Vegetation structure and soil characteristics of five common geophytes in desert of Egypt

El‐Amier, Yasser A.

doi:10.1016/j.ejbas.2016.03.001

Cited by 14 publications

(11 citation statements)

References 30 publications

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“…This result agrees with most of related studies Barakat et al, 2014;El-Amier, 2016). Saharo-Arabian and Mediterranean chorotypes represented 22.6% of the recorded flora.…”

Section: Discussionsupporting

confidence: 82%

Plant communities along the international coastal highway of Nile delta, Egypt

El‐Amier

El-Gawad

2017

jsa

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The construction of highways promotes several changes in the roadside habitat, vegetation, and plant invasion. The present study aimed to describe the plant communities-environment interactions of the international coastal highway from Port-Said to Abu-Qir, northern Nile delta coast of Egypt. A total of 146 species (83 annuals, 4 biennials, and 59 perennials), belonging to 116 genera and 33 families were recorded in 80 stands. The Mediterranean chorotype is the most represented. The cluster analysis of stands yielded four communities. The community I was dominated by Silybum mariannum, community II was dominated by Mesembryanthemum crystalinum, Community III is the largest one and was co-dominated by Hordeum murinum and Senecio glaucus and community IV was codominated by Cakile maritima and S. glaucus. Diversity indices showed more richness of communities II and more evenness of community IV. Electric conductivity, porosity, soil texture, Na + , Cl -and bicarbonate showed significant variation among communities. The soil of C. maritima and S. glaucus community was more saline (1.78 ms cm -1 ). The application of CCA showed that communities II and III were mainly correlated with salinity and organic matter. The present study revealed that roadside habitat of the international coastal highway dominated by different plant communities which correlated with the habitat structure, salinity, and anthropogenic activities. Furthermore, nine invasive species were recorded in this study which could be attributed to the increment of human activities after the construction of the highway.

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“…This result agrees with most of related studies Barakat et al, 2014;El-Amier, 2016). Saharo-Arabian and Mediterranean chorotypes represented 22.6% of the recorded flora.…”

Section: Discussionsupporting

confidence: 82%

Plant communities along the international coastal highway of Nile delta, Egypt

El‐Amier

El-Gawad

2017

jsa

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“…Also, Abd reported that, about 31.15%, 28% and 18% of therophytes, hemicryptophytes and chamaephytes are represented in the vegetation of Qift-Qusier roadside, respectively, The prevalence of the Mediterranean chorotype of the listed flora in the study area reflects the Mediterranean climate of studied area. This result agrees with most of related studies (Salama et al, 2013;Barakat et al, 2014;El-Amier, 2016;El-Amier and Abd El-Gawad, 2017). Saharo-Sindian and Mediterranean chorotypes accounted for 30.96% of recorded plants.…”

Section: Discussionsupporting

confidence: 93%

Vegetation Composition Related to Environmental Factors Along the International Highway-West Alexandria, Egypt

Al-hadithy

Youssef

Hassanein

et al. 2018

Journal of Environmental Sciences. Mansoura University

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Roadside vegetation is exposed to a variety of biotic and abiotic stresses that can affect the abundance and distribution of natural vegetation. The present study aimed to characterize the ecological features of the vegetation along the international coastal road from El-Ajami to Ras El-Hekma, West Alexandria, Egypt. The total number of the recorded plant species surveyed in the present study was 84 species (44 annuals, two bieannial and 38 perennials) belonging to 74 genera and related to 25 families. Asteraceae, Poaceae, Fabaceae and Chenopodiaceae were the largest families (53.57% of the total species, collectively). Therophytes is the most abundant life forms. The Mediterranean chorotype (58.32%) was the most represented. On the basis of the presence values, the classification of the 84 plant species recorded in 60 stands by cluster analysis yielded four vegetation groups. Group A (47 species) was dominated by Carthamus tenuis, group B (39 species) was dominated by Lactuca serriola, group C (52 species) was dominated by Bromus diandrus and group D (71 species) was dominated by Suaeda pruinosa. Calcium carbonate, organic carbon, electrical conductivity, bicarbonate, Cl-, Na + and Ca ++ showed clear significant differences between groups. The application of Canonical Correspondence Analysis (CCA) showed that, the percentages of porosity, CaCO 3 , Cl-, SO 4-, HCO 3 and cations (Na + , K + , Ca ++ and Mg ++) are the most effective soil variables. The current study revealed that the coastal sector in Egypt suffers from unplanned development, salt water intrusion and salinization of the soil, so the development of the highway needs a balance between conservation and development.

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“…These results are in accordance with the results of Abd El-Galil [ 75 ], who studied the floristic composition of Wadi Al-Assiuty, Eastern Desert, Egypt. In arid and semi-arid regions, chamaephyte and therophyte were found to be the most common life-forms [ 76 , 77 , 78 ].…”

Section: Discussionmentioning

confidence: 99%

Impacts of Anthropogenic Disturbance on Vegetation Dynamics: A Case Study of Wadi Hagul, Eastern Desert, Egypt

Bedair

Ibrahim

Alyamani

et al. 2021

Plants

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Irresponsible human interventions, encroachment of natural habitats, and climate change negatively affect wildlife. In this study, the effects of human influence on Wadi Hagul, an unprotected area in the north of the Egyptian Eastern Desert that has recently been subjected to blatant encroachments of vegetation, were studied. The most important of these threats is the construction of the new road Al-Galala–Wadi Hagul–Zafarana. In Wadi Hagul, 80 species are reported in this study; the most represented plant families are Asteraceae (15 species) and Brassicaceae (6 species). Perennial, chamaephyte and Saharo-Arabian species were recorded in the highest percentage. Detrended canonical correspondence analysis showed that latitude, longitude, altitude, silt, sand contents, pH, and CO32− content are the factors that have the highest effect on vegetation distribution in the studied stands. Several invasive and alien species such as Euphorbia prostrata have been listed; these species typically have a negative effect on native species. The Soil Adjusted Vegetation Index (SAVI) indicated a decrease in plant cover during the study period, as compared to previous years. In 2013 and 2020, SAVI ranged from −0.02 to 0.42 and from −0.18 to 0.28, respectively. Recently, the violation and destruction of wildlife have increased, therefore, preserving it along with general biodiversity has become an urgent necessity.

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Vegetation structure and soil characteristics of five common geophytes in desert of Egypt

Cited by 14 publications

References 30 publications

Plant communities along the international coastal highway of Nile delta, Egypt

Plant communities along the international coastal highway of Nile delta, Egypt

Vegetation Composition Related to Environmental Factors Along the International Highway-West Alexandria, Egypt

Impacts of Anthropogenic Disturbance on Vegetation Dynamics: A Case Study of Wadi Hagul, Eastern Desert, Egypt

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