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Land Use Evaluation over the Jema Watershed, in the Upper Blue Nile River Basin, Northwestern Highlands of Ethiopia

Author

Listed:
  • Mintesinot Taye

    (Institute of Disaster Risk Management and Food Security Studies, Bahir Dar University, Bahir Dar 5501, Ethiopia)

  • Belay Simane

    (Centre for Environment and Development Studies, Addis Ababa University, Addis Ababa 1176, Ethiopia)

  • Benjamin F. Zaitchik

    (Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218, USA)

  • Yihenew G. Selassie

    (College of Agriculture and Environmental Sciences, Bahir Dar University, Bahir Dar 5501, Ethiopia)

  • Shimelis Setegn

    (Environmental and Occupational Health, Florida International University, 11200 S.W. 8th st., Miami, FL 33199, USA)

Abstract

Generating land capability class guidelines at a watershed scale has become a priority in sustainable agricultural land use. This study analyzed the area of cultivated land use situated on the non-arable land-capability class in the Jema watershed in the Upper Blue Nile River Basin. Soil surveys, meteorological ground observations, a digital elevation model (DEM) at 30 m, Meteosat at 10 km × 10 km and Landsat at 30 m were used to generate the sample soil texture class, average annual total rainfall (ATRF in mm), terrain, slope (%), elevation (m a.s.l) and land-use land cover (%). The land capability class was analyzed by considering raster layers of terrain, the average ATRF and soil texture. Geo-statistics was employed to fit a surface of soil texture and average ATRF estimates. An overlay technique was used to compute the proportion of cultivated land placed on non-arable land. As per the results of the terrain analysis, the elevation (m a.s.l) of the watershed is in the range of 1895 to 3518 m. The slope was found to be in the range of 0 to 45%. The amount of estimated rainfall ranged from 1640 to 131 mm with value declined from the lower to the higher elevation. Clay loam, clay and heavy clay were found to be the major soil texture classes. Four land capability classes, i.e., II, III, IV (arable) and V (non-arable), were identified with proportions of 28.56%, 45.74%, 22.16% and 3.54%, respectively. Seven land-use land covers were identified, i.e., annual crop land, grazing land, bush land, bare land, settlement land, forestland and water bodies, with proportions of 42.1, 35.9, 8.90, 8.3, 2.6, 2.1, and 0.2, respectively. Around 1707.7 ha of land in the watershed is categorized under non-arable land that cannot be used for annual crop cultivation at any level of intensity. Around 437 ha (3.5%) of land was cultivated on non-arable land. To conclude, the observed unsustainable crop land use could maximize soil loss in upstream regions and siltation and flooding downstream. The annual crop land use that was observed on non-arable land needs to be replaced with perennial crops, pasture and/or forest land uses.

Suggested Citation

  • Mintesinot Taye & Belay Simane & Benjamin F. Zaitchik & Yihenew G. Selassie & Shimelis Setegn, 2019. "Land Use Evaluation over the Jema Watershed, in the Upper Blue Nile River Basin, Northwestern Highlands of Ethiopia," Land, MDPI, vol. 8(3), pages 1-16, March.
    • Handle: RePEc:gam:jlands:v:8:y:2019:i:3:p:50-:d:215253
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    References listed on IDEAS

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    1. Aklilu Amsalu & Jan Graaff, 2006. "Farmers’ Views of Soil Erosion Problems and their Conservation Knowledge at Beressa Watershed, Central Highlands of Ethiopia," Agriculture and Human Values, Springer;The Agriculture, Food, & Human Values Society (AFHVS), vol. 23(1), pages 99-108, March.
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    Cited by:

    1. Mengmeng Tang & Cuiting Wang & Chunyang Ying & Shuai Mei & Tong Tong & Youhua Ma & Qiang Wang, 2023. "Research on Cultivated Land Quality Restriction Factors Based on Cultivated Land Quality Level Evaluation," Sustainability, MDPI, vol. 15(9), pages 1-12, May.
    2. Yuanqing Li & Kaifang Shi & Yahui Wang & Qingyuan Yang, 2021. "Quantifying and Evaluating the Cultivated Areas Suitable for Fallow in Chongqing of China Using Multisource Data," Land, MDPI, vol. 10(1), pages 1-22, January.

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