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<p>Soil fertility degradation is a serious challenge across various land use types in the Anjeni watershed, Northwest Ethiopia. However, land use types that effectively promote soil health have not been identified for scaling up in this region. This study assessed the effects of various land use types, including plantation forest, farmland, cultivated land, and grazing land, on selected soil physicochemical properties and microbial biomass carbon in the Anjeni watershed. A total of 80 undisturbed and 16 composite soil samples were collected at a depth of 20&#xa0;cm using a randomized complete block design with four replications. Undisturbed samples were used to determine soil bulk density and soil moisture content, while composite samples were analyzed for pH, organic matter, total nitrogen, available phosphorus, exchangeable potassium, and microbial biomass carbon. A one-way analysis of variance was conducted using SAS software version 9.4 to assess the effect of land use types on soil physicochemical properties and microbial biomass carbon at α 0.05. Additionally, Pearson’s correlation analysis was performed in R software version 4.3.2 to explore interrelationships among soil health indicators. The results revealed significant variations in soil bulk density and moisture content across land use types at α 0.05. Furthermore, soil pH, organic matter, available phosphorus, exchangeable potassium, and microbial biomass carbon exhibited statistically significant differences across land use types. Overall, plantation forest demonstrated the greatest potential for enhancing soil health, as indicated by improvements in bulk density, moisture content, pH, total nitrogen, organic matter, available phosphorus, exchangeable potassium, and microbial biomass carbon.</p>

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Effects of land use types on selected soil physicochemical properties and microbial biomass carbon in Anjeni Watershed, Northwest Ethiopia

  • 期刊论文

  • 发表日期：

    2025年12月24日

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  • Gezahegn Gashu,
  • Adamsew Marelign,
  • Masresha Ashenafi,
  • Assefa Tilahun,
  • Temesgen Mekonen,
  • Workineh Ejigu,
  • Ruth Njoroge

摘要

Soil fertility degradation is a serious challenge across various land use types in the Anjeni watershed, Northwest Ethiopia. However, land use types that effectively promote soil health have not been identified for scaling up in this region. This study assessed the effects of various land use types, including plantation forest, farmland, cultivated land, and grazing land, on selected soil physicochemical properties and microbial biomass carbon in the Anjeni watershed. A total of 80 undisturbed and 16 composite soil samples were collected at a depth of 20 cm using a randomized complete block design with four replications. Undisturbed samples were used to determine soil bulk density and soil moisture content, while composite samples were analyzed for pH, organic matter, total nitrogen, available phosphorus, exchangeable potassium, and microbial biomass carbon. A one-way analysis of variance was conducted using SAS software version 9.4 to assess the effect of land use types on soil physicochemical properties and microbial biomass carbon at α 0.05. Additionally, Pearson’s correlation analysis was performed in R software version 4.3.2 to explore interrelationships among soil health indicators. The results revealed significant variations in soil bulk density and moisture content across land use types at α 0.05. Furthermore, soil pH, organic matter, available phosphorus, exchangeable potassium, and microbial biomass carbon exhibited statistically significant differences across land use types. Overall, plantation forest demonstrated the greatest potential for enhancing soil health, as indicated by improvements in bulk density, moisture content, pH, total nitrogen, organic matter, available phosphorus, exchangeable potassium, and microbial biomass carbon.