Rainfall and infiltration

Govindaraju, Rao S.; Goyal, Abhishek

doi:10.1016/b978-0-12-822544-8.00007-x

Cited by 3 publications

(4 citation statements)

References 94 publications

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“…The cumulative infiltration and standard deviation show reasonable conformity of the individual infiltration rate between the soil units. This conformity of individual infiltration rate for all the soil units has been defined as the meters per unit time of water entering into the soil regardless of the types or values of forces or gradients [29]; thus, plays a fundamental role in the understanding of groundwater and subsurface flows of the fadama area of the study sites [19]. To this, the infiltration rates for all the soil units ranged between 2.4 cm/hr and 12 cm/hr, while the cumulative infiltrations ranged between 4.8 cm to 24 cm (Table 5).…”

Section: Resultsmentioning

confidence: 99%

“…This could mean that the high clay content and coarse textural particles overshadow sand particles, and this might have cause slow water movement as well [21,30,39]. Therefore, crops/plants grown in these fadama sites may require little irrigation during the daytime but could have disadvantages of high flooding or wet-flexibility impact due to the expected saturation impact at high rainfall intensity [19]. In soil units 10, 11, and 12, water moves differently from the above soils, although, fall under the same moderate infiltration capacity (Table 5).…”

Section: Evaluation Of Cumulative Infiltration Of Moderate Soilsmentioning

confidence: 99%

“…To ensure sustainable utilization of the water economy and soil resource of fadama lands in the study area, water movement in the soil must be monitored and studied [10]. This monitoring of water movement from the surface soil layer to several underground soil layers through infiltration is an effective means for a plant water management system [19]. This is essential for reliable prediction of water management and whether the infiltration capacity of individual soils is adequate to cope with particular environmental/climate conditions [20][21].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation and classification of soil infiltration capacity, hydrologic soil groups and suitability rating classes for irrigation application of fadama soils

USMAN,

Usman

2024

Preprint

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Information regarding the soil water relationship for irrigation under fadama management system is crucial. A field measurement study was undertaken to evaluate and classify the infiltration rates, infiltration capacity and hydrological soil group classes of fadama in the study area. Fifteen (15) different soil units were randomly selected based on the presence of agricultural activities and the nature of irrigation applications. The infiltration rates for all the soil units ranged between 2.4 cm/hr and 12 cm/hr, while the cumulative infiltrations ranged between 4.8 cm to 24 cm. Soil unit 8 recorded the highest infiltration rates of 12 cm/hr and cumulative infiltration of 24 cm, while soil unit 10 had the lowest infiltration of 2.4 cm/hr and cumulative infiltration of 4.8 cm. Soil infiltration capacity was classified as moderate and moderate-rapid. Soil units 7, 8, 9, 13, 14, and 15 required an overhead method for correct water economy and proper utilisation for plants whereas soil units 1, 2, 3, 4, 5, 6, 10, 11, and 12 ideally may require a surface irrigation method probably because of the moderate basic infiltration rate. The Hydrologic Soil Groups (HSGs) of the study sites were evaluated as A, B and C. Soil units 1, 2, 4, 7, 8, 11, 12, 14, and 15 fall under group A, and soil units 3, 5, 6, 10, and 13 fall under group B, while soil unit 9 falls under group C, corresponding to well-drained soil texture with low runoff potential, moderately well-drained coarse texture with moderate runoff potential and moderately fine texture with moderate to high runoff potential, respectively. It is suggested that water management under irrigation in the fadama sites of the study area depend largely on the nature and condition of the soil, and that sites with low runoff potential are likely to retain more water during the days compared to moderate and moderate-rapid.

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Section: Resultsmentioning

confidence: 99%

Section: Evaluation Of Cumulative Infiltration Of Moderate Soilsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation and classification of soil infiltration capacity, hydrologic soil groups and suitability rating classes for irrigation application of fadama soils

USMAN,

Usman

2024

Preprint

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“…The infiltration process is affected by numerous factors, most notably the soil properties (texture, structure, and bulk density), its initial moisture, the condition of its surface, the rate of water application, physical and chemical properties of water, the temperature of the soil and water, and the condition of the soil profile (homogeneous or stratified) [1,2]. Soil water dynamics play a significant role in the hydrological cycle [3,4]. Ref.…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil Bulk Density on Water Infiltration in Layered Soil

Al-Ogaidi,

Mahmood,

Mohammed

et al. 2023

Tikrit j. eng. sci.

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The optimal design of various irrigation systems requires knowledge and a deep understanding of various soil properties. Water infiltration in the soil is among the most prominent of these characteristics. Ten laboratory experiments were conducted to study the effect of the bulk density of stratified soils (two-layered soils), Where sandy loam soil, and clay soil were used. Three bulk density values were adopted for each soil, and experiments were conducted in different sequences. New empirical relationships were derived to calculate the cumulative infiltration depth and the depth of the wetting front in terms of time and the basic infiltration rate of the soil. The results revealed a high agreement between the values measured in the laboratory and those estimated from the proposed empirical equations for infiltration and wetting front depths with a coefficient of determination of 0.96 and 0.98, respectively. The results showed that the infiltration and wetting front depths increased with the cumulative infiltration time and the soil bulk density reduction, regardless of the soil location in the upper or lower layer within the stratified soil. It was also found that the infiltration rate was affected by the density of the upper stratum more than its influence by the change in the density of the lower stratum.

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