Check dams and storages beyond trapping sediment, carbon sequestration for climate change mitigation, Northwest Ethiopia
| Autor: | Mulatie Mekonnen, Solomon Addisu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:Disasters and engineering
Geography Planning and Development 0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology Management Monitoring Policy and Law Environmental Science (miscellaneous) Carbon sequestration 010502 geochemistry & geophysics 01 natural sciences Climate change Safety Risk Reliability and Quality lcsh:Environmental sciences 0105 earth and related environmental sciences lcsh:GE1-350 021110 strategic defence & security studies Soil organic matter Soil organic carbon Global warming Environmental engineering Soil and water conservation structures Sediment Soil carbon lcsh:TA495 Geotechnical Engineering and Engineering Geology Climate change mitigation chemistry Greenhouse gas Environmental science Soil conservation Carbon |
| Zdroj: | Geoenvironmental Disasters, Vol 6, Iss 1, Pp 1-8 (2019) |
| ISSN: | 2197-8670 |
| DOI: | 10.1186/s40677-019-0120-1 |
| Popis: | Background Global warming as a result of increased greenhouse gases (GHGs) concentration in the atmosphere is threating the existence of life on earth. Reducing the concentration of such gases with sequestering mechanism on the surface of the land helps to treat the problem. One of such methods is trapping carbon in the form of soil organic carbon (SOC) together with sediments, by implementing sediment trapping practices. Direct field measurements, calculations and laboratory analysis were used. Results The result shows that sediment storage dams (SSDs) sequestered/trapped ~ 60.97*103 t of sediment with the SOC content ranged from 14 to 87 g kg− 1 and check dams (CDs) trapped 7.8*103 t of sediment with the SOC content ranged from 20 to 290 g kg− 1. In general, the studied SSDs and CDs sequestered ~ 44.68*105 kg of SOC together with ~ 68.8*106 kg of sediment. In this study, SSDs and CDs were found to be important SOC sequestering practices together with sediments. Conclusions Thus, it is concluded that soil and water conservation structures can be used as carbon sequestering methods to reduce the concentration of GHGs in the atmosphere in addition to reducing soil erosion. |
| Databáze: | OpenAIRE |
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