Наша группа организует более 3000 глобальных конференций Ежегодные мероприятия в США, Европе и США. Азия при поддержке еще 1000 научных обществ и публикует более 700 Открытого доступа Журналы, в которых представлены более 50 000 выдающихся деятелей, авторитетных учёных, входящих в редколлегии.
Журналы открытого доступа набирают больше читателей и цитируемости
700 журналов и 15 000 000 читателей Каждый журнал получает более 25 000 читателей
Andualem Ayalew*, Derbie wudu, Gezahagn Getachew, Tegabu Redea and Hoaddis kasshun
The study was conducted in north wollo, south wollo and orimiya zone,in Eastern Amhara with an aim to assess
the resource potential of Acacia seyal in the selected sites. The data from the selected sites were collected using
point center quarter method. A total of 90 quadrates from nine study areas with plot size 50 m × 50 m, (22.5 ha)
were systematically located along each transect, 100 m apart, and was spatially captured with the aid of GPS. At
every sampling point, four quadrants (90°) were created, using the transect line and a line perpendicular to it.
Species composition Acacia seyal structure,and its regeneration status, at points along transects were taken to
analyze diversity and target species structure of the sites.The highest and least density of Acacia seyal ha-1 were
attained by Mehale mecharie (148) and Alene sefer (52).The highest shannon weiner diversity and species richness
was observed in Alene sefer (Kemessie).Acacia seyal structure in all study sites showed an inverted J shape except
Lastie gerdao(Gubalafeto).Therefore, Acacia seyal deserves immediate conservation and appropriate management
measures in order to get sustainable product and services from the species. Based on the results, awareness
creation on the values and management, study on the management options for firewood, fuel wood, charcoal
production and also investigation of gum production techniques of Acacia seyal for the sustainable use of the
resource are recommended.