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Unveiling undercover cropland inside forests using landscape variables: a supplement to remote sensing image classification

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Ayanu, Yohannes ; Conrad, Christopher ; Jentsch, Anke ; Koellner, Thomas:
Unveiling undercover cropland inside forests using landscape variables: a supplement to remote sensing image classification.
In: PLoS One. Bd. 10 (2015) Heft 6 . - e0130079.
ISSN 1932-6203
DOI: 10.1371/journal.pone.0130079

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Abstract

The worldwide demand for food has been increasing due to the rapidly growing global population, and agricultural lands have increased in extent to produce more food crops. The pattern of cropland varies among different regions depending on the traditional knowledge of farmers and availability of uncultivated land. Satellite images can be used to map cropland in open areas but have limitations for detecting undergrowth inside forests. Classification results are often biased and need to be supplemented with field observations. Undercover cropland inside forests in the Bale Mountains of Ethiopia was assessed using field observed percentage cover of land use/land cover classes, and topographic and location parameters. The most influential factors were identified using Boosted Regression Trees and used to map undercover cropland area. Elevation, slope, easterly aspect, distance to settlements, and distance to national park were found to be the most influential factors determining undercover cropland area. When there is very high demand for growing food crops, constrained under restricted rights for clearing forest, cultivation could take place within forests as an undercover. Further research on the impact of undercover cropland on ecosystem services and challenges in sustainable management is thus essential.

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Publikationsform: Artikel in einer Zeitschrift
Zusätzliche Informationen (öffentlich sichtbar): Correction in: PLoS One Bd. 10 (2015) 8, e0137150
Keywords: Forests; trees; ecosystemes; agroforests; forest ecology; Etiopia; remote sensing; wheat
DOI der Veröffentlichung: 10.1371/journal.pone.0130079
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Ecological Services > Professur Ecological Services - Univ.-Prof. Dr. Thomas Köllner
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Ecological Services
Sprache: Englisch
Titel an der UBT entstanden: Ja
Eingestellt am: 15 Mrz 2017 10:10
Letzte Änderung: 15 Mrz 2017 10:10
URI: https://epub.uni-bayreuth.de/id/eprint/3090