方法,土壤生物活性,数据处理的统计方法(描述性统计和相关分析)。结果。结果表明,舍甫琴科公园的人工林能够形成足够数量的原生和引进(冒险)物种的生存林下植被,其比例为37.0%至63.0%。根据游憩负荷水平,各区域外生立地的树木生长量分布为:无游憩负荷占自再生乔木数的38.5%,中等游憩负荷占68.2%,强游憩负荷占80.5%。自再生树种Margalef和Menkhinik的物种丰富度指数在游憩负荷较强的立地比无游憩负荷和中等游憩负荷立地最大(由于外来物种的存在)。生物分散的科赫指数为50.0%。在有强、中、无游憩负荷的研究区,外来树种与本土树种的自再生数的相关系数分别为0.73、0.76、0.77,具有统计学意义。在调查范围内,有种子自我更新的树种14种,分类学上隶属于10科12属。其中外来种9种,隶属于7科9属,以皂荚科为主导科。计算出的生物分散指数表明,公园内的林分存在着植物区系同质化的过程。作为自再生树木植物群中不定数的一部分,Ailanthus altissima的入侵增加以及Celtis occidentalis和Acer negundo等新生物种的出现,表明外来物种对当地植物群的渗透,对自然植物区系多样性构成潜在威胁。
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 去求助
来源期刊
自引率
0.00%
发文量
22
期刊最新文献
Regarding the publication of a collective monograph under the project of the International Vysegrad Fund National participant geospatial information system in urban planning Assessment of the prospects of creating new forests in Ternopil region Biotic homogenization of dendroflora in the conditions of the megapolis (Dnipro, Ukraine) Entropy approach to assessment of the ecological state of a water course
×
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