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1.
Heliyon ; 9(6): e16884, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37332973

RESUMO

This study investigates Abold's role in resolving conflict by using qualitative and survey data. Thematic analysis was applied for the analysis of qualitative data and descriptive statistics were applied to analyze the survey data. It was found that the kin council, the spirit mediumship, and religious leaders are involved in conflict resolution. The responsibilities of the kin council, the spirit mediumship and religious leaders are undertaking the overall conflict resolution process, truth-finding and swearing of an oath to realize the reconciliation, respectively. Aboled has not only engaged in settling conflicts but also in conflict prevention and restoration of harmony. In the past four decades, its role, however, had been weakened despite being revived in the past five years due to people's trust lost in the formal conflict resolution system. Disregarding by the government, the erosion of the culture of elders' respect, the decline of witchcraft worshiping and the descent of elders' personalities are the significant challenges to the continuation of Aboled. Thus, the government should provide support to improve its conflict-resolving capacity.

2.
Environ Monit Assess ; 195(6): 643, 2023 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-37147387

RESUMO

This study aims to examine the physicochemical variables that influence macroinvertebrate assemblages in wetlands of the Fetam River watershed. Macroinvertebrates and water quality samples were collected from 20 sampling stations across four wetlands between February and May 2022. Principal component analysis (PCA) was used to elucidate the physicochemical gradients among datasets and canonical correspondence analysis (CCA) was applied to explore the relationship between taxon assemblages and physicochemical variables. Aquatic insects such as Dytiscidae (Coleoptera), Chironomidae (Diptera), and Coenagrionidae (Odonata) were the most abundant families, and they comprised 20-80% of the macroinvertebrate communities. As demonstrated by cluster analysis, three site groups including slightly disturbed (SD), moderately disturbed (MD), and heavily disturbed (HD) sites were identified. PCA showed a clear separation of slightly disturbed sites from moderately and highly impacted sites. Differences in physicochemical variables, taxon richness and abundance, and Margalef diversity indices were observed along the SD to HD gradient. Phosphate concentration was an important predictor that influenced richness and diversity. The extracted two CCA axes of physicochemical variables accounted for 44% of the variability in macroinvertebrate assemblages. Nutrient concentration (nitrate, phosphate, and total phosphorus), conductivity, and turbidity were the main drivers of this variation. This suggested the need for sustainable wetland management intervention at the watershed level, ultimately benefiting invertebrate biodiversity.


Assuntos
Monitoramento Ambiental , Áreas Alagadas , Humanos , Animais , Etiópia , Invertebrados , Biodiversidade , Rios , Ecossistema
3.
Environ Monit Assess ; 194(11): 838, 2022 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-36169751

RESUMO

Although the land use/land cover (LULC) of inland wetlands has been dynamic over the last 100 years, the extent of their LULC dynamics and its driving forces are poorly understood particularly in Ethiopia. Thus, this study analyzed spatiotemporal dynamics of four (Alefa, Chakun, Denbun, Kotilan) wetlands LULC and its driving forces in the Bure and Wonmbera Woredas, Upper Blue Nile Basin, Ethiopia for the period from 1985 to 2020. The Landsat images downloaded from Google Earth Engine were used to analyze the LULC of four wetland watersheds. These images were classified into 7 classes by using the maximum likelihood algorithm in ArcGIS 4. Besides, a survey of 347 households, 4 focus group discussions, and 12 key informant interviews and transect walks were used to generate the data on the drivers of wetland changes. The LULC analysis showed that the four wetlands area in 1985, 2002, and 2020 occupied 6027 ha, 5203 ha, and 4348 ha, respectively, which indicated that the areas of wetlands have declined by 1679 ha or 27.9% in the past 35 years, with an average annual decrease rate of 48.4 hectares. Wetlands were lost at a higher rate (16.4%) from 2002 to 2020. The cultivated land expansion has taken a substantial share (67.9%) of wetlands' decline. The expansion of cultivated land due to an increase of rural households along with a lack of alternative livelihoods resulted in the conversion of wetlands to cultivated land. Gully erosion and sediment deposits due to wetlands buffer degradation, overgrazing, and change in crop production driven by market opportunities have exacerbated the wetlands loss. Thus, interventions such as the promotion of alternative livelihood activities, stall livestock feeding or zero-grazing, and non-conventional livestock feeds are needed to curb wetland degradation. Delineation of buffer zone and protection of shrubland or woodlands found in buffer areas of the wetlands are needed as well for the sustainability of wetlands.


Assuntos
Conservação dos Recursos Naturais , Áreas Alagadas , Monitoramento Ambiental/métodos , Etiópia , Florestas
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