Contributions of ant mounds to soil carbon and nitrogen pools in a marsh wetland of Northeastern China

•Nutrient pools from ant mounds comprised from 5.3% to 7.6% of the total marsh soils.•The contributions of ant mounds on soil nutrient pools varied by ant species.•First time to address contribution of ant mound on soil pools for Chinese wetland.•Ant also influenced on soil properties under mound and among soil layers.