Dynamics of Selected Soil Quality Indicators in Response to Land Use/Cover and Elevation Variations in Wanka Watershed, Northwestern Ethiopian Highlands

Abera, Wondwosen; Assen, Mohammed

doi:10.2478/eko-2019-0010

Cited by 9 publications

(2 citation statements)

References 29 publications

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“…Similar result was reported in Ethiopia and elsewhere (Asmamaw and Mohammed, 2013;Kidanemariam et al, 2012;Panthi, 2010;Shazia et al, 2014). Contrary to our result, decreasing SOM as elevation decrease was also reported by Tsozu ea et al (2019) in Cameroon, Meliyo et al (2016) in Tanzania, and Abera and Assen (2019) in north-western Ethiopia, which might be due to the difference in the climatic condition and forest cover of the ecosystem. The availability of all species within ecosystems contributes to regulating carbon cycling because of their functional integration into food webs (Schmitz and Leroux, 2020).…”

Section: Soil Bulk Density and Som Concentration In Different Land-uses Across Elevationcontrasting

confidence: 99%

Impact of land use type and altitudinal gradient on topsoil organic carbon and nitrogen stocks in the semi-arid watershed of northern Ethiopia

Seifu

Elias

Gebresamuel

et al. 2021

Heliyon

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Understanding the role of soils in the soil organic carbon (SOC) and total nitrogen (TN) cycle is essential, assumed that these parameters are among the key soil quality indicators in a given landscape. Nothing but their status is in a state of continual flux due to land-use, soil management practices, and nature of topographic features. Thus, this study has evaluated the effect of land-use types and altitudinal gradient on SOC and TN concentrations and stocks at a watershed scale in northern Ethiopia. A total of 450 topsoil samples (0-30 cm depth) were collected from four different land-use types (Fig. 3) across three elevational categories (Fig. 1(b)), and their SOC and TN distributions were studied using descriptive statistics and geostatistical methods. Results revealed significant (p < 0.05) differences in SOC and TN concentrations and stocks by land-use type, elevation, and their interactions. The highest SOC stock was recorded at the lower elevation in GL (7.24 Mg C ha À1 ), followed by PF (4.65 Mg C ha À1 ) in the middle and GL (4.61 Mg C ha À1 ) in the upper elevations, respectively. On the other hand, the lowest SOC stock was observed in the BL areas of the upper (2.34 Mg C ha À1 ) and middle (2.75 Mg C ha À1 ) elevations. Spatially, the mean SOC stocks of the different land-uses were in the following order: GL > PF > CL > BL in upper elevation, PF > GL > CL > BL in middle elevation, and GL˃CL in lower elevation, respectively. The estimated total SOC and TN stocks of the study watershed were about 46,868.66 AE 7747.38 Mg C and 7,008.02 AE 441.25 Mg N, respectively. The notable difference is attributable to lack of vegetation cover, unsustainable land-use system, and land degradation via water erosion. Hence, these physical landscape disturbances result in disruption of SOC and TN's storage and stability. The SOC and TN stocks have shown a significant (p < 0.05) negative correlation with soil bulk density in the study watershed. The study concludes that variations in the land-use along topographic gradients drive the soils' SOC and TN storage. Therefore, land suitability planning, soil and water conservation measures, and reforestation practices are needed and practical worth increasing SOC and TN storage in the watershed.

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Section: Soil Bulk Density and Som Concentration In Different Land-uses Across Elevationcontrasting

confidence: 99%

Impact of land use type and altitudinal gradient on topsoil organic carbon and nitrogen stocks in the semi-arid watershed of northern Ethiopia

Seifu

Elias

Gebresamuel

et al. 2021

Heliyon

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“…In practice, this leads to decrease in pH because heavy metal compounds are hydrolytically acid . Thus, elevation specific land management strategies that improve these SQ indicators need to be emphasized (Abera, Assen, 2019).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the State of Soil’s Microbial Community in Condition of Intensive Influence of Pollutants

Stepanova

Pisareva

Раскатов

2021

Ekológia (Bratislava)

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This paper presents the study of toxicological state of the soil. It shows ecological and microbiological properties of the soil mantle in the areas of technological environmental impact and evaluates changes in the number of soil microorganisms as a result of toxic contamination of urban soil at different distances from the Moscow loop highway, and also as a result of dumping aluminum foundry slag in Orel region. Soil-inhabiting invertebrates species composition was evaluated at different soil contamination conditions. It was proven that the state of microbiocenosis changes depending on the intensity and character of the anthropogenic impact. It was established that soil fermentation and microbiological activity changes depending on the value of the cumulative heavy metals’ build-up coefficient. Study of interelement ties between the heavy metals concerned showed that they too may have the same anthropogenic origin regardless of their sources of origin. Pollution index indicates medium to high level of soil contamination in explored urban territories where vehicle emission is the main source of pollution, and dangerously high contamination of light-gray soil in the small settlement impacted by a nearby slag disposal site.

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Effects of land use types on soil quality dynamics in a tropical sub-humid ecosystem, western Ethiopia

Leul

Assen

Damene

et al. 2023

Ecological Indicators

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Dynamics of Selected Soil Quality Indicators in Response to Land Use/Cover and Elevation Variations in Wanka Watershed, Northwestern Ethiopian Highlands

Cited by 9 publications

References 29 publications

Impact of land use type and altitudinal gradient on topsoil organic carbon and nitrogen stocks in the semi-arid watershed of northern Ethiopia

Impact of land use type and altitudinal gradient on topsoil organic carbon and nitrogen stocks in the semi-arid watershed of northern Ethiopia

Assessment of the State of Soil’s Microbial Community in Condition of Intensive Influence of Pollutants

Effects of land use types on soil quality dynamics in a tropical sub-humid ecosystem, western Ethiopia

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