Yacoub Mohamed El-Barasi

• BSc MSc PhD
• Professor at University of Benghazi

This study was conducted in the Wadi Al-Sahl Al-Gharbi area of the Butnan Plateau, northeast of Libya During the period between 2020-2023, the importance and goal of this study was to evaluate the environmental conditions and the possibility of establishing a nature reserve in this region with important environmental and human potential, and the mo...

أُجريت هذه الدراسة في حوض وادي السهل الغربي شمال شرق ليبيا، على مساحة 54.75 كم²، لتقييم خصائص الغطاء النباتي والتنوع الحيوي النباتي. تم تقسيم المنطقة إلى ستة مواقع رئيسية، حيث تم دراسة 12 مربعاً بمساحة 25م² لكل مربع، وتم وضع علامات وأخذ إحداثيات المواقع للرجوع إليها وإعادة دراستها خلال فصل الخريف والربيع.. أظهرت النتائج تدهور الغطاء النباتي وسيادة...

تكشف القائمة المرجعية لمنطقة الدراسة، التي تم إعدادها بدقة من خلال مزج الدراسات السابقة من المراجع، والزيارات الميدانية والملاحظات المباشرة للمؤلفين، وملاحظات المجتمعات المحلية، عن 36 نوعًا تمثل 29 عائلة. وتتناول القائمة المرجعية توزيعهم الجغرافي، وتسجل تواجدها في منطقة الدراسة. تتيح لنا هذه الصورة الشاملة فهم العلاقة الدقيقة بين كل نوع البيئات الت...

استهدفت الدراسة المنطقة الممتدة من جنوب المرج الى وادي الخروبة حيث تمثلت الحياة النباتية في منطقة الدراسة ب 217 نوعاً تنتمي الى 152 جنساً وتضم 48 عائله وكانت عاريات البذور عائله واحده ونوع واحد، بينما تمثل كاسيات البذور ب 47 عائله مقسمه الى نباتات ثنائية الفلقة والتي تضم 40 فصيله، و 125 جنس، و 181 نوعاً. ونباتات احادية الفلقة والتي تضم 7 عائلات و 2...

Due to the lack of studies in the field of biodiversity in Libya, especially in animal ecology, this paper aims to assess the diversity and distribution of wildlife animals in three areas of the EL-Jabal EL-Akhdar region of northern-eastern Libya (Jeera, Taknes, Wadi Zaza) and the anthropogenic pressure in these areas, the areas were divided into t...

Juniperus turbinata Guss. plays a vital role in the ecosystems of El-Jabal El-Akhdar Mountain, comprising an essential component of its climax community. However, it is susceptible to significant deterioration due to various factors, including tree dieback. The current work aims to understand this phenomenon and examine its interaction with drought...

The annotated checklist, meticulously crafted through a blend of extensive literature review, the author's keen observations, and the wisdom of local communities, unveils the 36 species representing 29 families. The checklist delves into their geographical distribution , mapping their footprints across the zone. This comprehensive picture allows us...

This study aimed to identify the chemical and physical properties of the soils of the southern Jabal Al-Akhdar region, and this area was chosen due to the severe deterioration of its soil resulting from water scarcity, dry climate and overgrazing. This study also aims at the current situation of the soils in the south of Jabal Al-Akhdar as well as...

The goals of the present work were to document the weed species in Triticum aiestivum L. (Wheat) fields in MR agricultural project Masiklo and to provide quantitative data that could be used to estimate losses due to weeds, also to attract the attention to the economically important weeds in MR agricultural project Masiklo and to develop methods fo...

Keywords: Arid rangelands, temporal changes, spatial changes, soil seed bank, seed bank density, seed bank vitality. ‫ا‬ ‫لملخص‬ ‫هذه‬ ‫تناولت‬ ‫ايل‬ ‫حو‬ ‫اسة‬ ‫الدر‬ ‫منطقة‬ ‫مساحة‬ ‫تبلغ‬ ‫ليبيا.‬ ‫شرق‬ ‫مشال‬ ‫اقعة‬ ‫الو‬ ‫األخضر‬ ‫اجلبل‬ ‫جنوب‬ ‫اعي‬ ‫مر‬ ‫مبناطق‬ ‫البذور‬ ‫ان‬ ‫خز‬ ‫اسة‬ ‫الدر‬ 15600 ‫كم‬ 2 ‫مستوى‬ ‫فوق‬ ‫املنطقة‬ ‫تفاع‬ ‫ار‬...

Keywords: Arid rangelands, temporal changes, spatial changes, soil seed bank, seed bank density, seed bank vitality. ‫ا‬ ‫لملخص‬ ‫هذه‬ ‫تناولت‬ ‫ايل‬ ‫حو‬ ‫اسة‬ ‫الدر‬ ‫منطقة‬ ‫مساحة‬ ‫تبلغ‬ ‫ليبيا.‬ ‫شرق‬ ‫مشال‬ ‫اقعة‬ ‫الو‬ ‫األخضر‬ ‫اجلبل‬ ‫جنوب‬ ‫اعي‬ ‫مر‬ ‫مبناطق‬ ‫البذور‬ ‫ان‬ ‫خز‬ ‫اسة‬ ‫الدر‬ 15600 ‫كم‬ 2 ‫مستوى‬ ‫فوق‬ ‫املنطقة‬ ‫تفاع‬ ‫ار‬...

