A global meta-analysis shows soil nitrogen pool increases after revegetation of riparian zones

Sustainable management of riparian zone soils is required to ensure the health natural ecosystems and maintenance soil nitrogen (N) pools N cycling. However, effect revegetation type age on remains poorly understood. This study compiled data from published articles understand effects types total (TN) inorganic (NH4+-N, NO3?-N) using a meta-analysis. We extracted 645 observations 52 scientific articles. The zones led significant increase TN (mean size: 11.5%; 95% CI: 3.1% 20.6%). Woodland increased significantly by 14.0%, which was associated with presence fixing species high litter inputs. Soil NH4+-N concentration 20.1%; 15.1% 25.4%), whereas decrease in NO3?-N ? 21.5%; 15.0% 27.5%) observed. Of considered this paper, followed order: grassland < shrubland woodland, suggesting that woodland might be more efficient retention than grassland. plant uptake accelerated leaching could related decreased compared other types. Revegetation moisture 7.9%; 3.3% 12.2%) control, selection exotic as dominant vegetation zone. ages between 10 40 years following organic carbon inputs within those establishment. provides insight into influence different moisture. also highlights importance TN.