Land Use Effects on Soil Quality Indicators: A Case Study of Abo-Wonsho Southern Ethiopia

Moges, Awdenegest; Dagnachew, Melku; Yimer, Fantaw

doi:10.1155/2013/784989

Cited by 75 publications

(62 citation statements)

References 22 publications

(33 reference statements)

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“…This implies that crop residues are stores for nutrients that upon decomposing would release plant nutrients for the subsequent crops. However, the small return of crop residues into crop fields including the study area is common problem in Ethiopia (Amede et al 2001;Abera and Belachew 2011;Belete 2014;Mekonnen 2014). This calls for looking options that could restore and maintain the soil chemical and physical health.…”

Section: Crop Residue Managementmentioning

confidence: 99%

Physiographic characteristics of agricultural lands and farmers’ soil fertility management practices in Wolaita zone, Southern Ethiopia

et al. 2016

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Background: Understanding the landscape features of agricultural lands and soil management practices is pertinent to verify the potential and limitations of the soil resources; and devise relevant land management strategies. However, information is lacking in Wolaita, Southern Ethiopia. Thus, this study aimed at investigating the physiographic characteristics of agricultural lands, farmers' soil fertility management practices and their influences on soil fertility and crop productivity was conducted. The survey involved 789 randomly sampled agricultural lands. Soil sample as well as data on slope, topography, land use, crop rotation, fallowing, cropping intensity, crop residue management, fertilizer use and farmers' estimated crop yield were collected and evaluated. Results:The result indicated that agriculture has been practiced under diverse slope positions (1-58%). This significantly influenced most of soil physico-chemical properties in which an increase in soil bulk density, and decrease in available phosphorous, exchangeable calcium, extractable boron, copper, iron and zinc with an increase in slope positions were recorded. Furthermore, continuous cultivation without any fallow periods and complete crop residue removal (96%) were common practices. Fertilizer use was not sufficient. The average use (kg ha −1 ) was 30 and 9 for diammonium phosphate (DAP) and urea, respectively, and about 89% of study area received manure below 1.5 t ha −1 . All these limitations made farmers to experience lower crop yield than the national average estimates. Conclusion:Based on the result, it is possible to conclude that the following soil management interventions such as soil conservation, application of sufficient organic and inorganic fertilizers are recommended to restore the soil fertility and improve crop productivity.

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Section: Crop Residue Managementmentioning

confidence: 99%

Physiographic characteristics of agricultural lands and farmers’ soil fertility management practices in Wolaita zone, Southern Ethiopia

et al. 2016

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“…The use of fertilizers, with the expectation of over-production, in the agricultural land led to an increase in the concentration of available phosphorus. The low concentrations of available phosphorus in the pasture and forest soils might have been related to phosphorus fixation [28].…”

Section: A Effects Of Land Use Types On Soil Quality Parametersmentioning

confidence: 99%

Soil Quality Assessment for Different Land Use in the Panchase Area of Western Nepal

Kalu¹,

Koirala²,

Khadka³

et al. 2015

IJEP

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Abstract-Soil quality management helps to maintain biological productivity; air and water quality; and human habitation and health. As improper land management can deteriorate soil function, the evaluation of soil quality for different land use is necessary. To evaluate soil quality for different land use types in the Panchase area, soil quality index was computed on the basis of the soil management assessment framework. Protected forest has the highest soil quality index (0.95) followed by community forest (0.91), pasture (0.88), khet (0.81), and bari (0.79). Available phosphorus and soil organic carbon play major roles in making significant differences in the SQI among the different land use types. Less anthropogenic impact and vegetation in forest land result in better soil quality, whereas attempts to increase productivity in cultivated land degrade the soil quality. The proper application of fertilizer and giving priority to organic farming is recommended to improve soil quality.

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“…In addition, clay fraction also contributes for the presence of higher CEC in EBCSTS. Clay is a negatively charged particles that commonly absorb and hold positively charged ions and provides protection against depletion of nutrients through its colloidal aggregates [1,14,48]. On the other hand, the presence of higher clay content in CBCVTS would not guarantee higher CEC [51].…”

Section: Soil Chemical Propertiesmentioning

confidence: 99%

“…Soil quality can be recognized as the capacity of a soil to function within natural or managed ecosystem to sustain plants and animal productivity, maintain or enhance water and air quality and finally support human health [1]. Soil quality could be understood through biological, chemical and physical properties of the soil and it is a function of soil management practices [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Soil quality could be understood through biological, chemical and physical properties of the soil and it is a function of soil management practices [1,2]. The spatio-temporal variation in soil quality would be as a result of differences in soil management practice which itself becomes the cultural manifestation of the people residing in certain districts.…”

Section: Introductionmentioning

confidence: 99%

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Soil Quality Variation under Enset based Conservation Tillage and Cereal based Conventional Tillage System in Southern Highlands of Ethiopia

Ketema¹

2015

APAR

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With the objectives of assessing the variation of soil quality indicators; two land use types: Enset based conservation tillage system (EBCSTS) and Cereal based conventional tillage system (CBCVTS) were selected in Gedeo zone, Bule woreda, Southern Ethiopia. A total of 48 composite and undisturbed (for bulk density determination) soil samples (2 land use types_4 blocks_3 replication_2 soil depth: 0-15 cm and 15-30 cm) were collected for laboratory analysis. The result showed that soil textural fractions (sand, p<0.001; silt, p = 0.003 and clay = p = 0.001) and soil pH (p<0.001) significantly varied with land use types. Moreover, soil moisture content (p<0.001), bulk density (p = 0.016, p = 0.002), SOC (p<0.001), TN (p<0.001) and CEC (p<0.001, p = 0.001) have shown significant variation with land use types and soil depth respectively. Sand and clay were higher in EBCSTS and CBCVTS, respectively. Higher amount of sand fraction was observed under 0-15 cm on EBCSTS and 15-30 cm on CBCVTS land use types. Lower soil bulk density (g cm -3 ) and higher amount of SOC (%), TN (%), soil pH, CEC (meq/100g soil) and SMC (%) were observed at 0-15 cm soil layer under the EBCSTS. Soil bulk density (g cm -3 ), soil pH and SMC (%) increased while SOC (%), CEC (meq/100g soil) and TN (%) decreased with soil depth in both land use types. Improvement in the soil quality under EBCSTS was due to the presence of less soil disturbance coupled with higher addition of organic matter (SOM) in the soil. Thus, through implementing EBCSTS, it is possible to protect and maintain soil qualities for sustainable soil management and cropping practices in the area.

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Land Use Effects on Soil Quality Indicators: A Case Study of Abo-Wonsho Southern Ethiopia

Cited by 75 publications

References 22 publications

Physiographic characteristics of agricultural lands and farmers’ soil fertility management practices in Wolaita zone, Southern Ethiopia

Physiographic characteristics of agricultural lands and farmers’ soil fertility management practices in Wolaita zone, Southern Ethiopia

Soil Quality Assessment for Different Land Use in the Panchase Area of Western Nepal

Soil Quality Variation under Enset based Conservation Tillage and Cereal based Conventional Tillage System in Southern Highlands of Ethiopia

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