Chemotaxonomic patterns of vegetation and soils along altitudinal transects of the Bale Mountains, Ethiopia, and implications for paleovegetation reconstructions – Part II: lignin-derived phenols and leaf-wax-derived n-alkanes
Bruk Lemma,Betelhem Mekonnen,Bruno Glaser,Wolfgang Zech,Sileshi Nemomissa,Tamrat Bekele,Lucas Bittner,and Michael Zech
Institute of Agronomy and Nutritional Sciences, Soil
Biogeochemistry, Martin Luther University Halle-Wittenberg,
Von-Seckendorff-Platz 3, 06120, Halle, Germany
Forest and Rangeland Biodiversity Directorate, Ethiopian Biodiversity Institute,
P.O. Box 30726, Addis Ababa, Ethiopia
Betelhem Mekonnen
Institute of Agronomy and Nutritional Sciences, Soil
Biogeochemistry, Martin Luther University Halle-Wittenberg,
Von-Seckendorff-Platz 3, 06120, Halle, Germany
Department of Urban Agriculture, Misrak Polytechnic College, P.O. Box
785, Addis Ababa, Ethiopia
Bruno Glaser
Institute of Agronomy and Nutritional Sciences, Soil
Biogeochemistry, Martin Luther University Halle-Wittenberg,
Von-Seckendorff-Platz 3, 06120, Halle, Germany
Wolfgang Zech
Institute of Soil Science and Soil Geography, University of
Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany
Sileshi Nemomissa
Department of Plant Biology and Biodiversity Management, Addis Ababa
University, P.O. Box 3434, Addis Ababa, Ethiopia
Tamrat Bekele
Department of Plant Biology and Biodiversity Management, Addis Ababa
University, P.O. Box 3434, Addis Ababa, Ethiopia
Institute of Agronomy and Nutritional Sciences, Soil
Biogeochemistry, Martin Luther University Halle-Wittenberg,
Von-Seckendorff-Platz 3, 06120, Halle, Germany
Michael Zech
Institute of Agronomy and Nutritional Sciences, Soil
Biogeochemistry, Martin Luther University Halle-Wittenberg,
Von-Seckendorff-Platz 3, 06120, Halle, Germany
Institute of Geography, Technical University of Dresden,
Helmholtzstrasse 10, 01062, Dresden, Germany
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Chemotaxonomic identification of keystone plant species in the Bale Mountains are possible using lignin phenols. However, Erica could not be differentiated chemotaxonomically from all other investigated plants using n-alkanes. Unambiguous characteristic patterns of lignin phenols reflected in the plant samples were not sustained in the organic layers and mineral topsoils. This is due to degradation and organic matter inputs by roots. Therefore, the past extent of Erica is still speculative.
Chemotaxonomic identification of keystone plant species in the Bale Mountains are possible using...
