Summary (Accounting for canopy drip effects of spatiotemporal trends of the concentration of N in mosses, astompheric N depositions and critical load exceedances : a case study from North-Western Germany).

Summary
Accounting for  canopy drip effects of spatiotemporal trends of the concentration of N in mosses, astompheric N depositions and critical load exceedances : a case study from North-Western Germany.

Name of Journal	Title of Journal	Year of Published	Research Methode	Main Idea	Summary	Suggestion
Accounting for canopy	Accounting for canopy drip effects of spatiotemporal trends of the concentrations of N in mosses, atmospheric N depositions and critical load exceedances: a case study from North-Western Germany	2013	It used quantitative method and combined by statistic analisys  and chemical analysis.	Atmospheric nitrogen (N) deposition into terrestrial ecosystems is frequently considered as a threat to phyto-diversity. In previous investigations, the atmospheric N inputs enriched in mosses were recorded in 2004 as part of a regional investigation at 54 locations in north-west Germany and in 2005 at 726 locations across the whole country. This article deals with a study conducted in 2012 comparing N concentrations in mosses sampled within 30 forest stands and in 26 adjacent open fields in north-west Germany. The N concentration in mosses were determined and, by the use of a regression model, converted to N atmospheric deposition values. These deposition estimations enabled to calculate N critical load exceedances.	Accounting for canopy drip effects of spatiotemporal trends of the concentrations of N in mosses in order to check for significant differences between open fields and forest stands, as a first step, the N concentration in mosses given in (%) was logarithmised due to a rightskewed distribution. For comparing N deposition calculated from the N concentration in mosses with modelled total deposition calculated by [23] and critical load values for N given by [26,29], the N concentration in mosses was additionally transferred into atmospheric N deposition rates (kg/ha*a).	atmospheric N depositions (Natm). Additionally included are grid cell number (see Figure 6), sampling point (open field, forest stand), latitude and longitude (Gauß-Krüger coordinate system) and administrative district where the respective sampling point is located.