Author/Authors :
R.F. Wright، نويسنده , , ?، نويسنده , , J. Aherne، نويسنده , , Angela K. Bishop، نويسنده , , L. Camarero، نويسنده , , B.J. Cosby، نويسنده , , M. Erlandsson c، نويسنده , , C.D. Evans، نويسنده , , M. Forsius، نويسنده , , D.W. Hardekopf h، نويسنده , , R. Helliwell i، نويسنده , , J. Hru?ka j، نويسنده , ,
A. Jenkins k، نويسنده , , J. Kop??ek l، نويسنده , , F. Moldan and P. Weslien ، نويسنده , , M. Posch، نويسنده , , By M. ROGORA، نويسنده ,
Abstract :
The MAGIC model was used to evaluate the relative sensitivity of several possible climate-induced effects on the recovery of
soil and surface water from acidification. A common protocol was used at 14 intensively studied sites in Europe and eastern North
America. The results show that several of the factors are of only minor importance (increase in pCO2 in soil air and runoff, for
example), several are important at only a few sites (seasalts at near-coastal sites, for example) and several are important at nearly all
sites (increased concentrations of organic acids in soil solution and runoff, for example). In addition changes in forest growth and
decomposition of soil organic matter are important at forested sites and sites at risk of nitrogen saturation. The trials suggest that in
future modelling of recovery from acidification should take into account possible concurrent climate changes and focus specially
on the climate-induced changes in organic acids and nitrogen retention
Keywords :
Acidification , Acid deposition , model , Freshwaters , Climate change
