Geospatial Assessment of Desert Encroachment in Dukku Local Government Area of Gombe State, Nigeria

نویسندگان

چکیده

Desertification is a major environmental hazard that the world facing today and threat in arid semi-arid regions. This research was carried out Dukku Local Government Area, Gombe State to assess rate of desert encroachment study area. The based on satellite imagery using GIS analysis. multi-temporal acquired from Land Sat images 2000TM, Landsat image ETM 2010 2020 OLI vegetation cover. NDVI (Normalised Differential Vegetation Index) shows changes growth rate, value ranges -0.722 low 0.806 high (2000); -0.150 0.665 (2010); very thin of-0.133 0.307 (2020). indicates forest cover decreases through three epochs while open space bare surface increase. recommended modern farming techniques emphasise conservation tillage as well plantation response deforestation desertification.
 
 Résume La désertification est un danger environnemental majeur auquel le monde confronté aujourd’hui et constitue une menace majeure dans les régions arides semi-arides. Cette recherche été menée la zone d’administration locale de Dukku, l’État Gombe, afin d’évaluer taux d’empiètement du désert d’étude. L’étude était basée sur l’imagerie satellitaire utilisant l’analyse SIG. Le multitemporel acquis à partir d’images couverture végétale Dukku. montre des changements croissance végétation, valeur varie -0,722 bas 0,806 élevé en -0,150 0,665 haut très mince -0,133 0,307 plus indique que couvert forestier diminue travers trois époques tandis l’espace ouvert nue augmentent. Cela recommandé agricoles modernes qui mettent l’accent travail sol ainsi forêt réponse déforestation désertification.

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ژورنال

عنوان ژورنال: Afrigist Journal of Land and Environmental Management

سال: 2022

ISSN: ['2756-410X', '2756-4096']

DOI: https://doi.org/10.54222/afrigist/ajleam/v2i1.6