scholarly journals The influence of grazing and cultivation on runoff, soil erosion, and soil nutrient export in the central highlands of Ethiopia

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Zenebe Adimassu ◽  
Lulseged Tamene ◽  
Degefie T. Degefie
Keyword(s):  
Soil Erosion ◽  
Soil Nutrient ◽  
Nutrient Export ◽  
Central Highlands

scholarly journals Evaluation of Soil Erosion and Its Prediction Protocols around the Hilly Areas of Mubi Region, Northeast Nigeria

2021 ◽  
Author(s):  
Ijasini John Tekwa ◽  
Abubakar Musa Kundiri
Keyword(s):  
Soil Erosion ◽  
Soil Nutrient ◽  
Surface Erosion ◽  
Mountain Ranges ◽  
Concentrated Flow ◽  
Erosion Processes ◽  
Physically Based ◽  
Physically Based Models ◽  
Peasant Farmers ◽  
Northeast Nigeria

Soil erosion is a severe degradation phenomena that has since received huge attention among earth scientists in the developed worlds, and same efforts are now extending to Africa and other parts of underdeveloped worlds. This chapter focuses on collation, analyzing and appraising of soil ero¬sion studies around Mubi region, Northeast Nigeria, where the Mandara mountain ranges is notably responsible for spurring soil erosion. This chapter reviewed reports on the: (a) Mubi regional soil properties, erosion processes and principles of their occurrence, (b) soil erosion predictions using empirical and physically-based models by researchers, and, (c) economicimplications and managements of soil erosion in the region. This chapter reveals that classical and rill/ephemeral gully (EG) erosion features received more research attention than surface erosion such as splash and sheet. No information was reported on effects of landslides/slumping noticeable along rivers/stream banks around the region. The few economic analysis reported for soil nutrient and sediments entrained by concentrated flow channels were very high and intolerable to the predominantly peasant farmers in the region. It is hoped that the considerable volumes of erosion researches and recommendations assembled in this chapter shall be carefully implemented by prospective farmers, organizations, and residents in the Mubi region.

scholarly journals Assessing the impacts of different land uses and soil and water conservation interventions on runoff and sediment yield at different scales in the central highlands of Ethiopia

2020 ◽  
pp. 1-15 ◽  
Author(s):  
Tesfaye Yaekob ◽  
Lulseged Tamene ◽  
Solomon G. Gebrehiwot ◽  
Solomon S. Demissie ◽  
Zenebe Adimassu ◽  
...  
Keyword(s):  
Soil Erosion ◽  
Sediment Yield ◽  
Water Conservation ◽  
Moisture Stress ◽  
Quantitative Information ◽  
Soil And Water Conservation ◽  
Land Uses ◽  
Central Highlands ◽  
The Government ◽  
Soil And Water

Abstract To tackle the problem of soil erosion and moisture stress, the government of Ethiopia introduced a yearly mass campaign where communities get together and implement various soil and water conservation (SWC) and water harvesting (WH) practices. Although the interventions are believed to have reduced soil erosion/sediment yield and enhanced surface and ground water, quantitative information on the impacts of various options at different scales is scarce. The objective of this study was to assess the impacts different land uses, SWC and WH interventions on water and suspended sediment yield (SSY) at plot and watershed scales in the central highlands of Ethiopia. Standard erosion plot experiments and hydrological stations were used to monitor the daily water and SSY during 2014 to 2017. The results show differences between treatments both at plot and watershed scales. Runoff and soil loss were reduced by an average 27 and 37%, respectively due to SWC practices at the plot level. Overall, SWC practices implemented at the watershed level reduced sediment yield by about 74% (in the year 2014), although the magnitude of sediment reduction due to the SWC interventions reduced over time. At both scales it was observed that as the number of years since SWC measures have been in place increased, their effectiveness declined due to the lack of maintenance. This study also revealed that extrapolating of plot data to watershed scale causes over or under estimation of net erosion.

scholarly journals Effect of Land Cultivation on Soil Nutrient Sedimentation in Water at Southern China

