Examination of soil and slope factors as erosion controlling variables under varying climatic conditions

Manyevere, Alen; Muchaonyerwa, Pardon; Mnkeni, P. N. S.; Laker, M. C.

doi:10.1016/j.catena.2016.06.035

Cited by 21 publications

(13 citation statements)

References 15 publications

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“…Subsequently, highlighting the statistical analysis result (the slope and erosion equations and correlation coefficient values), it indicated diversity of land forms reflected from the land slope values resulted in various effects on erosion in agreement with some previous studies (e.g., Shrestha et al 2014;Liu et al 2016;Xu et al 2015;Manyevere et al 2016), though those studies were not investigating erosion-slope correlation in some different classes of land slope. Furthermore, observing correlation coefficient values for five land slope classes (Table 7), it revealed that the highest and lowest effects of the land slope on erosion were found in low sloping and moderate sloping area, respectively.…”

Section: Correlation Of Soil Erosion Land Use and Land Slopesupporting

confidence: 85%

“…Erosion assessment model was validated by field assessment data. The effect of a land slope on soil erosion has been investigated in many studies (e.g., Fang et al 2015;Liu et al 2016;Xu et al 2015;Manyevere et al 2016;Shen et al 2016); however, the correlation of land slope and erosion in specific land slope areas has not been investigated. Accordingly, this study also presented the land slope and erosion correlation in five different classes of a land slope.…”

Section: Introductionmentioning

confidence: 99%

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Investigating spatial contribution of land use types and land slope classes on soil erosion distribution under tropical environment

2019

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Increasing land occupancy for farming without conservation principles, particularly in the Indonesian island of Java, is resulting in a severe erosion problem. This study investigated the characteristics of soil erosion and the spatial contribution of land use and land slope on erosion under the tropical climate in a watershed scale. The Revised Universal Soil Loss Equation model with locally source parameters assessment in a Geographic Information Systems was used for soil erosion calculation. Erosion (in unit t ha −1 yr −1 ) and land slope were classified into five classes. Meanwhile, the types of land use were classified into six types. The results showed critical erosions largely occurred in steeply sloping areas, where the main source of erosion was farmland. We found that land cultivation practices have more potential to increase soil erosion in slopes steeper than 15%, and the large amount of erosions were generated from some small areas of the watershed. This study also demonstrated the land slope and erosion correlation equations for five land slope classes, which detected that the largest effect of land slope on erosion was recognized in the low sloping areas. These findings indicated erosion studies in various land slope zones were necessary to understand the uniqueness of erosion in specific land slope areas. The present study provides a fundamental knowledge of land slope zonations for erosion control planning particularly in high-risk erosion areas.

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Section: Correlation Of Soil Erosion Land Use and Land Slopesupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Investigating spatial contribution of land use types and land slope classes on soil erosion distribution under tropical environment

2019

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“…The soils have a high acid saturation (50%) and low pH (KCl) of 4, dominated by kaolinites, hematite, goethite, Fe and Al oxides, and gibbsite clay minerals. The Oxisols were generally the most stable and recommended as prime cropping land that should be optimized for crop production (Manyevere et al, 2016). Initially, the soil was air-dried and characterized for various chemical properties (Table 1).…”

Section: Source Of Growing Materialsmentioning

confidence: 99%

Vermicompost Amended With Rock Phosphate as a Climate Smart Technology for Production of Organic Swiss Chard (Beta vulgaris subsp. vulgaris)

Ajibade¹,

Mupambwa²,

Manyevere³

et al. 2022

Front. Sustain. Food Syst.

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Vermicomposting is being promoted as climate-smart agriculture (CSA) technology for developing organic nutrient sources that can be adopted by smallholder farmers. The amendment of soils with cost-effective and available inorganic fertilizers like rock phosphate (RP) and phosphorus-solubilizing microorganisms should also be promoted. Our study investigated the seedling and maturity growth of Swiss chard. The crop maturity study investigated the effect of amending an Oxisol soil with three phosphorus (P) sources applied at three different rates (0, 25, and 50 mg P kg−1 soil), cow and pig manures, and P-solubilizing bacteria resulting in the following treatments: control (soil), soil + RP alone, soil + RP-enriched cow manure vermicompost (VC) with phosphorus-solubilizing bacteria (PSB), and soil + RP-enriched pig manure vermicompost (VP) with PSB. The study investigated the growth performance and accumulation of copper (Cu), zinc (Zn), chromium (Cr), and lead (Pb) in the edible parts of Swiss chard (Beta vulgaris subsp. valgaris var. Cicla). The seedlings were grown using pine bark compost and the three P sources (VC, VP, and RP) at five different application rates (0, 25, 50, 75, and 100%). The results revealed that the use of 50 mg P kg−1 as VP gave the highest fresh weight of 39.78 g, leaf area of 240.41 cm2, and a total P in tissues of 326.91 mg kg−1 at 8 weeks after transplanting. The 50 mg P kg−1 application as VC resulted in a higher Zn content of 8.50 mg kg−1, which was above the permissible level. These results suggest that the best treatment mixture for establishing fully matured Swiss chard was the 50 mg P kg−1 as VP. Therefore, pig manure vermicompost that has been inoculated with phosphorus-solubilizing microorganisms is a promising CSA technology that can improve organic vegetable production by smallholder farmers.

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“…This has leaded to selectively transport clay and silt fractions from the higher altitudes down the slopes leaving behind sand fractions (Yimer et al, 2006). In high precipitation environments too much precipitation can result in nutrient leaching in sandy soils (Anderson et al, 1998) and soil stability is influenced by secondary clay minerals (Manyeverea et al, 2016). Additionally, as slope degree increases less water enters the soil and more runs off as overland flow.…”

Section: Slope Degree and Soil Propertiesmentioning

confidence: 99%

The Effect of Altitudinal Zone on Soil Properties, Species Composition and Forage Production in a Subalpine Grassland in Northwest Greece

Roukos¹,

Akrida-Demertzi²,

Koutsoukis³

et al. 2017

Appl Ecol Env Res

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Roukos et al. : The effect of altitudinal zone on soil properties, species composition and forage production in a subalpine grassland in northwest Abstract. The impact of altitudinal gradient on soil properties, species composition and forage production was assessed in the subalpine grassland of "Kostilata" in northwestern Greece. The area is important for endemic species and for its traditional transhumant livestock system. Soil properties, species composition and forage production were determined annually and monthly during three consecutive years (April 2013 -October 2015 from thirty experimental plots located in three altitudinal zones (i.e., lower, middle, and upper). Our results suggested that the altitudinal zo ne strongly affected soil physical and chemical properties, species composition and forage production. Indeed, altitude a.s.l. was positively correlated with soil sand content and negatively correlated with forage production. It is found that stocking rate exceeded the grazing capacity, which posed a hazard to grassland sustainability; a belief amplified by the high sand content in soil and a terrain with steep slopes, which would increase the risk of further soil erosion at all altitudinal zones.

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Examination of soil and slope factors as erosion controlling variables under varying climatic conditions

Cited by 21 publications

References 15 publications

Investigating spatial contribution of land use types and land slope classes on soil erosion distribution under tropical environment

Investigating spatial contribution of land use types and land slope classes on soil erosion distribution under tropical environment

Vermicompost Amended With Rock Phosphate as a Climate Smart Technology for Production of Organic Swiss Chard (Beta vulgaris subsp. vulgaris)

The Effect of Altitudinal Zone on Soil Properties, Species Composition and Forage Production in a Subalpine Grassland in Northwest Greece

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