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Influence of Pastoral Settlements Gradient on Vegetation Dynamics and Nutritional Characteristics in Arid Rangelands

Author

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  • Akash Jamil

    (Department of Forestry and Range Management, Bahauddin Zakariya University, Multan 66000, Pakistan)

  • Muhammad Zubair

    (Department of Forestry and Range Management, Bahauddin Zakariya University, Multan 66000, Pakistan)

  • Bryan A. Endress

    (Eastern Oregon Agriculture Research Center—Union Experiment Station, Oregon State University, La Grande, OR 97850, USA)

Abstract

An expansion of pastoral settlements in arid rangelands can increase pressure on fragile ecosystems. High stocking rates and inappropriate rangeland management can cause large, difficult-to-reverse changes in the composition and structure of rangeland ecosystems. This study aims to understand changes in vegetation composition (cover, density, biomass, richness, diversity) and nutritional characteristics of range vegetation along a gradient of increasing pastoral population in arid rangelands of Pakistan. Three sites were selected for sampling within three areas classified by their distance from settlement: Near, Away, Far (9 sites in total) belt transects (10 × 150 m). A total of 90 transects (30 each in classified sites) of size 10 × 150 m were placed at a distance of 100 m apart from each distance group. Results identified 28 species from nine plant families. We found a significant difference in vegetation characteristics along the gradient. Vegetation diversity increased along the settlement gradient, highest being in the far sites. Density, plant cover and biomass were greatest at the sites near pastoral communities and decreased as the distance from the settlements increased. Palatable species were characterized by low density and diversity near herder’s villages, but values increased as the distance from the villages increased. An increase in shrubs was observed near pastoral settlements, resulting in higher plant cover, biomass and density in these sites. This study identified anthropogenic impacts on rangeland structure and composition and found large shifts near communities. The frequent monitoring of vegetation resources is important, and the development of sustainable conservative strategies are recommended to ensure harmonious coexistence of pastoral populations in arid rangelands.

Suggested Citation

  • Akash Jamil & Muhammad Zubair & Bryan A. Endress, 2023. "Influence of Pastoral Settlements Gradient on Vegetation Dynamics and Nutritional Characteristics in Arid Rangelands," Sustainability, MDPI, vol. 15(6), pages 1-18, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:4849-:d:1091965
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    References listed on IDEAS

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    1. Wang, Yongsheng & Li, Yuheng, 2019. "Promotion of degraded land consolidation to rural poverty alleviation in the agro-pastoral transition zone of northern China," Land Use Policy, Elsevier, vol. 88(C).
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