Projected responses of ecosystem processes are uncertain in part due to complex interactions of climate change with soil respiration, plant nutrient availability  and changing fire regimes  . For aquatic biota, responses will reflect seasonal differences in water temperature  and changes in rainfall intensity, productivity and biodiversity . Extreme floods may have negative impacts on New Zealand river biota, by mobilising nutrients, sediments and toxic chemicals and aiding the dispersal of invasive species. These effects are compounded by homogenisation of rivers through channelisation .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report