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Jianshuang Gao ◽  
Yuhe Zhang ◽  
Zhuangzhuang Qian ◽  
Shunyao Zhuang
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Soil Erosion ◽  
Water Conservation ◽  
Southern China ◽  
Soil Nutrient ◽  
Nitrogen And Phosphorus ◽  
Nutrient Distribution ◽  
Significant Difference ◽  
Land Cultivation

Soil erosion associated with land cultivation exerts a great impact on ecological environment. Such an impact is specific of land, crop, tillage, management and so on. This study aimed to investigate the effects of crop cultivation on water quality by comparing nutrient distribution in the sediment at Southern China. Two sedimentation sites adjacent to the uncultivated (S1) and cultivated upland (S2) were selected and samples were analyzed. Results showed that soil pH decreased with the increasing depth above 20 cm and then kept relatively stable of the both sediments. Soil organic matter, nitrogen and phosphorus contents decreased with the increasing depth. There was no significant difference between two sediments in organic matter and nitrogen contents, but the total phosphorus and extractable phosphorus contents in S2 were much higher than that in S1. The data indicated that soil eroded from S2 could possess much high potential to deteriorate water quality. Nutrient sedimentation can reflect the history of soil erosion and provide useful information for sustainable soil management and water conservation through improving cultivation and tillage measures.

scholarly journals Uso y difusión del frijol de abono (Mucuna deeringiana) en las laderas del litoral Atlántico de Honduras.

2016 ◽  
Vol 5 ◽  
pp. 15 ◽  
Author(s):  
Daniel Buckles ◽  
Ignacio Ponce ◽  
Gustavo Sain ◽  
Gilmer Medina
Keyword(s):  
Soil Erosion ◽  
Central America ◽  
Water Conservation ◽  
Lower Risk ◽  
Soil Nutrient ◽  
Efficient Technology ◽  
Land Preparation ◽  
Rest Periods ◽  
Land Tenancy ◽  
Determining Factor

The soil, nutrient and water conservation is the main problem faced by farmers and investigators under the corn crop-based systems in Central America and Mexico. Several farmers from Honduras have come up with an efficient technology for the corn planted on hills, in which the bean manure is planted in rotation with corn during the dry season. The results from the conducted survey, at the Departamento de Atlantida in Honduras, indicate that 66 % of the farmers grow most of the corn through the protective mat produced by the beans during the rainy season. Among the advantages of this rotation, compared to the traditional burned and cleared land, are the higher yields with les ser dependency of external imputs, shorter rest periods, lower land preparation costs, less soil erosion and lower risk of drought damages. The problems linked to the diffusion ofthe system include the risk ofland slides and a higher plague's incidence (rats) on the corn planted through the manure mat. Usually, the amount of land available in the regionalland markets is the determining factor on the diffusion of this system, and not the size of the farm nor the form of land tenancy.

scholarly journals Effects of cultivating different crops on soil erosion of slope farmland

2021 ◽  
pp. 925-932
Author(s):  
Zhen Guo ◽  
Juan Li
Keyword(s):  
Soil Erosion ◽  
Crop Yield ◽  
Soil Texture ◽  
Erosion Resistance ◽  
Sandy Loam ◽  
Soil Nutrient ◽  
Size Composition ◽  
Nutrient Content ◽  
Available Phosphorus ◽  
Slope Farmland

The soil nutrient content, particle size composition, crop yield and erosion resistance were studied considering the slope farmland with different slope sizes and different crops as the research object. The results showed that the available phosphorus content was higher under the wheat planting mode. Rape planting was conducive to the accumulation of organic matter, total nitrogen and available potassium, and nutrient accumulation was more obvious when treated at 5° slope. The soil texture was sandy loam under the wheat planting mode. After rapeseed planting, the soil texture began to change to silt loam. The crop yield was the highest under different planting modes at 5°. Rapeseed was found to increase the soil erosion resistance of sloping farmland compared with wheat, and the greater was the slope, the stronger the erosion resistance. Bangladesh J. Bot. 50(3): 925-932, 2021 (September) Special

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