Phenological Shifts Drive Rhizosphere Microbial Community Dynamics in Subtropical Woody Bamboo (Chimonobambusa utilis (Keng) P. C. Keng)): pH and Total Phosphorus as Main Drivers

Rhizosphere, Journal Year: 2025, Volume and Issue: unknown, P. 101072 - 101072

Published: April 1, 2025

Language: Английский

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Higher soil nitrous oxide production in landscape depressions linked to soil and hydrological legacy effects

Frontiers in Soil Science, Journal Year: 2025, Volume and Issue: 5

Published: May 9, 2025

Background and aims Eastern Denmark’s agricultural landscapes feature numerous topographic depressions that are frequently flooded during late winter spring. These poorly drained, carbon- nitrogen-rich depression soils receive eroded material from adjacent slopes. Fertilization water saturation create N 2 O emission hotspots. However, the potential legacy effects of these locations on microbial communities involved in production reduction remain unclear. One approach to mitigating high denitrification rates (as a source O) is alter pathways by adding nonhazardous levels copper. Methods We conducted an incubation study using upland same site, incorporating varying Cu (0, 130, 260 mM) (60% 90% holding capacity). Results Depression emitted eight times more than at WHC. addition did not reduce cumulative emissions but delayed or lowered flux peak. exhibited 3,000- 4,000-fold higher 16S rRNA nosZ clade I abundances, respectively, compared soils. significantly decreased abundance, eliminated AOB amoA soils, slightly reduced tested gene abundances The community structure differed between two Conclusions Overall, our suggests erosional differentiation soil properties, together with frequent waterlogging conditions, can result distinct communities, fostering lead differences Adding intensively managed unlikely be effective strategy for hotspots arable fields.

Language: Английский

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Effects of erosion on macroaggregation, aggregate associated organic carbon sources and compositions in a Mollisol agricultural landscape

CATENA, Journal Year: 2024, Volume and Issue: 240, P. 107994 - 107994

Published: March 28, 2024

Language: Английский

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Key microbial taxa play essential roles in maintaining soil muti-nutrient cycling following an extreme drought event in ecological buffer zones along the Yangtze River

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Sept. 4, 2024

Climatic extremes, especially extreme droughts, are occurring more frequently and profoundly impacting biogeochemical processes. However, the relative importance of microbial communities on soil nutrient cycling community maintenance under natural drought events remains elusive. During a record-breaking in Yangtze River Basin (YRB) summer 2022, we collected ambient soils drought-affected bare vegetated ecological buffer zones from two sites with similar vegetation characteristics along YRB, examined contribution bacterial supporting multi-nutrient index (MNCI) involving carbon-, nitrate- phosphorus-cycling their associations network. Extreme decreased (

Language: Английский

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