Woody plant diversity, structure and regeneration in the Ambo State Forest, South Gondar Zone, Northwest Ethiopia

Melesse, Solomon; Ayele, Belayneh

doi:10.1007/s11676-016-0280-8

Cited by 28 publications

(20 citation statements)

References 18 publications

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“…The overall regeneration status of both land-uses showed the presence of the highest seedlings, followed by saplings and mature individuals, implying that most of the woody species in the study land-uses have worthy potential to sustain the population (Melese and Ayele, 2017;Mewded et al, 2019;Myo et al, 2016). The highest number of saplings and seedlings in HGAFs were Z. spina-christi, B. aegyptiaca, A. seyal and A. tortilis while in adjacent NF were P. oliveriana, B. aegyptiaca, A. seyal, and Z. spina-christi respectively.…”

Section: Stand Characteristics and Regeneration Statusmentioning

confidence: 84%

Woody species composition, structure, and diversity of homegarden agroforestry systems in southern Tigray, Northern Ethiopia

Eyasu

Tolera

Negash

2020

Heliyon

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Nowadays, the conservation of biodiversity is a major environmental challenge globally. Homegarden agroforestry systems (HGAFs) have a large potential for biodiversity conservation. However, little attention has been given to the relative importance of HGAFs in terms of biodiversity conservation. The present study, therefore, aimed to estimate and compare the woody species diversity and structure of HGAFs and adjacent natural forest (NF) in Northern Ethiopia. Three sites were purposively selected based on the presence of HGAFs and NF adjacent to each other. A stratified sampling system was used to select representative homegardens from different wealth categories. In NF, a systematic transect sampling technique was employed. A total of 90 sample plots (10 m Â 20 m) were used to collect vegetation data. A total of 32 species representing 26 genera and 20 families were identified from the studied HGAFs and NF. Thirty woody species belonging to 24 genera and 20 families were recorded in the HGAFs whereas, 11 species, belonging to 9 genera and 8 families were recorded in the NF. Native woody species accounted for 66% of all woody species recorded in both HGAFs and NF. Stem density, richness, and diversities of woody species were significantly higher in HGAFs than in NF (p 0.05). Trees and shrubs in the HGAFs had significantly lower stem diameters, height, and basal area than the adjacent NF (p 0.05). The results show that HGAFs complements the NF for biodiversity conservation and supports in counteracting the loss of woody species from the natural ecosystem. Hence, promoting HGAFs habitats in human-dominated landscapes should be part of the biodiversity conservation strategy.

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Section: Stand Characteristics and Regeneration Statusmentioning

confidence: 84%

Woody species composition, structure, and diversity of homegarden agroforestry systems in southern Tigray, Northern Ethiopia

Eyasu

Tolera

Negash

2020

Heliyon

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“…Accordingly, 2 woody species are found to be with less than 1, 57 species with 1–10, and 3 species with 10–20 IVI values. Those species that exhibit lower IVI values need high conservation efforts while those with higher IVI values need monitoring management [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

Woody species composition and community types of Hangadi Watershed, Guji Zone, Ethiopia

et al. 2021

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Background Hangadi watershed is endowed with the only virgin forest in Odo shakisso harbouring high biodiversity, but it has been suffered from anthropogenic activities. This study was conducted to investigate composition and community diversity of woody species in restoration for posterity. Satellite images of 1988, 2008, and 2018 were used to classify and analyse trends of deforestation. For both woody species and topsoil (0–30 cm), 20 m × 20 m, 100 plots laid at every 300 m along line transects, 1 km apart from each other. In each sample plot, woody species ≥ 3 m were counted, Shannon–wiener diversity index, cluster analysis and ordination were computed. Results Agroforestry is found to be the dominant land use/land cover class followed by forest and cultivated land. A total of 61 woody species belonging to 34 families; 8.2% of the species were endemic to Ethiopia. The highest number of species was recorded from families Euphorbiaceae and Rubiaceae (5 species, 8.2%), Rutaceae, Celastraceae, and Oleaceae (3 species, 5.08%) followed by Flacourtiaceae, Meliaceae, Araliaceaae, Myrsinaceae, Moraceae, Boraginaceae, Asteraceae, Spontaceae, Lauraceae and Sapindaceae (2 species each). Four woody plant communities were identified using free statistical software R version 3.1.1. The canonical correspondence analysis result showed that EC, pH, OM, altitude, C:N, CEC, sand, silt, AvP, and TN significantly affected species distribution in the watershed. Conclusion Local people involved in cutting mature woody species for timber production, making farm implements and, cultivated land expansion. Protection of woody species diversity of forest and coffee systems with low biodiversity value conservation concepts are recommended to be executed jointly by local people and stakeholders.

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“…In particular, LD represents the colonization stage of the invasion process and HD represents the landscape spread stage of the invasion process (Kolar & Lodge, ; Rai, ; Theoharides & Dukes, ). The relative abundance of E. canadensis was calculated as the ratio of the number of E. canadensis individuals to the total number of individuals of all plant species in the surveyed quadrats (Melese & Ayele, ; Wang, Jiang, Liu, et al, ; Wang, Jiang, Zhou et al, ). Fourteen replicate quadrats (2 m × 2 m) as well as the surrounding uninvaded area were surveyed for degree of E. canadensis invasion.…”

Section: Methodsmentioning

confidence: 99%

Erigeron canadensis affects the taxonomic and functional diversity of plant communities in two climate zones in the North of China

Zhang²,

Jiang

et al. 2019

Ecological Research

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Plant communities across multiple climate zones are at risk of invasive species. Understanding the effects of invasive alien species on both the taxonomic and functional diversities of plant communities in different climate zones enables insight into the mechanisms underlying successful invasions. This study investigated the effects of Erigeron canadensis at different degrees of invasion on both the plant taxonomic and functional diversities in the Chinese zones of Jinan (warm temperate climate) and Zhenjiang (north subtropical climate). A high degree of E. canadensis invasion resulted in a stronger decrease of plant diversity compared to a light degree of E. canadensis invasion. This may be because E. canadensis invasion can lead to a decrease in the number of native species via competition and subsequent local extinction. A high degree of E. canadensis invasion increased the Rao's quadratic entropy of plant height and ground cover. This may be because both the plant height and ground cover of E. canadensis and natives increased with increasing degree of E. canadensis invasion. The number of plant species in plant communities was lower in Jinan than in Zhenjiang. This is presumably because E. canadensis grows better in Jinan than in Zhenjiang and therefore, rare species are more likely to go extinct there. A small number of functional diversity indices of Jinan plant communities were higher than those of Zhenjiang. This may be due to the higher value of functional traits of E. canadensis in Jinan.

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Woody plant diversity, structure and regeneration in the Ambo State Forest, South Gondar Zone, Northwest Ethiopia

Cited by 28 publications

References 18 publications

Woody species composition, structure, and diversity of homegarden agroforestry systems in southern Tigray, Northern Ethiopia

Woody species composition, structure, and diversity of homegarden agroforestry systems in southern Tigray, Northern Ethiopia

Woody species composition and community types of Hangadi Watershed, Guji Zone, Ethiopia

Erigeron canadensis affects the taxonomic and functional diversity of plant communities in two climate zones in the North of China

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