County Roscommon recorded the second highest level of afforestation in Ireland last year.
A total of 190 hectares of land was newly planted with trees - almost twice the figure of County Leitrim.
For the first time ever, the Central Statistics Office has published research on the amount of land newly planted across the country.
Cork accounted for 17% of the total afforested area in 2021 followed by Roscommon at 9.4% Clare at 8.6% and Cavan at 7.9%.
98 hectares were afforested in County Leitrim last year which represented 4.8% of the national total and the 70 hectares planted in County Longford also represented 3.4% of the national total.
The figures for Leitrim highlight a dramatic decline in newly planted forestry in the county in the last five years after a high of 536 hectares planted in the county in I 2017.
Roscommon's highest afforestation figure in the last decade was 449 hectares planted in 2014 and in Longford its highest afforestation total was in 2016 at 272 hectares
The share of afforested area planted by farmers in 2021 was 18% which was a sharp decline from their 2014 share of 97%.
Alder and Ash were the main broadleaf species planted during 2007 to 2013 while Alder and Birch were the main species from 2015 to 2021. Sitka Spruce is the dominant conifer species and comprised 86% of coniferous species in 2021.
Broadleaf species comprised 41% of 2021 afforestation area and the average afforestation parcel in 2021 was 7.1 hectares.
