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Floristic Diversity of the Trees of Street Alignment and Concern of the Populations in Brazzaville

Received: 7 February 2023    Accepted: 14 March 2023    Published: 5 June 2023
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Abstract

The study of the floristic diversity of street trees and the concerns of the population is conducted in Brazzaville. The theme is oriented on the place and the interest of the trees of alignment in the urban development. The methodology is based on the systematic counting of woody trees with a diameter at breast height (dbh) ≥ 10 cm, of 32 arteries selected according to the number of trees in the line and the degree of urban development. The concern of the populations is informed via a questionnaire whose informants are selected following a non-probability sampling for convenience. The floristic inventory lists 1867 woody trees organized into 42 species, 32 genera and 16 families. The allochthonous portion dominates a flora with senescent individuals (Terminalia mantaly, Millettia laurentii, Pithecellobium dulce, Albizia lebbeck) and of dbh ≥ 70 cm. Despite a dominance of Fabaceae and Combretaceae, the biodiversity indices reveal a low degree of diversification whose equitability of taxa supports floristic similarity between boroughs. In terms of concerns, while there is unanimity about the ecosystem goods and services derived from avenue trees, the choice of taxa reveals divergences correlated with socio-professional categories. Finally, the poor practice of street trees in urban development gives a negative opinion of this stand with regard to the disservices caused to roads and structures. The roles and functions of the tree being recognized by all, the increase of the woody cover based on local species is desired in order to serve as a reservoir of biodiversity and fulfill the educational action, while underpinning the satisfaction of the daily needs of the populations.

Published in Agriculture, Forestry and Fisheries (Volume 12, Issue 3)
DOI 10.11648/j.aff.20231203.12
Page(s) 64-78
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Avenue Trees, Urban Development, Phytodiversity, Ecosystem Services, Disservices, Biodiversity Index, Brazzaville (Congo)

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    Kimpouni Victor, Bileri-Bakala Ghislain, Mamboueni Joserald Chaiph, Mahoungou Ange Piccard, Massamba-Makanda Charmes-Maidet. (2023). Floristic Diversity of the Trees of Street Alignment and Concern of the Populations in Brazzaville. Agriculture, Forestry and Fisheries, 12(3), 64-78. https://doi.org/10.11648/j.aff.20231203.12

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    Kimpouni Victor; Bileri-Bakala Ghislain; Mamboueni Joserald Chaiph; Mahoungou Ange Piccard; Massamba-Makanda Charmes-Maidet. Floristic Diversity of the Trees of Street Alignment and Concern of the Populations in Brazzaville. Agric. For. Fish. 2023, 12(3), 64-78. doi: 10.11648/j.aff.20231203.12

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    Kimpouni Victor, Bileri-Bakala Ghislain, Mamboueni Joserald Chaiph, Mahoungou Ange Piccard, Massamba-Makanda Charmes-Maidet. Floristic Diversity of the Trees of Street Alignment and Concern of the Populations in Brazzaville. Agric For Fish. 2023;12(3):64-78. doi: 10.11648/j.aff.20231203.12

