Nitrogen deposition in forests: Statistical modeling of total deposition from throughfall loads

Introduction Nitrogen (N) gradient studies in some cases use N deposition throughfall as measure of to forests. For evaluating critical loads N, however, information on total is required, i.e., the sum estimates dry, wet and occult deposition. Methods The present paper collects a number Europe where were compared different forest types. From this dataset function was derived which allows estimate from Results At low values, proportion canopy uptake high thus underestimation by needs be corrected. values > 20 kg ha –1 yr getting less important. Conclusion This work shows that clearly underestimates nitrogen. With data set covering large parts it possible derive load using data.