Datasets consist of monitoring data on ecosystem properties (17 variables) and biodiversity (21 variables), collected between 2003 and 2019 from the tropical peatland of the Natural Laboratory of Peat-swamp Forest special research zone in Sebangau National Park, Central Kalimantan, Indonesia. The dataset includes 23 data files. These data files represent results from comparisons of ecosystem property and biodiversity variables over space between new burn, old burn and unburned forest conditions, including: (a) effect sizes resulting from a hierarchical mixed effects meta-analysis; and (b) proportional changes resulting from a generalized linear mixed-effects model. They also include datasets relating to variability ecosystem property and biodiversity variables over time in relation to fire incidence within the wider landscape, including (c) time-series data for ecosystem properties aggregated by site and season, and occupancy detection matrices biodiversity for biodiversity variables; and (d) species richness and abundance estimates aggregated at the site level.