This study was conducted in El-Abyar area in El-Jabal El-Akhdar region, northeast Libya. The aim was to study the environmental settings and the potential and possibility of establishing a protected area in this important region from a historical, biological, social, and economic point of view. The methodology included an intensive literature revie...

El-Jabal El-Akhdar region is the most vegetated area in Libya dominated by a Mediterranean evergreen maquis ; the juniper trees (Juniperus phoenicea L.) consist of about 70-80% of the vegetation cover. These trees suffer a wide die-off phenomenon for a few decades, which put extra pressure on the ecosystems, in addition to climate change and unsust...

The present work was carried out in the coastal sand dunes along the beach of Karkurah area, about 100 km south west of Benghazi, during (January to August 2008), in order to study the relationships between vegetation and environmental factors. Vegetation and soil were sampled in 40 quadrats representing the physiographic variation and different ha...

The Marmarica Plateau, which is situated on both sides of the Libyan-Egyptian border, has significant historical and ecological importance. Nevertheless, its botanical components have not been updated or reviewed recently. This paper aims to study the floristic composition of the plateau on the Libyan side by a comprehensive review of the five most...

Seed bank

Highlights  Identify weed species naturally occurring in agricultural Wheat fields.  Showed dominant species in studied fields. The goals of the present work were to document the weed species in Triticum aiestivum L. (Wheat) fields in MR agricultural project Masiklo and to provide quantitative data that could be used to estimate losses due to wee...

Although the documentation of data about the Libyan vegetation began since ancient time and modern studies started at the beginning of the eighteenth century, the Libyan flora is not fully understood, particularly in the interior lands, the southern mountains, desert valleys and depressions, and, of course, the northern valleys. The number of recor...

Although the documentation of data about the Libyan vegetation began since ancient time and modern studies started at the beginning of the eighteenth century, the Libyan flora is not fully understood, particularly in the interior lands, the southern mountains, desert valleys and depressions, and, of course, the northern valleys. The number of recor...

The present study was to evaluate the concentrations of heavy metals (Cd, Cr and Cu) in soils, waste water and different plant organs; define which species and which plant organs exhibit the greatest accumulation and evaluate whether these species could be usefully employed in phytoremediation programs. Al- Marj plain is located in north eastern pa...

The current study was conducted in Daphna area, an arid region in Cyrenaica located at the northeastern part of Libyan Sea Coast at the Libyan-Egyptian Border. The soil was sampled in 40 different sampling sites along five different sectors through scraping the soil from 0-10 cm layer (25x25 cm) in the Platea and from 0-10 cm and 10-30 cm layers in...

Very few soil seedbank studies have been conducted in South Africa, especially in arid rangelands. Insight into the soil seedbank could therefore improve assessment of rangeland dynamics and enhance rehabilitation efforts. This study aimed to characterise the soil seedbanks in various vegetation types of the Tankwa Karoo National Park, an arid envi...

The study was conducted in the coastal strip of Solouq Plain, one of the most important rangeland areas in the north-eastern part of Libya (Cyrenaica). The area has a long history of overutilisation, which has been perceived to alter rangeland condition. The study aimed to evaluate the current state of the rangeland ecosystem by investigating the c...

Study of the factors that influence the soil properties in the Daphna region, northeastern part of Cyrenaica, Libya.

This investigation was carried out on EL-Jufra (Oasis) depression located at the heart of Libyan desert (Sahara desert), at coordinates 29-29:30 N and 15:30-16:30 E. This saharean zone is characterized by low rainfall (2.5-45 mm / year) and high temperature range (0-50 C O) with great quantity of shallow underground water, feeding Oases such as Wad...

This investigation was carried out on EL-Harouge mountain located within the Libyan desert. A very important area from the Naturalistic point of view that should be preserved. The natural vegetation in this region is very poor, scattered and concentrated mainly in Vallies, but consisted of special species which have adapted significantly to survive...

Around 151 farms were studied at EL-Gubba and Alabraq area, one of the important agricultural zones of EL- Jabal EL-Akhdar (the green mountain) located north of Libya at an altitude ranging between 600 - 800 meters above sea level. The area is characterized by a semi-humid climate with an annual average temperature of 18 degrees Celsius and average...

Wadi Derna one of the most important wadis (Valleys) in El-Jabal El-Akhadar. The Wadi is located within a Mediterranean climate. The analysis of soil samples showed that the soil is mainly composed of clay soil-sandy to clayey alluvial with low-salinity. The vegetation of the area is mainly confined between the two major dams in the study area, whe...

Wadi Derna one of the most important wadis (Valleys) in El-Jabal El-Akhadar. The Wadi is located within a Mediterranean climate. The analysis of soil samples showed that the soil is mainly composed of clay soil-sandy to clayey alluvial with low-salinity. The vegetation of the area is mainly confined between the two major dams in the study area, whe...

