Erodibility of soils of varying land utilization types and lithologic materials in central southeastern Nigeria

Land use and parent materials influence behaviour of soils including responsiveness to erosion forces. The study investigated some soil properties related to erodibility in Abia and Imo States of Nigeria. Soil sampling was guided by geology and land use type. Random sampling technique was adopted in field studies. Two parent materials and three land use types were chosen for the study. In each parent material, three land use types were studied and in each land use, three soil profiles were sunk, described, and sampled using FAO procedure. Soil samples were subjected to laboratory analyses and data generated were analyzed using descriptive and inferential statistical tools. Results showed that sand sized particles ranged from 533.10 to 778.80 g kg–1 and this distribution differed significantly between parent materials. Silt content ranged from 141.70 g kg–1 in soils derived from false-bedded sandstone to 202.20 g kg–1 in shale-derived soils. Clay-sized particles ranged from 77.30 g kg–1 in soils derived from false-bedded sandstone to 264.70 g kg–1 in shale-derived soils, respectively. Water-stable aggregate ranged from 19.38% in false-bedded sandstone to 29.23% in shale-derived soils. The DR (dispersion ratio) mean values ranged between 4.26 in shale and 8.46 in false-bedded sandstone, while the CDI (clay dispersion index) mean values ranged between 2.17 in shale and 8.41 in false-bedded sandstone, respectively. The forest soils had the lowest values of both DR (6.89) and CDI (6.40) for soils of the false-bedded sandstone, 3.85 and 1.59 for those derived from shale. The clay flocculation index (CFI) had mean of 2.16 in false-bedded sandstone and 7.83 in shale. In soils of the varying land use types, the mean soil pH (H2O) ranged from 4.28 to 4.64 in soils derived from false-bedded sandstone and 4.27-5.57 in those derived from Shale. From the results, parent material and land use influenced soil erodibility parameters (water-stable aggregates, mean-weight diameter, DR, CDI, and CFI) and other soil properties such as organic carbon, bulk density, and moisture content.

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Field and Laboratory Evaluation of Dynamics in Soil Properties of Selected Land Use Types in Owerri, Southeastern, Nigeria

International Journal of Agriculture and Rural Development ◽

10.4314/ijard.v13i2.67402 ◽

2011 ◽

Vol 13 (2) ◽

Author(s):

BU Uzoho

Keyword(s):

Land Use ◽

Soil Properties ◽

Laboratory Evaluation ◽

Southeastern Nigeria ◽

Land Use Types

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Soil microaggregates stability under different land use types in southeastern Nigeria

CATENA ◽

10.1016/j.catena.2009.06.001 ◽

2009 ◽

Vol 79 (2) ◽

pp. 103-112 ◽

Cited By ~ 16

Author(s):

C.C. Opara

Keyword(s):

Land Use ◽

Southeastern Nigeria ◽

Land Use Types

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Effects of Land Use Types on Selected Soil Properties in Central Highlands of Ethiopia

Applied and Environmental Soil Science ◽

10.1155/2020/7026929 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Daniel Jaleta Negasa

Keyword(s):

Land Use ◽

Soil Properties ◽

Lower Layer ◽

Cultivated Land ◽

Exchangeable Sodium Percentage ◽

Exchangeable Sodium ◽

Land Use Types ◽

Sodium Percentage ◽

Central Highlands ◽

Effects Of Land Use

Rapid land use changes have been observed in recent years in central Ethiopia. The shift from natural ecosystem to artificial ecosystem is the main direction of change. Therefore, this study was initiated to assess the effects of land use types on selected soil properties in Meja watershed, central highlands of Ethiopia. The randomized complete block design, including three adjacent land use types as treatments with three replications and two soil depths (0–15 and 15–30 cm), was applied in this study. There were significant differences in some soil properties among the three land use types. Lower soil pH and electric conductivity were observed in cultivated land soils than Eucalyptus woodlots soils. This has indicated the worsening soil conditions due to the shift from Eucalyptus woodlots to cultivated land. Less decomposition rate of the Eucalyptus leaves and debris collection for fuel could result in lowest soil organic carbon at the upper layer of Eucalyptus woodlot soils. However, the highest soil organic carbon at the lower layer was observed in Eucalyptus woodlot soils. The presence of highest soil potassium, cation exchange capacity, and exchangeable potassium in cultivated land soil was related to application of artificial fertilizers. Grassland soils have highest exchangeable sodium at the lower layer while highest soil carbon and sum cations at the upper layer, which can be related to the grass root biomass return and less surface runoff on grassland. There was the highest exchangeable sodium percentage on Eucalyptus woodlot soils at the upper layer; it can be due to the less surface nutrient movement and growth characteristics of the tree. The soils in cultivated land was shifted to more acidic and less electric conductivity.This shift can lead to soil quality deterioration that affects the productivity of the soils in the future.Nutrient leaching, application of artificial fertilizer, soil erosion, and continuous farming have affected the soil properties in cultivated land. The presence of highest exchangeable sodium percentage and lowest sum of cations at the upper layer of soil in Eucalyptus woodlot should be noted for management and decision makers. The previous negative speculations on Eucalyptus woodlots which can be related with the soil texture, soil moisture, bulk density, total nitrogen, exchangeable magnesium, calcium, and available sulfur should be avoided because there were no significant differences observed among the three land use types in the study area. The study recommends further studies on the effects of Eucalyptus on soil properties by comparing among different ages and species of Eucalyptus. Finally, planting of Eucalyptus on central highlands of Ethiopia should be supported by land use management decision.