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  • @article{10.11648/j.aff.20231203.12,
      author = {Kimpouni Victor and Bileri-Bakala Ghislain and Mamboueni Joserald Chaiph and Mahoungou Ange Piccard and Massamba-Makanda Charmes-Maidet},
      title = {Floristic Diversity of the Trees of Street Alignment and Concern of the Populations in Brazzaville},
      journal = {Agriculture, Forestry and Fisheries},
      volume = {12},
      number = {3},
      pages = {64-78},
      doi = {10.11648/j.aff.20231203.12},
      url = {https://doi.org/10.11648/j.aff.20231203.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aff.20231203.12},
      abstract = {The study of the floristic diversity of street trees and the concerns of the population is conducted in Brazzaville. The theme is oriented on the place and the interest of the trees of alignment in the urban development. The methodology is based on the systematic counting of woody trees with a diameter at breast height (dbh) ≥ 10 cm, of 32 arteries selected according to the number of trees in the line and the degree of urban development. The concern of the populations is informed via a questionnaire whose informants are selected following a non-probability sampling for convenience. The floristic inventory lists 1867 woody trees organized into 42 species, 32 genera and 16 families. The allochthonous portion dominates a flora with senescent individuals (Terminalia mantaly, Millettia laurentii, Pithecellobium dulce, Albizia lebbeck) and of dbh ≥ 70 cm. Despite a dominance of Fabaceae and Combretaceae, the biodiversity indices reveal a low degree of diversification whose equitability of taxa supports floristic similarity between boroughs. In terms of concerns, while there is unanimity about the ecosystem goods and services derived from avenue trees, the choice of taxa reveals divergences correlated with socio-professional categories. Finally, the poor practice of street trees in urban development gives a negative opinion of this stand with regard to the disservices caused to roads and structures. The roles and functions of the tree being recognized by all, the increase of the woody cover based on local species is desired in order to serve as a reservoir of biodiversity and fulfill the educational action, while underpinning the satisfaction of the daily needs of the populations.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Floristic Diversity of the Trees of Street Alignment and Concern of the Populations in Brazzaville
    AU  - Kimpouni Victor
    AU  - Bileri-Bakala Ghislain
    AU  - Mamboueni Joserald Chaiph
    AU  - Mahoungou Ange Piccard
    AU  - Massamba-Makanda Charmes-Maidet
    Y1  - 2023/06/05
    PY  - 2023
    N1  - https://doi.org/10.11648/j.aff.20231203.12
    DO  - 10.11648/j.aff.20231203.12
    T2  - Agriculture, Forestry and Fisheries
    JF  - Agriculture, Forestry and Fisheries
    JO  - Agriculture, Forestry and Fisheries
    SP  - 64
    EP  - 78
    PB  - Science Publishing Group
    SN  - 2328-5648
    UR  - https://doi.org/10.11648/j.aff.20231203.12
    AB  - The study of the floristic diversity of street trees and the concerns of the population is conducted in Brazzaville. The theme is oriented on the place and the interest of the trees of alignment in the urban development. The methodology is based on the systematic counting of woody trees with a diameter at breast height (dbh) ≥ 10 cm, of 32 arteries selected according to the number of trees in the line and the degree of urban development. The concern of the populations is informed via a questionnaire whose informants are selected following a non-probability sampling for convenience. The floristic inventory lists 1867 woody trees organized into 42 species, 32 genera and 16 families. The allochthonous portion dominates a flora with senescent individuals (Terminalia mantaly, Millettia laurentii, Pithecellobium dulce, Albizia lebbeck) and of dbh ≥ 70 cm. Despite a dominance of Fabaceae and Combretaceae, the biodiversity indices reveal a low degree of diversification whose equitability of taxa supports floristic similarity between boroughs. In terms of concerns, while there is unanimity about the ecosystem goods and services derived from avenue trees, the choice of taxa reveals divergences correlated with socio-professional categories. Finally, the poor practice of street trees in urban development gives a negative opinion of this stand with regard to the disservices caused to roads and structures. The roles and functions of the tree being recognized by all, the increase of the woody cover based on local species is desired in order to serve as a reservoir of biodiversity and fulfill the educational action, while underpinning the satisfaction of the daily needs of the populations.
    VL  - 12
    IS  - 3
    ER  - 

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Author Information
  • Higher Teacher Training College (ENS), Marien Ngouabi University, Brazzaville, Republic of Congo

  • National Forestry Research Institute (IRF), Brazzaville, Republic of Congo

  • National Forestry Research Institute (IRF), Brazzaville, Republic of Congo

  • Higher Teacher Training College (ENS), Marien Ngouabi University, Brazzaville, Republic of Congo

  • National Forestry Research Institute (IRF), Brazzaville, Republic of Congo

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