Al-Marj Plain is one of the most important regions in Al-Jabal al-Akhdar. Al-Marjis located on the southern coast of the Mediterranean Sea in the region of Cyrenaica. The study area is penetrated by some agro-and populated areas. The family of Phocaea it is of great economic importance because of the cereals, fodder, sugar, paper, edible and essent...

Al-Marj Plain is one of the most important regions in Al-JabalAl-Akhdar. Al-Marjis located on the southern coast of the Mediterranean Sea in the region of Cyrenaica. The study area is penetrated by some agro - and populated areas. Family of Phocaea it is of great economic importance because of the cereals, fodder, sugar, paper, edible and essential...

The present study aims at describing and analyzing the floristic composition and vegetation types, as well as evaluating the impact of waste water pollution on the plant diversity and community structure in Al-Marj plain, North Libya. Forty-two stands, distributed among polluted and non-polluted sites, were selected seasonally for this study. A tot...

The present study assesses the impact of waste water discharge on the plant communities and size structure of the common woody species in Wadi El-Shees, Al-Jabal Al-Akhdar, Libya. Thirty stands were selected along two adjacent tributaries (polluted and un-polluted) in Wadi El-Shees. Sixty-five species belonging to 60 genera and 34 families were rec...

The study area is a semi-desert range zone with a vegetation cover constituted mainly of annuals, shrubs and sub- shrubs, adapted to survive in such harsh environment. The area is characterized by a semi- desert climate which is dry over the most of the year with sporadic and irregular rainfall from year to year and from one month to other. In the...

The study area is a semi-desert range zone with a vegetation cover constituted mainly desert range zone with a vegetation cover constituted mainly of annuals, shrubs and sub-shrubs, adapted to survive in such harsh environment. The area is characterized by a semi-desert climate which is dry over most of the year with sporadic and irregular rainfall...

A total of 11 samples of the aerial part of Origanum cyrenaicum were analysed fresh and dry for their essential oil contents and for the effect of seasonal variation on the concentration of these oils. Compounds characterized by gas chromatography and mass spectrometry were divided into 4 groups according to their molecular structure. The first gro...

Journal of Environmental Science and Engineering A 2 (2013) 41-58 Formerly part of Journal of Environmental Science and Engineering, ISSN 1934-8932 Threats to Plant Diversity in the North Eastern Part of Libya (El-Jabal El-Akahdar and Marmarica Plateau) Yacoub Mohamad Mohamad El-Barasi1 and Manam Wafi Barrani Saaed2 1. Botany Department, Faculty of...

Journal of Environmental Science and Engineering B 2 (2013) 357-373 Formerly part of Journal of Environmental Science and Engineering, ISSN 1934-8932 Land Deterioration of a Semi-desert Grazing Area in the North-Eastern Zone of Libya (Cyrenaica) Yacoub Mohamed EL-Barasi1, Manam Wafi Barrani2 and and Rebeh Otman Al Tajoury1 1. Botany Department, Fac...

Yacoub Mohamed El-Barasi & M. W. Barrani Factors affecting natural vegetation on EL-Harouge mountain, Central part of Libyan desert (Sahara) Abstract El-Barasi, Y.M. & Barrani, M.W.: Factors affecting natural vegetation on EL-Harouge mountain, Central part of Libyan desert (Sahara). — Bocconea 24: 199-211. 2012. — ISSN 1120-4060. This investigation...

FERTILIZERS AND PESTICIDES ON EL-GUBBA AND EL-ABRAQ AREA IN LIBYA EL-BARASI Y. M. 1, 2, AHMAIDA N. A. 2, BARRANI M. W. 3, EL-AMROUNI A. O., 4, 5 & Abdelnaser OMRAN 5 1Botany Department, Faculty of Science, Gar Younis University, Benghazi, LIBYA 2 Department of Environmental Engineering and Science, Academy of Postgraduates Study, Benghazi Branch, L...

Garyounis University Press Journal of Science and Its Applications Vol. 1, No. 2, pp 1-14, September 2007 Comparative Study of the Seed Bank of Arable Land and Natural Vegetation in El-Jabal El-Akhdar Plateau and Coastal Zone Y. M. El-Barasi, J. F. Mohammad Botany Department, Faculty of Science, Garyounis University, Benghazi, Libya ABSTRACT This i...

The Effect of Human Activities on the Soil Seed Bank of a Semidesert Zone in South El-Jabel El-Akhdar in Northern Cyrenaica (Libya) Y. M.El-Barasi, B. M. Buhwarish Botany Department, Faculty of Science, Garyounis University, Benghazi, Libya ABSTRACT The vegetation of the study area (1800 km2) characterized by a steppe dwarf formation (ass. Teucrium...

The flora of Wadi Zaza (Cyrenaica Libya) was studied and statistically analysed. Total figures of the flora are: 61 families, 213 genera and 336 species. Two families belong to Gymnosperm and the remaining 59 families to Angiosperms. Dicotyledons are represented by 278 species, 176 genera, and 52 families and Monocotyledons by 56 species, 35 genera...