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Grasses in Semi-Arid Lowlands—Community Composition and Spatial Dynamics with Special Regard to the Influence of Edaphic Factors

Author

Listed:
  • Muhammad Waheed

    (Department of Botany, University of Okara, Okara 56300, Pakistan)

  • Shiekh Marifatul Haq

    (Department of Ethnobotany, Institute of Botany, Ilia State University, 0105 Tbilisi, Georgia)

  • Fahim Arshad

    (Department of Botany, University of Okara, Okara 56300, Pakistan)

  • Rainer W. Bussmann

    (Department of Ethnobotany, Institute of Botany, Ilia State University, 0105 Tbilisi, Georgia
    State Museum of Natural History, Erbprinzenstrasse 13, 76133 Karlsruhe, Germany)

  • Muhammad Iqbal

    (Department of Botany, University of Okara, Okara 56300, Pakistan)

  • Najat A. Bukhari

    (Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia)

  • Ashraf Atef Hatamleh

    (Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia)

Abstract

Edaphic properties have been widely shown to influence community composition and distribution. However, the degree to which edaphic factors can affect grasses in semi-arid lowlands is still little researched. We assessed the significance of nine edaphic factors to explain the distributions of 65 grass species with various ecological traits (i.e., the ecological indicator values for their preferred habitat) in the semi-arid lowlands of Pakistan. To record information on species composition and related ecological conditions, we selected 10 random sampling locations between 2020 and 2021. For each species, we determined the important value index (IVI) and looked at the primary indicator species that were identified using the indicator species analysis approach. The major genera were Setaria , Brachiaria , and Cenchrus with 6.15% species in each followed by Aristida, Panicum , and Eragrostis with 4.61% wild grass species, Bothriochloa , Bromus , Phragmites , Polypogon , Saccharum , Poa , Echinochloa , and Dactyloctenium with 3.07% species, whereas other genera had a single species each. In total, 80% of the species were native, while only 20% were introduced species. Microphylls accounted for 49.23% of the leaf size spectra of the grass flora in the study area. The other frequent traits included macrophylls (21.53%), nanophylls (20%), and leptophylls (9.23%). The major life forms were therophytes (56.92%) followed by hemicryptophytes (38.46%) and geophytes (4.61%). The results of an ordination analysis indicated that the distribution of grasses was significantly ( p ≤ 0.002) influenced by several edaphic parameters, with pH having the greatest impact on species distribution. The analyses of indicator species showed that pH and EC were the most powerful and important edaphic factors for determining the composition of plant communities and indicator species. The significant indicator species in various ecosystems were Cynodon dactylon (L.) Pers. rainer.bussmann@smnk.de and Leptochloa chinensis (L.) Nees (agroecosystem), Brachiaria reptans (L.) C.A. Gardner and C.E. Hubb, Dichanthium annulatum (Forssk.) Stapf, and Saccharum spontaneum L. (forest ecosystem), Cenchrus biflorus Roxb., Cenchrus ciliaris L., and Desmostachya bipinnata (L.) Stapf (urban ecosystem), Arundo donax L., Echinochloa crus-galli , and Phragmites australis (wetland ecosystem), and Saccharum spontaneum and Echinochloa crus-galli (L.) P. Beauv. (riparian ecosystem). We discovered that different species groupings had different habitat preferences and that soil pH had a significant beneficial effect on plant variety. These results provide a scientific roadmap for soil and plant restoration in semi-arid lowland habitats.

Suggested Citation

  • Muhammad Waheed & Shiekh Marifatul Haq & Fahim Arshad & Rainer W. Bussmann & Muhammad Iqbal & Najat A. Bukhari & Ashraf Atef Hatamleh, 2022. "Grasses in Semi-Arid Lowlands—Community Composition and Spatial Dynamics with Special Regard to the Influence of Edaphic Factors," Sustainability, MDPI, vol. 14(22), pages 1-17, November.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:22:p:14964-:d:970578
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    References listed on IDEAS

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    1. Fahim Arshad & Muhammad Waheed & Kaneez Fatima & Nidaa Harun & Muhammad Iqbal & Kaniz Fatima & Shaheena Umbreen, 2022. "Predicting the Suitable Current and Future Potential Distribution of the Native Endangered Tree Tecomella undulata (Sm.) Seem. in Pakistan," Sustainability, MDPI, vol. 14(12), pages 1-10, June.
    2. Muhammad Majeed & Aqil Tariq & Sheikh Marifatul Haq & Muhammad Waheed & Muhammad Mushahid Anwar & Qingting Li & Muhammad Aslam & Sanaullah Abbasi & B. G. Mousa & Ahsan Jamil, 2022. "A Detailed Ecological Exploration of the Distribution Patterns of Wild Poaceae from the Jhelum District (Punjab), Pakistan," Sustainability, MDPI, vol. 14(7), pages 1-17, March.
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    1. Muhammad Waheed & Shiekh Marifatul Haq & Fahim Arshad & Muhammad Azhar Jameel & Manzer H. Siddiqui & Rainer W. Bussmann & Nabeel Manshoor & Saud Alamri, 2023. "Where Will Threatened Aegle marmelos L., a Tree of the Semi-Arid Region, Go under Climate Change? Implications for the Reintroduction of the Species," Land, MDPI, vol. 12(7), pages 1-19, July.

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