It should be stressed that nutrient loads are also a
major driving force, in addition to water temperatures
(Moss et al. 2003; Elliot et al. 2006; Stich & Brinker
2010). In a future climate, however, warmer summer
temperatures will not have the same impacts on discharge
as they do under current climate, because up to
90% of current Alpine glacier mass may be lost by
2100, according to future levels of greenhouse-gas
emissions. With such reductions, and the projected
seasonal shifts in precipitation towards much drier
summers (e.g., Beniston 2006), many rivers originating
in the Alps may see sharp decreases in runoff compared
to current climate (e.g., Beniston 2010). Nutrient
availability will clearly be influenced by these longterm,
sustained changes in river discharge, thus
requiring further investigations to include the influence
of nutrient availability in addition to that of temperature
discussed in the present paper.
It should be stressed that nutrient loads are also a
major driving force, in addition to water temperatures
(Moss et al. 2003; Elliot et al. 2006; Stich & Brinker
2010). In a future climate, however, warmer summer
temperatures will not have the same impacts on discharge
as they do under current climate, because up to
90% of current Alpine glacier mass may be lost by
2100, according to future levels of greenhouse-gas
emissions. With such reductions, and the projected
seasonal shifts in precipitation towards much drier
summers (e.g., Beniston 2006), many rivers originating
in the Alps may see sharp decreases in runoff compared
to current climate (e.g., Beniston 2010). Nutrient
availability will clearly be influenced by these longterm,
sustained changes in river discharge, thus
requiring further investigations to include the influence
of nutrient availability in addition to that of temperature
discussed in the present paper.
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