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首页> 外文期刊>Global journal of environmental sciences >ASSESSMENT OF HUMAN IMPACTS ON LANDUSE AND VEGETATION COVER CHANGES IN MUBI REGION, ADAMAWA STATE, NIGERIA; REMOTE SENSING AND GIS APPROACH
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ASSESSMENT OF HUMAN IMPACTS ON LANDUSE AND VEGETATION COVER CHANGES IN MUBI REGION, ADAMAWA STATE, NIGERIA; REMOTE SENSING AND GIS APPROACH

机译：评估尼日利亚阿马瓦州穆比地区人类对土地利用和植被覆盖变化的影响；遥感和GIS方法

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This paper is an assessment of the impact of man's activities on the landuse and vegetation cover of Mubi region. Landsat MSS Land use/vegetation image of 1978 and Spot XS landuse/vegetation image of 1995 were used to study the landuse/vegetation cover changes of the region between 1978 and 1995 - a period of 17 years. Ilwis 3.2a, Arcview 3.1 and Idrisi 32 were used for georeferencing, digitizing and map analysis respectively. The methods used for change detection include area calculations (trends, rates and proportion), and overlay for the nature and the location of the changes. The study revealed that 68.08% of the region's land areas were put under man's use in 1978, the percentage increased to 74.82% in 1995.Woodlands, the only natural vegetation cover was also found to decrease from 31.12% in 1978 to 21.60% in 1995. Land degradation was evidenced within the period because 3.58% of the land area has turned into rock outcrops as a result of natural and human activities. For instance 21.27% of the extensive/grazing agriculture land area in 1978 has turned into rock outcrop in 1995. Extensive agriculture, animal grazing, intensive agriculture and irrigation farming collectively reduced 34.10% of the woodlands area between 1978 and 1995. Finally, extensive agriculture, animal grazing, intensive agriculture, tree crop farming and irrigation agriculture were found to be the direct human activities affecting landuse and vegetal changes in the region, while woodcutting, bush burning and road construction were also found to be other possible factors.
机译：本文评估了人类活动对穆比地区土地利用和植被覆盖的影响。 Landsat MSS 1978年的土地利用/植被图像和1995年Spot XS土地利用/植被图像被用来研究1978年至1995年间该地区的土地利用/植被覆盖度的变化，为期17年。 Ilwis 3.2a，Arcview 3.1和Idrisi 32分别用于地理配准，数字化和地图分析。用于变化检测的方法包括面积计算（趋势，比率和比例），以及变化性质和位置的叠加。研究表明，1978年该地区的土地面积为68.08％，供人类使用，这一比例在1995年增加到74.82％;仅自然植被覆盖的林地也从1978年的31.12％下降到1995年的21.60％。 。在此期间内，土地退化得到了证明，因为自然和人类活动导致3.58％的土地面积变成了岩石露头。例如，1978年的22.17％的广泛/放牧农业土地面积在1995年变成了岩石露头。1978年至1995年之间，广泛的农业，动物放牧，集约农业和灌溉农业共减少了林地面积的34.10％。最后，广泛的农业人们发现，动物放牧，集约化农业，林木种植和灌溉农业是影响该地区土地利用和植被变化的直接人类活动，而木刻，灌木丛焚烧和道路建设也是其他可能的因素。

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