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The effects of land use types and soil depth on soil properties of Agedit watershed, Northwest Ethiopia

Ethiopian Journal of Science and Technology ◽

10.4314/ejst.v11i1.4 ◽

2018 ◽

Vol 11 (1) ◽

pp. 39 ◽

Cited By ~ 1

Author(s):

Eyayu Molla Fetene ◽

Mamo Yalew Amera

Keyword(s):

Land Use ◽

Soil Properties ◽

Soil Depth ◽

Northwest Ethiopia ◽

Land Use Types ◽

Effects Of Land Use

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Variation in soil properties under different land use types managed by smallholder farmers along the toposequence in southern Ethiopia

Geoderma ◽

10.1016/j.geoderma.2016.11.021 ◽

2017 ◽

Vol 290 ◽

pp. 40-50 ◽

Cited By ~ 28

Author(s):

Tariku Negasa ◽

Haile Ketema ◽

Abiyot Legesse ◽

Mulugeta Sisay ◽

Habtamu Temesgen

Keyword(s):

Land Use ◽

Soil Properties ◽

Smallholder Farmers ◽

Southern Ethiopia ◽

Land Use Types

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Soil organic matter and related soil properties in forest, grassland and cultivated land use types

International Journal of the Physical Sciences ◽

10.5897/ijps11.427 ◽

2011 ◽

Vol 6 (32) ◽

Author(s):

Yeoh Chooi Keen

Keyword(s):

Land Use ◽

Organic Matter ◽

Soil Organic Matter ◽

Soil Properties ◽

Cultivated Land ◽

Land Use Types

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Sediment yield, detachment, and runoff from soil under selected parent materials in Southeastern Nigeria.

10.36265/njss.2019.290106 ◽

2019 ◽

pp. 35-44

Author(s):

Agim L.C. ◽

Igwe C.A.

Keyword(s):

Sediment Yield ◽

Clay Fraction ◽

Negative Relationship ◽

Parent Material ◽

Rainfall Simulation ◽

Southeastern Nigeria ◽

Parent Materials ◽

Wet Condition ◽

Laboratory Procedures ◽

Physical And Chemical

Soil degradation due to water erosion among other causes has been a major problem in southeastern Nigeria, therefore a study was conducted to determine sediment yield, detachment, and runoff from soil under selected parent material in southeastern Nigeria. The objective was to characterize the selected soils in terms of their physical and chemical parameters, carry out rainfall simulation, and to establish some relationships that exist among studied parameters with selected soil properties. Soil samples were collected in three replicates from twenty locations, 5 location each from 4 geologic formations namely Asu River Group, Bende Ameki Group, Coastal Plain Sand and False bedded Sandstone at a depth of 0 – 20 cm using soil auger. Standard laboratory procedures were followed for samples for routine analyses while the rest was subjected to rainfall simulation at an intensity of 190 mm/hr for a period of 30 minutes under dry and wet conditions of the soils. Result showed that significant P<0.05) differences among studied parameters. Sediment yield under wet and dry states ranged from 0.56 - 3.95 kg m-2 hr-1 and from 0.80 - 4.97 kg m-2hr-1. The highest sediment yield under both conditions was recorded at Ishiagu, Bende, Obinze and Okigwe from ARG, BAG, CPS and FBS derived parent materials, respectively. Detachment under both conditions ranged from 0.04 - 0.13 kg m-2hr-1 and from 0.03 - 0.21 kg m-2 hr- . Similarly, runoff ranged from 79.80 - 125.30 mm and 28.00 – 106.90 mm under wet and dry states. Result also indicated a negative relationship between clay fraction and sediment yield (r= - 0.62) under dry and ( r= - 0.27) under wet condition. Conclusively, the study noted that rainfall has great impact on studied soils as higher values of sediment yield and detachment were noted mostly under dry than in wet conditions.

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