Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation

Riparian forest inventory is essential in understanding the floristic biodiversity and provides necessary information on the growth trend and status of plant diversity along forest ecosystem, especially the riparian forests. This study was undertaken to assess the species diversity, growth status, a...

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Main Authors: Moses Fayiah, Baimba F. Kallon, Shikui Dong, Mathew S. James, Sanjay Singh
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:International Journal of Forestry Research
Online Access:http://dx.doi.org/10.1155/2020/2198573
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author Moses Fayiah
Baimba F. Kallon
Shikui Dong
Mathew S. James
Sanjay Singh
author_facet Moses Fayiah
Baimba F. Kallon
Shikui Dong
Mathew S. James
Sanjay Singh
author_sort Moses Fayiah
collection DOAJ
description Riparian forest inventory is essential in understanding the floristic biodiversity and provides necessary information on the growth trend and status of plant diversity along forest ecosystem, especially the riparian forests. This study was undertaken to assess the species diversity, growth status, and bio-volume of Taia riparian forest for community-based conservation intervention. In this study, we enumerated 602 individual trees, which comprised 49 species that belong to 37 genera in 25 families. In total, 14 rectangular plots of dimension 20 × 50 m2 were demarcated. All trees species within the sampled plots having diameter at breast height [Dbh] ≥7 cm were identified and height measured using the Haga altimeter, girth and measuring tape to determine the growth status. The result shows that 83% of the trees enumerated have [Dbh] that range from 7 to 30 cm, whereas 17% had [Dbh] greater than 30 cm. Funtumia africana and Trichilia heudelotii were the dominant species in almost all aspects in the study area. Meliaceae, Apocynaceae, and Mimosaceae were the dominant families with the highest species. The Shannon diversity index was 3.094, whereas the Simpson and Evenness diversity was 0.9303 and 0.4502, respectively. Other diversity indices estimated were Margalef 7.544, Equitability 0.7949, and Fisher_alpha 12.77. The overall biovolume was 283.05 m,3 with a total basal cover of 12.54 m2. Height and [Dbh] were not significantly correlated with the biovolume. Biotic pressure such as fuelwood collection, unsustainable charcoal production, pole harvesting, bushfires, and other traditional and cultural functions contributes greatly to the exploitation of the riparian forest. Therefore, urgent strategic conservation and protection measures should be adopted to prevent further degradation of forest ecosystems along river banks in the district and other ecologies in Sierra Leone.
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spelling doaj-art-ddae7ee0ec1d48cbb9fdf9d1ef079f842025-08-20T03:26:30ZengWileyInternational Journal of Forestry Research1687-93681687-93762020-01-01202010.1155/2020/21985732198573Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based ConservationMoses Fayiah0Baimba F. Kallon1Shikui Dong2Mathew S. James3Sanjay Singh4State Key Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, ChinaDepartment of Forestry, School of Natural Resources Management, Njala University, Moyamba District, Southern Province, Sierra LeoneState Key Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, ChinaDepartment of Biological Sciences, School of Environmental Sciences, Njala University, Moyamba District, Southern Province, Sierra LeoneBiodiversity and Climate Change Division, Indian Council of Forestry Research and Education, Dehradun, IndiaRiparian forest inventory is essential in understanding the floristic biodiversity and provides necessary information on the growth trend and status of plant diversity along forest ecosystem, especially the riparian forests. This study was undertaken to assess the species diversity, growth status, and bio-volume of Taia riparian forest for community-based conservation intervention. In this study, we enumerated 602 individual trees, which comprised 49 species that belong to 37 genera in 25 families. In total, 14 rectangular plots of dimension 20 × 50 m2 were demarcated. All trees species within the sampled plots having diameter at breast height [Dbh] ≥7 cm were identified and height measured using the Haga altimeter, girth and measuring tape to determine the growth status. The result shows that 83% of the trees enumerated have [Dbh] that range from 7 to 30 cm, whereas 17% had [Dbh] greater than 30 cm. Funtumia africana and Trichilia heudelotii were the dominant species in almost all aspects in the study area. Meliaceae, Apocynaceae, and Mimosaceae were the dominant families with the highest species. The Shannon diversity index was 3.094, whereas the Simpson and Evenness diversity was 0.9303 and 0.4502, respectively. Other diversity indices estimated were Margalef 7.544, Equitability 0.7949, and Fisher_alpha 12.77. The overall biovolume was 283.05 m,3 with a total basal cover of 12.54 m2. Height and [Dbh] were not significantly correlated with the biovolume. Biotic pressure such as fuelwood collection, unsustainable charcoal production, pole harvesting, bushfires, and other traditional and cultural functions contributes greatly to the exploitation of the riparian forest. Therefore, urgent strategic conservation and protection measures should be adopted to prevent further degradation of forest ecosystems along river banks in the district and other ecologies in Sierra Leone.http://dx.doi.org/10.1155/2020/2198573
spellingShingle Moses Fayiah
Baimba F. Kallon
Shikui Dong
Mathew S. James
Sanjay Singh
Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation
International Journal of Forestry Research
title Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation
title_full Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation
title_fullStr Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation
title_full_unstemmed Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation
title_short Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation
title_sort species diversity growth status and biovolume of taia river riparian forest in southern sierra leone implications for community based conservation
url http://dx.doi.org/10.1155/2020/2198573
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