Floral Distribution of a Sub-Bituminous Coal Dumpsite in Enugu, Nigeria

Abstract

The remnant floral diversity of a naturally reclaimed area proximal to an abandoned mine was assessed. The coal mine site, the Incident zone (IZ) and an unsullied site, the Control zone (CZ), were sampled. Using a 5 m2 quadrat, the floristic composition was determined by the occurrence, distribution analysis, and species diversity indices. The study revealed a degraded vegetation type and recorded a total of 60 species, 53 genera and 27 families. Both the IZ and CZ shared 26.67% species similarity, while 36.67% are were unique to each zone. Five species were dominant (Ageratum conyzoides, Panicum maximum, Calopogonium mucunoides, Chromolaena odorata). While the dominant genera vary between IZ (Borreria, Dioscorea, Ipomoea, and Phyllanthus) and CZ (Desmodium, Euphorbia, and Ipomoea), Asteraceae and Poaceae were the dominant families in both zones. Forbs were the most dominant life forms in both zones; Cyclosorus sp. and Adiantum sp. were only found on the IZ, whereas, Kyllinga erecta and Mariscus alternifolius were exclusive to the CZ. Our results reflect that species composition and vegetation paradigm in the study area could be influenced by coal mining, farming, infrastructural installations and climate. Hence, we suggest future studies to investigate how the species adapt to the environment. Although most of the species encountered belonged to lower-risk conservation, the conservation of the species to this area is imperative.

Floral composition and diversity of the lagos coastal environment, South‐Western, Nigeria

“…The species diversity analyses were conducted using PAlaeontological STatistics software (PAST v 2.17c, Hammer et al, 2001). To determine the morphological structure/canopy cover—which govern the function of the forest ecosystems, such as ecosystem resilience, and succession stage, (Yao et al, 2022) of the LCE, we adopted a typical life forms classification of a tropical forest (Agbagwa & Chimezie, 2011; Mueller‐Dombois, 1972; Nsa et al, 2021). Then, the species were grouped based on their stem habit according to Ebigwai and Akomaye (2014)—(i) woody‐stem (trees and shrubs) and (ii) weak‐stem (climber/creeper, herbs, grass, and fern).…”

Ecological Restoration of Degraded Habitats of Jajang Iron and Manganese Ore Mines, Keonjhar, Odisha, India

“…The ability of herbaceous species, particularly grass species to withstand drought, poor soil nutrients and climatic conditions [37] may play a role in their colonization on mine spoils. Many researchers have emphasized the significance of grasses as the first colonizers during the restoration of mine land [38][39][40]; [29]. Grassroots with their fibrous root systems, are said to help limit erosion, stabilize soil and conserve moisture [37].…”