Files that were used in Justine et al.'s manuscript (2023), entitled ‘Lawns and meadows in urban green space - A comparison from perspectives of greenhouse gas, drought resilience and plant functional types’. CO2, CH4 and N2O fluxes, C/N content in soil and plant diversity were measured in urban grasslands around Helsinki Metropolitan Area. At four of the study sites including a mesic meadow, a dry meadow, an irrigated lawn and a non-irrigated lawn, total ecosystem respiration, GPP, green cover and plant diversity were intensively recorded (about every two weeks from May-November) from 2021-2022. Twelve other sites (6 control lawns and 6 meadows) belonging to the Lawns into Meadows experiment were studied from 2020-2022, they also provide crucial data (respiration, CH4 and N2O and plant functional type proportions) about conversion from a lawn into a meadow. Compared to the previous dataset, some changes were made: - 00_READ_ME: descriptions were improved and figures/tables updated - 01_COCARBON_Flux_data: gas slope and NMRSE were added - 02_LIM_Flux_data: gas slope and NMRSE were added - ex-07_LIM_Plants&flux: discarded because of redundancy (in addition, one tree proportion value was missing) - 08_Soil_CN_data: added to the folder - 09_various_soil_characteristics: added to the folder

2023