Effect of soil amendments on soil respiration in the midland agroecological environment, Ethiopia

The effects of soil amendments on soil respiration (SR) rate have not yet been fully evaluated. In the Upper Blue Nile Basin, Ethiopia, we investigated seasonal variations in SR rates between and within soil amendments. We set up 24 plots with 8 treatments—polyacrylamide (PAM), gypsum (G), biochar (...

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Veröffentlicht in:	Environmental earth sciences 2024-04, Vol.83 (7), p.216-216, Article 216
Hauptverfasser:	Fekadu, Genetu, Adgo, Enyew, Meshesha, Derege Tsegaye, Tsunekawa, Atsushi, Haregeweyn, Nigussie, Peng, Fei, Tsubo, Mitsuru, Mulualem, Temesgen, Demissie, Simeneh, Kebede, Birhanu, Tiruneh, Gizachew Ayalew
Format:	Artikel
Sprache:	eng
Schlagworte:	agroecology basins biochar Biogeosciences Carbon capture and storage Carbon dioxide Carbon sequestration Charcoal clay fraction Clay soils Dry season Earth and Environmental Science Earth Sciences Environmental Science and Engineering Ethiopia Geochemistry Geology Gypsum Hydrology/Water Resources Organic carbon Organic soils Original Article Polyacrylamide Rainy season Respiration Seasonal variation Seasonal variations Soil amendment Soil chemistry Soil moisture soil organic carbon Soil pH Soil properties Soil respiration Soil temperature soil water t-test Terrestrial Pollution total nitrogen Variance analysis
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Zusammenfassung:	The effects of soil amendments on soil respiration (SR) rate have not yet been fully evaluated. In the Upper Blue Nile Basin, Ethiopia, we investigated seasonal variations in SR rates between and within soil amendments. We set up 24 plots with 8 treatments—polyacrylamide (PAM), gypsum (G), biochar (B), lime (L), control (C), PAM + L, PAM + G, and PAM + B—in 3 replicates. Soil temperature, moisture, and SR data were collected monthly. Data were evaluated by paired t -test and nonparametric repeated-measures ANOVA. The SR rates were significantly lower ( P
ISSN:	1866-6280 1866-6299
DOI:	10.1007/s12665-024-11522-4