Range Condition in of the Relation to Range Management and Utilization in Dallanj Locality South Kordofan

Abstract

The Study was conducted in Southern Kordofan(Dilling Locality).Vegetation cover, plant composition, plant density and biomass productivity; data were collected .Three sites were identified in the first viii season of 2007 which include the Flat site, the Depressed and the Graduoud sites. To investigate variations along large scale another two sites Clay soil and Qoz soil were identified in the second season of 2008. The Study concluded that the garduoud site at first season scored the highest value covering (57%) followed by (39%) and (31%) in depressed and flat sites respectively The variation in vegetation cover percentage may be due to variation in topography, soil properties and human activities overgrazing ,deforestation , etc ). At second season 2008, the clay site scored the higher plant cover value (50%) compared with Qoz site (45%) which may be attributed to high moisture content in the clay site. Also the plant composition was moderate ranging from 45% - 50% at Qoz and clay site respectively. This variation may be attributed to site characteristics like minerals, moisture, shade and rainfall amount and distribution. It illustrates that in season 2007 the plant density in garduoud site was 94.1% and 92.2%, 88% in flat and depressed respectively, as table (4). While in .season 2008 were 96 in clay site and 90.5 in Qoz site The average biomass production of the different sites at seasons 2007 and 2008 varies between 183.4 gm/m2 in flat site 31.4 gm/m2 in depression site and at 2007 the. In 2008 clay site scored highest biomass value 813.3 gm/m2 while the Qoz site scored 431.8 gm/m2. The spatial variation in biomass production between sites at both seasons 2007 and 2008 may be as the result of the spatially variation and fluctuated rainfall characterizing this area or communities. Schoefeldia gracilis species scored the highest relative density value in the different sites at rainy season 2007. While Zornia glochdiata showed the highest relative density value in Qoz site at 2008.This may be indicate that Schoefeldia gracilis grow better in the clay soils, while Zornia glochdiata grow well in Qoz soil. At season 2007 Acacia seyal (Taleh) Acacia nubica (Loat) Acacia senegal (Hashab) Acacia mellifera (Kitir) were the dominatnt tree species. Also, the woody cover at season 2008 was dominated by Acacia seyal (Taleh) Acacia mellifera ix ‫‪(Gubbiesh) and Ziziphus spina-christi (Sidir) were the dominate species in‬‬ ‫‪Qoz The main sources of water are abar for resident groups and dwanky‬‬ ‫‪for nomads groups. The main reasons of conflicts were shortage of water‬‬ ‫‪for entrance of animal's breeder inside the farms. These conflicts between‬‬ ‫‪.residents and nomads families are usually solved by taswai and garama‬‬ ‫‪The study recommends that many range studies spatially extension‬‬ ‫‪.among community related to the area study are needed‬‬