Evaluation of plant species diversity in the road dividers of Dhaka City

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Bangladesh Journal of Plant Taxonomy Pub Date : 2021-06-22 DOI:10.3329/bjpt.v28i1.54214

M. Z. Uddin, A. Shomrat, S. Hasan, Robin Khan, Abdur Rahman Fahad, Al Amin

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引用次数: 1

Abstract

The present study aims to evaluate the present status of plant species diversity in the road dividers of Dhaka city. A total of 90 plant species under 73 genera and 42 families have been recorded from the road dividers of Dhaka city. Analysis showed that among the 90 species, the most abundant plant species in the road divider are Mimusops elengi (Bakul) Polyalthia longifolia (Debdaru), Leucaena leucocephala (Epil-epil), Tabernaemontana divaricata (Togor) and Swietenia mahagoni (Mahagoni). In case of dominant analysis based important value index showed that Mimusops elengi is the top dominant plant species followed by Polyalthia longifolia, Leucaena leucocephala, Tabernaemontana divaricata and Swietenia mahagoni respectively. These plant species have also showed the higher relative density, relative frequency and relative abundance. The percentage of native and exotic species was found here 44% and 56%, respectively. Most abundant and dominant plant species in the road dividers are exotics including Mimusops elengi,Polyalthia longifolia, Leucaena leucocephala and Swietenia mahagoni. Species diversity value was found higher in Hatirjeel site whereas lowest in Baridhara- Badda site. A number of recommendations are made based on the present results for the management of plant species diversity in the road dividers of Dhaka city. Some recommended native plant species for plantation according to the width and soil depth in the road dividers are Cassia fistula, Holarrhena pubescens, Firmiana colorata, Shorea robusta, Miliusa valutina, Butea monosperma, Alstonia scholaris, Toona ciliata, Ficus racemosa, Bombax ceiba, Woodfordia fruticosa, Melastoma malabathricum, Sterculia villosa, Grewia microcos, Syzygium cumini, Tabernaemontana divaricata, Ixora coccinea, Terminalia bellirica, Terminalia arjuna and also native seasonal flowers. Bangladesh J. Plant Taxon. 28(1): 141-154, 2021 (June)

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达卡市道路分隔带植物物种多样性评价

本研究旨在评估达卡市道路分隔带植物物种多样性的现状。达卡市道路分隔带共记录了42科73属90种植物。分析表明，在90种植物中，道路分隔带中植物种类最丰富的是Mimusops elengi（Bakul）Polyathia longifolia（Debdaru）、银合欢（Epil Epil）、Tabernaemontana divarica（Togor）和Swietenia mahagoni（mahagoni）。在优势分析的基础上，重要价值指数表明，锦葵是最具优势的植物种，其次是长叶硫黄、银合欢、大白Tabernaemontana divarica和大花Swietenia mahagoni。这些植物种类也表现出较高的相对密度、相对频率和相对丰度。本地物种和外来物种的比例分别为44%和56%。道路分隔带中最丰富和占主导地位的植物物种是外来物种，包括埃伦吉水杨、长叶多糖、银合欢和马哈格尼Swietenia。物种多样性值在Hatirjeel站点较高，而在Baridhara-Badda站点最低。根据目前的结果，对达卡市道路分隔带植物物种多样性的管理提出了一些建议。根据道路分隔带的宽度和土壤深度，推荐种植的一些本地植物种类有：决明子、毛知母、厚壁厚壁菌、粗壮肖氏菌、瓦卢蒂娜、单孢布菌、小Alstonia scholaris、Toona cilia、Ficus racemosa、Bombax ceiba、Woodfordia fruticosa、Melatomat malabatricum、长毛Sterculia villosa、Grewia microcos、Syzygium cumini、，Tabernaemontana divarica、Ixora coccina、Terminalia bellrica、Terminalia arjuna以及当地时令花卉。孟加拉国植物分类学杂志。28（1）：2021年6月14日至154日

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来源期刊

Bangladesh Journal of Plant Taxonomy 生物-植物科学

CiteScore

0.42

自引率

44.40%

发文量

审稿时长

6 months

期刊介绍： Bangladesh is a humid, subtropical country favouring luxuriant growth of microorganisms, fungi and plants from algae to angiosperms with rich diversity. She has the largest mangrove forest of the world in addition to diverse hilly and wetland habitats. More than a century back, foreign explorers endeavoured several floral expeditions, but little was done for non-vasculars and pteridophytes. In recent times, Bangladesh National Herbarium has been carrying out taxonomic research in Bangladesh along with few other national institutes (e.g. Department of Botany of public universities and Bangladesh Forest Research Institute).