Irrigation Capability Evaluation of Illushi Floodplain, Edo State, Nigeria

Umweni, Aigboghosa Samson; Ogunkunle, A. O.

doi:10.1016/s2095-6339(15)30008-3

Cited by 8 publications

(6 citation statements)

References 6 publications

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“…3 (1.70 g•cm -3 ), where the sand content was the highest (45.4%). The BD range of alluvial soils can be very wide -smaller values were observed in the Ap horizons and increased with depth [36,41,42].…”

Section: Resultsmentioning

confidence: 99%

The Use of Different Indicators to Evaluate Chernozems Fluvisols Physical Quality in the Odra River Valley: A Case Study

Borek¹

2019

Pol. J. Environ. Stud.

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Soil quality is a very important issue that continuously evaluates and develops in different countries. The concept of soil quality was developed in the 20 th century and contains three main aspects: physical, chemical and biological [1][2][3]. From an agricultural point of view, soil physical quality (SPQ) decreases mainly in cases of soil cultivation due to decreases in soil porosity, increased soil bulk density (BD), aeration and water balance, as well as increases in soil penetration resistance, structural degradation and erosion risk [4][5][6][7]. Soil quality can influence yield in terms of quantity and/or quality, which is not negligible when viewed against the background of what is sometimes described as growing "soil degradation" [8].Alluvial soils have the highest fertility and productivity with respect to other soils [9]. They are present mostly along rivers and are carried by its

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Section: Resultsmentioning

confidence: 99%

The Use of Different Indicators to Evaluate Chernozems Fluvisols Physical Quality in the Odra River Valley: A Case Study

Borek¹

2019

Pol. J. Environ. Stud.

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“…The area is characterized by a tropical climate, with an annual average rainfall amount of 1900 mm, mean annual temperatures ranging from 23 °C to 37 °C and mean annual relative humidity ranging from 89 % in the morning (10.00 AM) to 75 % in the evening (4 PM) (NIFOR, 2020). Generally, the soils of this area are red Ferrasols, derived from coastal plain sands (unconsolidated sands and sandy clay) and alluvial deposits (Umweni, 2007), which are the formations of sedimentary rock. The topography is a terrace (0.3 % to 9 %) throughout the study area.…”

Section: Methodsmentioning

confidence: 99%

Suitability assessment for oil palm (Elaeis guineensis) and coconut (Cocus nucifera) cultivation in coastal plain sands of South Southern Nigeria

Okunsebor

Umweni

Agbogun

2021

ipas

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Some soils of coastal plain sands in South Southern Nigeria were assessed for oil palm and coconut cultivation. This research was carried out to evaluate the soils of the study area using rigid grid soil survey methodology at detailed scale. The study area (128.11 ha) was delineated into four soil mapping units based on soil type. A pedon was sunk in each mapping unit and described according to FAO. Three soil orders, including Entisols (Ahiara), Inceptisols (Kulfo) and Ultisols (Orlu), were identified. Parametric and limitation methods of land suitability evaluation were used. Major limitations to assessment were climate (mean annual temperatures) and soil physical properties (texture/structure). Aggregate suitability rating (both actual and potential) showed that Ultisols (pedons 3 and 4, covering 56.73 ha) was moderately suitable (S2) for coconut and marginally suitable (S3) for oil palm, Inceptisols (pedon 2, covering 54.25 ha) was marginally suitable (S3) for coconut but not suitable (NS) for oil palm, and Entisols (Pedon 1covering 17.13 ha) was not suitable (NS) for any of the crops. Thus, area with Entisols should not be used for cultivation of any of the crops due to major limitation in texture. Moreover, both assessment approaches captured the major limitations. Therefore, the use of any of the approaches employed in this study and for these crops becomes a matter of choice as both of them showed no major differences in the application of their procedures.

