{"title":"埃塞俄比亚北部Aykoleba地区土地利用和土地覆盖(LULC)动态和当地人看法的研究","authors":"M. Mehari, Maryo Melesse, L. Jianhua","doi":"10.5897/ajest2021.3022","DOIUrl":null,"url":null,"abstract":"It is believed that since the advent of agriculture, changes in LULC have happened. However, rates, extents, and intensities of LULC changes have become more aggravated at all levels. The current study aims to examine the dynamics and perceptions of LULC change in the last 4 decades (1973–2013) in Aykoleba, Ethiopia using a combination of remote sensing data and the ground truth data. Focus Group Discussions were employed to obtain data on the status of land degradation. Remote sensing data were obtained using Landsat imageries of MSS (1973), Landsat TM, 1986 and 2000, and Landsat ETM ? (2013) with 30 m spatial resolution. ArcGIS10.2 and ERDAS Imagine13.1 were used to generate LULC classes. Accordingly, four LULC classes were identified, of which forest and bare LULC have been augmented by 8.8% and 54.9%, respectively. The escalation in forest cover is associated with the plantation of eucalyptus near the home gardens, farmlands, and degraded areas. Nevertheless, open bush and grassland, and cultivated and settlement land cover classes were lessened by 27.4% and 37.8%, respectively, although the increase in bare land is related to the abandonment of the cultivated land in hilly and sloppy areas, and overgrazing, among other factors. The local community perceived that population pressure is a top driver of LULC change in the study area. Overgrazing and lack of appropriate land use policy are also significant causes of change. Thus, we recommend the establishment of the land use plan and appropriate population policy in Ethiopia.","PeriodicalId":7483,"journal":{"name":"African Journal of Environmental Science and Technology","volume":"26 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"The study of land use and land cover (LULC) dynamics and the perception of local people in Aykoleba, Northern Ethiopia\",\"authors\":\"M. Mehari, Maryo Melesse, L. Jianhua\",\"doi\":\"10.5897/ajest2021.3022\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"It is believed that since the advent of agriculture, changes in LULC have happened. However, rates, extents, and intensities of LULC changes have become more aggravated at all levels. The current study aims to examine the dynamics and perceptions of LULC change in the last 4 decades (1973–2013) in Aykoleba, Ethiopia using a combination of remote sensing data and the ground truth data. Focus Group Discussions were employed to obtain data on the status of land degradation. Remote sensing data were obtained using Landsat imageries of MSS (1973), Landsat TM, 1986 and 2000, and Landsat ETM ? (2013) with 30 m spatial resolution. ArcGIS10.2 and ERDAS Imagine13.1 were used to generate LULC classes. Accordingly, four LULC classes were identified, of which forest and bare LULC have been augmented by 8.8% and 54.9%, respectively. The escalation in forest cover is associated with the plantation of eucalyptus near the home gardens, farmlands, and degraded areas. Nevertheless, open bush and grassland, and cultivated and settlement land cover classes were lessened by 27.4% and 37.8%, respectively, although the increase in bare land is related to the abandonment of the cultivated land in hilly and sloppy areas, and overgrazing, among other factors. The local community perceived that population pressure is a top driver of LULC change in the study area. Overgrazing and lack of appropriate land use policy are also significant causes of change. Thus, we recommend the establishment of the land use plan and appropriate population policy in Ethiopia.\",\"PeriodicalId\":7483,\"journal\":{\"name\":\"African Journal of Environmental Science and Technology\",\"volume\":\"26 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"African Journal of Environmental Science and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5897/ajest2021.3022\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"African Journal of Environmental Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5897/ajest2021.3022","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The study of land use and land cover (LULC) dynamics and the perception of local people in Aykoleba, Northern Ethiopia
It is believed that since the advent of agriculture, changes in LULC have happened. However, rates, extents, and intensities of LULC changes have become more aggravated at all levels. The current study aims to examine the dynamics and perceptions of LULC change in the last 4 decades (1973–2013) in Aykoleba, Ethiopia using a combination of remote sensing data and the ground truth data. Focus Group Discussions were employed to obtain data on the status of land degradation. Remote sensing data were obtained using Landsat imageries of MSS (1973), Landsat TM, 1986 and 2000, and Landsat ETM ? (2013) with 30 m spatial resolution. ArcGIS10.2 and ERDAS Imagine13.1 were used to generate LULC classes. Accordingly, four LULC classes were identified, of which forest and bare LULC have been augmented by 8.8% and 54.9%, respectively. The escalation in forest cover is associated with the plantation of eucalyptus near the home gardens, farmlands, and degraded areas. Nevertheless, open bush and grassland, and cultivated and settlement land cover classes were lessened by 27.4% and 37.8%, respectively, although the increase in bare land is related to the abandonment of the cultivated land in hilly and sloppy areas, and overgrazing, among other factors. The local community perceived that population pressure is a top driver of LULC change in the study area. Overgrazing and lack of appropriate land use policy are also significant causes of change. Thus, we recommend the establishment of the land use plan and appropriate population policy in Ethiopia.