Uncontrolled change in land use and land cover (LULC) enhances the concentrations of greenhouse gases in the atmosphere. This study, therefore, is aimed at the spatiotemporal analysis of LULC dynamics and their implications for the greenhouse gas emissions of the Adama district of Ethiopia. The dry season Landsat image Thematic Mapper (TM) of 1986, Enhanced Thematic Mapper (ETM) of 2000, and Enhanced Thematic Mapper Plus (ETM⁺) of 2014 were downloaded from the United States Geological Survey Global Visualization Viewer Website and employed. The hybrid classification approach was performed after the preprocessing of the image. Moreover, observations, key informant interviews, and focus group discussions were used. The analysis was carried out using the image data and survey data. The result indicates that agricultural land and shrub and bush lands covered 80.98%, 76.75%, and 74.42% of the study area during 1986, 2000, and 2014, respectively. Although there were differences in the magnitudes and rates of change during the considered years, the LULC classification results of this study indicated that most natural environments are converted to human‐dominated environments, which can be attributed to human‐induced activities. Due to this conversion, environmental degradation is aggravated, which again paves the way for the increased concentration of greenhouse gases in the atmosphere. The study concludes that, largely as a result of interventions from the communities living in the area, the study area is being transformed from the natural ecosystem to a managed environment. Hence, the practices of smallholder farmers with respect to protected areas, afforestation, and reforestation must be strengthened and supported by an integrated policy framework. Integr Environ Assess Manag 2019;00:1–13. © 2019 SETAC

中文翻译：

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埃塞俄比亚阿达玛区土地利用和土地覆盖动态的时空分析及其对温室气体排放的影响。

土地利用和土地覆被的不受控制的变化会增加大气中温室气体的浓度。因此，本研究旨在对LULC动力学进行时空分析及其对埃塞俄比亚阿达玛地区温室气体排放的影响。1986年的旱季Landsat影像专题地图（TM），2000年的增强型专题地图（ETM）和增强型专题地图（ETM ⁺（2014年）从美国地质调查局全球可视化查看器网站下载并使用。在图像的预处理之后执行混合分类方法。此外，还使用了观察，关键知情人访谈和焦点小组讨论。使用图像数据和调查数据进行分析。结果表明，在1986年，2000年和2014年，农业用地和灌木丛和灌木丛分别占研究面积的80.98％，76.75％和74.42％。尽管在考虑的年份中变化的幅度和变化率存在差异，但本研究的LULC分类结果表明，大多数自然环境已转换为人类主导的环境，这可归因于人类诱发的活动。由于这种转换，环境恶化加剧，这又为增加大气中温室气体的浓度铺平了道路。该研究得出的结论是，很大程度上是由于居住在该地区的社区的干预所致，研究区域正在从自然生态系统转变为可管理的环境。因此，必须在综合政策框架中加强和支持小农户在保护区，造林和再造林方面的做法。Integr环境评估管理报告2019; 00：1-13。©2019 SETAC