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“…Menurut Direktorat Irigasi dan Rawa (2013), peta topografi merupakan dasar untuk memeriksa, menambah dan memperbesar detail-detail topografi yang salah satunya relevan seperti: Selain itu, pentingnya pengetahuan tentang kapasitas penampungan air pada jaringan irigasi yang ada diperlukan dalam penghitungan data dasar untuk studi irigasi maupun kepentingan desain teknik. Ini termasuk kebutuhan air untuk irigasi, frekuensi irigasi, dan durasi pemompaan (Umweni & Ogunkunle, 2014).…”

Section: Gambar 9 Peta Area Layanan Irigasi Dan Perencanaanunclassified

Pemetaan Trase Jaringan Irigasi Melalui Analisis Geospasial (Studi Kasus Daerah Irigasi Cibuluh, Jawa Barat)

Sambah¹,

Kuncoro²,

Anam³

2017

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Planning of irrigation canal has always faced the problems due to the overlapping of different land use. Irrigation planning should consider the irrigation canals surrounding different land use. Optimization of the determination of the irrigation network must be applied through the assumption of the physical condition of topographical as well as the proximity between irrigation canal and area of irrigation. The aims of this study were: (1) Mapping existing condition of irrigation canals in DI Cibuluh related to the land use and topography of the study area; (2) Mapping and determining the optimal trace irrigation networks based on spatial analysis of the existing land use and topographical characteristics;(3) Establish a simulation concepts of re-classification related to irrigation services area based on the elevation of the study area using geospatial analysis. The study was conducted through geospatial analysis methods in Geographic Information Systems. Digital Elevation Models (DEM) were the basic data in simulating irrigation services area. The results showed that there were two overlapping land use type (forests and industrial areas) that should be subtracted from the irrigated areas. Alignment of Irrigation network was planned without overlapping forest and industrial area, so that the planning was more focus on simulation based on the control points by processing adjustments as well as high elevation contour and water height. ABSTRAKPerencanaan jalur irigasi seringkali mengalami kendala dengan adanya tumpang tindih antar penggunaan lahan yang berbeda. Perencanaan jalur irigasi harus mempertimbangkan tutupan lahan disekitarnya. Optimalisasi penentuan jaringan irigasi harus dilakukan melalui asumsi kondisi fisik lahan atau topografis kawasan serta kedekatan antar jaringan irigasi dengan daerah irigasi. Kajian optimalisasi penentuan trase jaringan irigasi melalui analisis geospasial di Daerah Irigasi Cibuluh, Provinsi Jawa Barat dengan pendekatan SIG ini bertujuan untuk (1) Memetakan kondisi eksisting rencana jalur irigasi di Daerah Irigasi Cibuluh terkait pertimbangan dengan tutupan lahan dan kondisi topografi di wilayah kajian; (2) Memetakan serta menentukan trase jaringan irigasi yang optimal berdasarkan analisis spasial terhadap tutupan lahan yang ada serta karakteristik topografi; (3) Membangun konsep simulasi berjenjang terkait daerah layanan irigasi berdasarkan ketinggian wilayah kajian melalui analisis geospasial. Kajian ini dilakukan melalui metode analisis geospasial dalam Sistem Informasi Geografis. Model ketinggian digital atau DEM merupakan data awal yang digunakan dalam membuat simulasi area layanan irigasi. Hasil kajian menunjukkan bahwa pada Daerah Irigasi Cibuluh terdapat dua tumpang tinding tutupan lahan yang harus dikurangkan dari Daerah Irigasi tersebut. Tutupan lahan ini adalah kawasan hutan dan kawasan industri. Trase jaringan irigasi direncanakan tanpa memotong maupun melewati tutupan lahan hutan dan industri, sehingga perencanaan lebih kepada simulasi berdasarkan titik kontrol melalui...

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Irrigation Capability Evaluation of Illushi Floodplain, Edo State, Nigeria

Cited by 8 publications

References 6 publications

The Use of Different Indicators to Evaluate Chernozems Fluvisols Physical Quality in the Odra River Valley: A Case Study

The Use of Different Indicators to Evaluate Chernozems Fluvisols Physical Quality in the Odra River Valley: A Case Study

Suitability assessment for oil palm (Elaeis guineensis) and coconut (Cocus nucifera) cultivation in coastal plain sands of South Southern Nigeria

Pemetaan Trase Jaringan Irigasi Melalui Analisis Geospasial (Studi Kasus Daerah Irigasi Cibuluh, Jawa Barat)

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