Long-term 15N balance after single-dose input of 15N-labeled NH4+ and NO3- in Tieshanping N-saturated subtropical forest

The long-term observation data of nitrogen saturated subtropical forest Tieshanping, including niteogen deposition, nitrogen leaching, 15N atom% and 15N recovery with once 15N tracer applied experiment, soil net mineralization rate in Tieshanping measured in October 2019, and the ratio of nitrogen leaching to total nitrogen input of relevant control experiments in Tieshanping and Europe.It can supplement researchers' cognition on the response of subtropical forests to nitrogen deposition, and provide help for the construction of biogeochemical knowledge network of forest ecosystem.