University of Khartoum

Effects of Acacia senegal (L., Willd.) on Sandy Soils: A Case Study of El Damokeya Forest, Northern Kordofan State

Effects of Acacia senegal (L., Willd.) on Sandy Soils: A Case Study of El Damokeya Forest, Northern Kordofan State

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Title: Effects of Acacia senegal (L., Willd.) on Sandy Soils: A Case Study of El Damokeya Forest, Northern Kordofan State
Author: Ahmed, D. M.; Nimer, A. M.
Abstract: Soil properties were studied in El Damokeya forest, located at 30 km east of Elobeid town, Northern Kordofan State, during the rainy season of 1998. The aim was to characterize the soils of the area and to examine the effects of Acacia senegal plantations on the soil physical and chemical properties. The results showed that the soils were sandy, weakly structured, yellowish- red, neutral and poor in nutrient content, and that Acacia senegal plantations had induced considerable changes in the soil morphological, physical and chemical properties. The soil became more differentiated, with a third layer clearly discernible. No change had occurred in the soil texture. But, it became well structured with stable aggregates. Its organic matter content had been augmented to about one and half times, deeply incorporated and stained the whole profile with darker hues. The soil reaction became slightly acidic (pH 6.3). The exchange capacity was improved qualitatively and quantitatively. Thus, cation exchange capacity values increased from 2.8 in the bare land to 4.0 meq/100g soil under the forest, and the soil was saturated to 98% with base cations. The major nutrient elements (N, P, K, Ca, Mg, Fe) had generally increased with various proportions ranging from 10% to more than 130%, but only Ca showed significant difference at P = 0.05. Among the trace elements, Cu and Co had significantly decreased in the forest soil, but Zn and Mn had increased to about 100%.
Description: Page(s): 10 (1),106-118, 18 Ref.
URI: http://hdl.handle.net/123456789/2043
Date: 2002


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