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Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia

We conducted a quantitative assessment of forage biomass in Harshin district to determine its annual productive potential, carrying capacity, and stocking rates. The dominant Land Use and Land Cover include woodland (35.5%), shrubs (28.3%), grassland (10.6%), and bare land (25.5%). The region has br...

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Autores principales: Meshesha, Derege Tsegaye, Moahmmed, Muhyadin, Yosuf, Dahir
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6912879/
https://www.ncbi.nlm.nih.gov/pubmed/31871646
http://dx.doi.org/10.1002/ece3.5786
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author Meshesha, Derege Tsegaye
Moahmmed, Muhyadin
Yosuf, Dahir
author_facet Meshesha, Derege Tsegaye
Moahmmed, Muhyadin
Yosuf, Dahir
author_sort Meshesha, Derege Tsegaye
collection PubMed
description We conducted a quantitative assessment of forage biomass in Harshin district to determine its annual productive potential, carrying capacity, and stocking rates. The dominant Land Use and Land Cover include woodland (35.5%), shrubs (28.3%), grassland (10.6%), and bare land (25.5%). The region has browse‐rich shrubland that is edible to dromedary and goats, as well as massive grassland plains for sheep and cattle. The interannual rainfall variation is 16.5% which implies that the rangeland is a subsistence equilibrium system. The range of forage production is between 105 and 2,310 kg/ha, whereas the average productivity of the district is 742.6 kg/ha. The result indicates that the average carrying capacity of the district is 0.3 TLU ha(−1) year(−1) (4.9 ha TLU(−1) year(−1)) while the existing stocking rate is 5.4 TLU ha(−1) year(−1) (0.18 ha TLU(−1) year(−1)). This implies that the grazing intensity in the district is much higher than its carrying capacity (recommended rate), which has seen overstocking or grazing pressure excesses of 5.1 TLU/ha (7.2 cattle/ha). Thus, it clearly signals the risk of overgrazing in the district. If this trend continues, the grazing will not be sustainable and there will be shortage of forage as well as expansion of land degradation (due to overgrazing) in the near future.
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spelling pubmed-69128792019-12-23 Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia Meshesha, Derege Tsegaye Moahmmed, Muhyadin Yosuf, Dahir Ecol Evol Original Research We conducted a quantitative assessment of forage biomass in Harshin district to determine its annual productive potential, carrying capacity, and stocking rates. The dominant Land Use and Land Cover include woodland (35.5%), shrubs (28.3%), grassland (10.6%), and bare land (25.5%). The region has browse‐rich shrubland that is edible to dromedary and goats, as well as massive grassland plains for sheep and cattle. The interannual rainfall variation is 16.5% which implies that the rangeland is a subsistence equilibrium system. The range of forage production is between 105 and 2,310 kg/ha, whereas the average productivity of the district is 742.6 kg/ha. The result indicates that the average carrying capacity of the district is 0.3 TLU ha(−1) year(−1) (4.9 ha TLU(−1) year(−1)) while the existing stocking rate is 5.4 TLU ha(−1) year(−1) (0.18 ha TLU(−1) year(−1)). This implies that the grazing intensity in the district is much higher than its carrying capacity (recommended rate), which has seen overstocking or grazing pressure excesses of 5.1 TLU/ha (7.2 cattle/ha). Thus, it clearly signals the risk of overgrazing in the district. If this trend continues, the grazing will not be sustainable and there will be shortage of forage as well as expansion of land degradation (due to overgrazing) in the near future. John Wiley and Sons Inc. 2019-11-04 /pmc/articles/PMC6912879/ /pubmed/31871646 http://dx.doi.org/10.1002/ece3.5786 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Meshesha, Derege Tsegaye
Moahmmed, Muhyadin
Yosuf, Dahir
Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia
title Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia
title_full Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia
title_fullStr Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia
title_full_unstemmed Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia
title_short Estimating carrying capacity and stocking rates of rangelands in Harshin District, Eastern Somali Region, Ethiopia
title_sort estimating carrying capacity and stocking rates of rangelands in harshin district, eastern somali region, ethiopia
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6912879/
https://www.ncbi.nlm.nih.gov/pubmed/31871646
http://dx.doi.org/10.1002/ece3.5786
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