Evaluation of Rainfall Erosivity Index for Abuja, Nigeria Using Lombardi Method

Isikwue, MO; Ocheme, JO; Aho, M.I.

doi:10.4314/njt.v34i1.7

Cited by 10 publications

(11 citation statements)

References 12 publications

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“…Higher velocity and larger size of the raindrops results in higher kinetic energy and higher soil loss. According to Yu [132], most soil erosion researchers and soil conservationists recognize the positive correlation between erosivity and rainfall intensity [133].…”

Section: Solids and Liquids Annual Transportsmentioning

confidence: 99%

Erosion, Suspended Sediment Transport and Sedimentation on the Wadi Mina at the Sidi M’Hamed Ben Aouda Dam, Algeria

Hallouz

Meddi

Mahé

et al. 2018

Water

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Abstract:The objective of this study was to follow-up on the evolution of the hydro-pluviometric schemes and particular elements of Wadi Mina (6048 km 2 ) to the Sidi M'Hamed Ben Aouda Dam to evaluate the silting origin and status of this dam situated in the northwest of Algeria. The pluviometric study targeted a series of rains during 77 years , the liquid discharge data cover a period of 41 years and the solids and suspended sediment concentrations data cover very variable periods, starting from 22 to 40 years for the entire catchment area. The statistical tests for ruptures detection on the chronological series of rains and discharges indicate a net reduction of rains of more than 20% on the entire basin since 1970. The evolution of solids inputs was quantified: the maximum values are registered on autumn start and at the end of spring. The Wadi Mina basin brings annually 38 × 10 6 m 3 of water with a specific degradation of 860 t·km −2 ·year −1 . By comparing the results found, we thus observe that the basin upstream of SMBA (1B) Dam is the greatest sediment producer towards the dam because it shows a specific degradation equal to 13.36 t·ha −1 ·year −1 .

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Section: Solids and Liquids Annual Transportsmentioning

confidence: 99%

Erosion, Suspended Sediment Transport and Sedimentation on the Wadi Mina at the Sidi M’Hamed Ben Aouda Dam, Algeria

Hallouz

Meddi

Mahé

et al. 2018

Water

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“…This is applicable notably to erosion by land flow and rills, that intensity is mostly thought-about to be the foremost necessary downfall characteristic (Morgan, 1942). Soil degradation resulting from disintegration by storm water is seen together of the most environment related issues worldwide since its enormous natural and monetary effects, particularly in farming regions (Angulo and Begueria, 2009;Isikwue et al, 2015). One among the foremost necessary factors in eating away by water is that the erosive potential of driblet impact.…”

Section: S374mentioning

confidence: 99%

“…The ArIm (rainfall volume × most intensity), EI30 (rainfall energy× most 30-min intensity), and Kinetic Energy > 1 are the main indicators of rainfall erosivity (Isikwue et al, 2015;Yu, 1998). A direct computation of rainfall erosivity elements requires longterm facts for every quantity and depth of rainfall.…”

Section: S374mentioning

confidence: 99%

Assessment of Rainfall Erosivity Index using Lombardi Method for Amritsar, Punjab, India

Riar¹,

Kumar²,

Singh³

et al. 2022

EEC

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The erosivity thing with inside the conventional soil loss equation (USLE) affords a powerful approach ofcomparing the erosive energy of rainfall. This study estimated the erosivity factorbased on monthly and yearly periodic rush rainfall data of Amritsar, Punjab State covering a period of 45 year from1971 to 2015using Lombardi system (EI = 1.03 Vd1.51). It was found that early arrived rainfall led high erosive index.The data of seasonal distribution of precipitation illustrated that the most ferocious erosion imminence inthe area can be anticipated in August, especially in the areas that arenât defended by foliage cover, whichmight be due to climatic change. The average periodic erosivity indicator for the megacity during theperiod of study was 744.6 MJ mm/ hr. The correlation between periodic erosivity indicator andaverageperiodic rush was expressed as Y = 0.0002x + 0.8873. The R2 of 0.79 shows that rush alone contributed 79 %of the corrosion threat within the study period. The knowledge of impact of rainfall on erosivity is essentialin soil erosion threat assessment and for soil and water conservation planning. The information on effect ofprecipitation on erosivity is important in soil disintegration threat evaluation and for planning of waterand soil conservation.

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“…The original method requires the use of continuous long-term and high-resolution rainfall data for its proper application, but unfortunately this kind of information is usually difficult to obtain due to the commonly reduced number and unequal spatial distribution of rain gauge stations where pluviographic data are available [11]. A second drawback is represented by the common lack of long-term high-resolution rainfall data [12], leading to a low availability of accurate R-factor values for many countries [13].…”

Section: Introductionmentioning

confidence: 99%

Comparative Evaluation of the Rainfall Erosivity in the Rieti Province, Central Italy, Using Empirical Formulas and a Stochastic Rainfall Generator

et al. 2021

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Soil erosion caused by intense rainfall events is one of the major problems affecting agricultural and forest ecosystems. The Universal Soil Loss Equation (USLE) is probably the most adopted approach for rainfall erosivity estimation, but in order to be properly employed it needs high resolution rainfall data which are often unavailable. In this case, empirical formulas, employing aggregated rainfall data, are commonly used. In this work, we select 12 empirical formulas for the estimation of the USLE rainfall erosivity in order to assess their reliability. Moreover, we used a Stochastic Rainfall Generator (SRG) to simulate a long and high-resolution rainfall time series with the aim of assessing its application to rainfall erosivity estimations. From the analysis, performed in the Rieti province of Central Italy, we identified three equations which seem to provide better results. Moreover, the use of the selected SRG seems promising and it could help in solving the problem of hydrological data scarcity and consequently guarantee major accuracy in soil erosion estimation.

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Evaluation of Rainfall Erosivity Index for Abuja, Nigeria Using Lombardi Method

Cited by 10 publications

References 12 publications

Erosion, Suspended Sediment Transport and Sedimentation on the Wadi Mina at the Sidi M’Hamed Ben Aouda Dam, Algeria

Erosion, Suspended Sediment Transport and Sedimentation on the Wadi Mina at the Sidi M’Hamed Ben Aouda Dam, Algeria

Assessment of Rainfall Erosivity Index using Lombardi Method for Amritsar, Punjab, India

Comparative Evaluation of the Rainfall Erosivity in the Rieti Province, Central Italy, Using Empirical Formulas and a Stochastic Rainfall Generator

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