Field hydraulic properties of an Alfisol under various fallow systems in southwestern Nigeria

Salako, F.K. and Kirchhof, G. (2003) Field hydraulic properties of an Alfisol under various fallow systems in southwestern Nigeria. Soil Use And Management, 19 4: 340-346. doi:10.1111/j.1475-2743.2003.tb00324.x

Author Salako, F.K.
Kirchhof, G.
Title Field hydraulic properties of an Alfisol under various fallow systems in southwestern Nigeria
Journal name Soil Use And Management   Check publisher's open access policy
ISSN 0266-0032
Publication date 2003-12
Sub-type Article (original research)
DOI 10.1111/j.1475-2743.2003.tb00324.x
Volume 19
Issue 4
Start page 340
End page 346
Total pages 7
Editor D.B. Davies
Place of publication Oxford, England
Publisher Blackwell
Collection year 2003
Language eng
Subject C1
300101 Soil Physics
770805 Integrated (ecosystem) assessment and management
Abstract The effects of various fallow management systems and cropping intensities on water infiltration were measured on an Alfisol at Ibadan in southwestern Nigeria. The objective was to determine the influence of the land use systems (a combination of crop-fallow sequences and intercropping types) on soil hydraulic properties obtained by disc permeameter and double-ring infiltration measurements. The experiment was established in 1989 as a split-plot design with four replications. The main plots were natural fallow, planted Pueraria phaseoloides and planted Leucaena leucocephala. The subplots were 1 year of maize/cassava intercrop followed by 3-year fallow (25% cropping intensity), or 2-year fallow (33% cropping intensity), or 1-year fallow (50% cropping intensity), or no fallow period (100% cropping intensity). Water infiltration rates and sorptivities were measured under saturated and unsaturated flow. Irrespective of land use, infiltration rates at the soil surface (121-324 cm h(-1)) were greater than those measured at 30 cm depth (55-144 cm h(-1)). This indicated that fewer large pores were present below 30 cm depth compared with 0-30 cm, depth. Despite some temporal variation, sorptivities with the highest mean value of 93.5 cm h(-1/2) increased as the cropping intensity decreased, suggesting a more continuous macropore system under less intensive land use systems. This was most likely due to continuous biopores created by perennial vegetation under long fallow systems. Intercropped maize and cassava yields also increased as cropping intensity decreased. The weak relationship between crop yields and hydraulic conductivity/infiltration rates suggests that the rates were not limiting.
Keyword Agriculture, Soil Science
Saturated Flow
Unsaturated Flow
Disc Permeameter
Double-ring Infiltrometer
Savanna Zone
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2004 Higher Education Research Data Collection
School of Agriculture and Food Sciences
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 7 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 15 Aug 2007, 01:51:06 EST