基于时序Landsat数据的MBOMIPA野生动物管理区土地利用和土地覆盖变化识别与制图

S. Sembosi̇
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引用次数: 0

摘要

自20世纪90年代以来,MBOMIPA经历了土地利用的变化。在本研究中,利用Landsat数据评估了1997年至2021年土地利用和土地覆盖的变化。利用ArcGIS和ERDAS对卫星影像进行处理,并对土地利用和土地覆盖变化进行评价。利用最大似然法建立监督土地利用分类。研究结果表明,在24 a(1997-2021)期间,森林面积减少了约186.04 ha,年变化率为14.8%,而开放林地的327.08 ha向其他土地利用土地覆盖类型的年变化率为15.88%。林地向灌木林、草地和裸地的转化程度较高。1997年、2002年、2007年和2021年的Kappa值分别为0.90、0.90、0.83和0.93,总的监督分类准确率在1997年为91%,2002年为91%,2007年为86%,2021年为97%。本研究结果将有助于规划和实施重要的管理策略,以保护MBOMIPA野生动物管理区丰富的生物多样性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Identification and Mapping of Land Use Land Cover Variations Using Time-Series Landsat Data in MBOMIPA Wildlife Management Area
Since the 1990s, MBOMIPA has experienced changes in land use. In this study, Landsat data were used to assess land use and land cover changes from 1997 to 2021. The processing of satellite images and evaluation of variations in land use and land cover was done using ArcGIS and ERDAS. The supervised land use classification was created using a maximum likelihood method. The findings of this study assessed the area of closed forests declined by about 186.04 ha over a period of 24 years (1997–2021), with a 14.8% annual rate of change, and 327.08 ha of open woodlands had undergone a 15.88% annual rate of change to other land use land cover types. All these conversions of woodlands were highly detected to be converted to shrubland, grassland, and bare land. With Kappa values of 0.90, 0.90, 0.83, and 0.93 for 1997, 2002, 2007, and 2021, respectively, the total supervised classification accuracy was found to be 91% for 1997, 91% for 2002, 86% for 2007, and 97% for 2021. The findings of this study will be valuable in assisting to plan and carry out of significant management strategies in order to safeguard the MBOMIPA Wildlife Management Area's rich biodiversity.
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