Effects Of Soil Properties On Erodibility And Infiltration: A Case Study Of Unaab Hostel

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ABSTRACT

Erodibility of UNAAB soil series for nine plots behind the female hostel ( i.e. plot A – I) using regression equation were determined by evaluating first organic matter content, using the Walky Blanks method, the particle size analysis, permeability test, bulk density and chemical properties of the soil such as Sodium, Cation Exchange Capacity, acidity, Potassium, Magnessium and calcium.

The organic matter content of the soil(Ibadan series-sandy loam) was found to be;plot1 depthA&B( 2.017%, 2.133%),plot2 depthA&B(2.084%, 2.133%),plot3 depthA&B( 1.278%, 1.307%),plot4 depthA&B( 1.200%, 1.221%),plot5 depthA&B( 2.622%,2.734%),plot6depthA&B(1.523%,1.549%),plot7depthA&B(1.479%,1.514%),plo t8 depthA&B(3.967%,4.058%),plot 9depthA&B(1.143%,1.169%) and the average particle size was fou.3nd to be; plot1(87.05% sand, 1.79% clay,11.5% silt),plot2(86.8%sand,1.85%silt,11.5%clay),plot3(84.7%sand,2.8%silt,12.5%clay),plot4( 86.0%sand,3.8%silt,10.5%clay),plot5(86.0%sand,3.3%silt,11.5%clay),plot6(87.3%sand, 2.5%silt,9.8%clay),plot7(87.3%sand,1.0%silt,11.4%clay),plot8(83.8%sand,4.7%silt,11.4 %clay),plot9(86.3%sand,3.3%silt,11.5%clay).This confirms the earlier report that the soil can be classified as Ibadan series.

The erodibility values (factor) for the plot were determined as follows: plot 1,depth A&B(0.00000922,0.003587), plot2 depthA&B(0.00346,0.00383),plot3 depth A&B(0.0212, 0.00354),plot4 (0.003966, 0.00397),plot5 deptA&B(0.003304,0.003255),plot6 deptA&B( 0.004088, 0.004088),plot7 depthA&B( 0.003673, 0.000354),plot8 depthA&B( 0.002805, 0.00335),plot 9 depthA&B( 0.003957, 0.003756). The values of erodibilities as presented is low and this indicate that the soil will be susceptible to erosion.Both terrace and strip cropping conservation measure is therefore recommended to curb erosion menace as witnessed in the area.

TABLE OF CONTENT
Title page
Certification
Dedication
Acknowledgement
Table of content
Abstract
List of figures
List of tables

CHAPTER ONE
1.0     Introduction
1.0.1  Weathering
1.1     General Objectives
1.2     Specific Objective
1.3     Problem Statement
1.4     Justification

CHAPTER TWO
2.0    Literature Review
2.0.1 Soil Erosion
2.0.2 Infiltration
2.0.3 The Infiltration Process
2.0.4 Erodibility
2.0.5 Soil Properties Affecting Infiltration
2.0.6 Porosity and Infiltration
2.0.7 Soil Texture
2.0.8 Soil Structure
2.1    Erosion by Water
2.2    Erosion by Wind
2.3    Rainfall Erosivity
2.4    Factors Affecting Soil Erodibility
2.5    Organic Matter Content
2.6    Soil Aggregates Content
2.7    Soil Structure
2.8    Erodibility Test
2.9    Direct Field Plot Technique
2.10  Indirect Measurements
2.11  Empirical Indices

CHAPTER THREE
3.0       Materials and Method
3.1       Materials
3.2       Methods
3.2.1    Field Works
3.2.2    Laboratory
3.2.3    Determination of Soil Properties Affecting Erodibility and Infiltration35
3.2.3.1 Soil Texture
3.2.4    Calculations of Water Content Using Hydrometer Method
3.2.5    Determination of Soil Moisture Content
3.2.6    Gravimetric Soil Water
3.2.6.1  Field Sampling
3.2.6.2  Drying of Samples
3.2.7     Hand Feel Method
3.2.8     Bulk Density and Water Content Calculation
3.2.8.1   Organic Matter Content Determination
3.2.8.2    Particle Size Analysis
3.2.8.3   Soil Structure Code
3.2.8.4   Permeability Class Test
3.2.8.5   Aggregate Stability
3.3         Bulk Density Determination
3.3.1      Estimation of Erodibility Using Erodibility Nomograph
3.4         Chemical Properties Determination
3.4.1     Soil pH
3.5        Exchangeable Acidity in Soil

CHAPTER FOUR
4.0      Results and Discussion
4.1      Results
4.1.1   Organic Matter Content
4.2      Particle Size Distribution
4.3      Evaluated Erodibility Values as Compared to Estimated Values from the Erodibility Nomograph
 
CHAPTER FIVE
5.0    Conclusion and Recommendation
5.1    Conclusion
5.2    Recommendation
         References

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(2013, 11). Effects Of Soil Properties On Erodibility And Infiltration: A Case Study Of Unaab Hostel.. Afribary.com. Retrieved 11, 2013, from https://afribary.com/read/1893/effects-of-soil-properties-on-erodibility-and-infiltration-a-case-study-of-unaab-hostel
"Effects Of Soil Properties On Erodibility And Infiltration: A Case Study Of Unaab Hostel." Afribary.com. 11 2013. 2013. 11 2013 <https://afribary.com/read/1893/effects-of-soil-properties-on-erodibility-and-infiltration-a-case-study-of-unaab-hostel>.
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"Effects Of Soil Properties On Erodibility And Infiltration: A Case Study Of Unaab Hostel.." Afribary.com. 11, 2013. Accessed 11, 2013. https://afribary.com/read/1893/effects-of-soil-properties-on-erodibility-and-infiltration-a-case-study-of-unaab-hostel.

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