Gweithgareddau fesul blwyddyn
Crynodeb
One of the most important physical characteristics driving lifecycle events in lakes is stratification. Already subtle variations in the timing of stratification onset and break-up (phenology) are known to have major ecological effects, mainly by determining the availability of light, nutrients, carbon and oxygen to organisms. Despite its ecological importance, historic and future global changes in stratification phenology are unknown. Here, we used a lake-climate model ensemble and long-term observational data, to investigate changes in lake stratification phenology across the Northern Hemisphere from 1901 to 2099. Under the high-greenhouse-gas-emission scenario, stratification will begin 22.0 ± 7.0 days earlier and end 11.3 ± 4.7 days later by the end of this century. It is very likely that this 33.3 ± 11.7 day prolongation in stratification will accelerate lake deoxygenation with subsequent effects on nutrient mineralization and phosphorus release from lake sediments. Further misalignment of lifecycle events, with possible irreversible changes for lake ecosystems, is also likely.
Iaith wreiddiol | Saesneg |
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Rhif yr erthygl | 2318 (2021) |
Cyfnodolyn | Nature Communications |
Cyfrol | 12 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - 19 Ebr 2021 |
Ôl bys
Gweld gwybodaeth am bynciau ymchwil 'Phenological shifts in lake stratification under climate change'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.Gweithgareddau
- 1 Arall
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Citations in IPCC report: Climate Change 2022 Impacts, Adaptations and Vulnerability
Woolway, I. (Cyfrannwr)
Chwef 2022Gweithgaredd: Arall