| Global sampling of plant roots expands the described molecular diversity of arbuscular mycorrhizal fungi M Öpik, M Zobel, JJ Cantero, J Davison, JM Facelli, I Hiiesalu, T Jairus, ... Mycorrhiza 23, 411-430, 2013 | 387 | 2013 |
| European red list of habitats part 2. Terrestrial and freshwater habitats JAM Janssen, JS Rodwell, M García Criado, S Gubbay, T Haynes, A Nieto, ... European Union, 2016 | 373 | 2016 |
| Eesti taimkatte kasvukohatüüpide klassifikatsioon J Paal Keskkonnaministeeriumi Info-ja Tehnokeskus, 1997 | 156 | 1997 |
| Vegetation classification and biogeography of European floodplain forests and alder carrs. J Douda, K Boublík, M Slezák, I Biurrun, J Nociar, A Havrdová, J Doudová, ... Applied Vegetation Science 19 (1), 147-163, 2016 | 151 | 2016 |
| Diversity of bryophyte vegetation in some forest types in Estonia: a comparison of old unmanaged and managed forests K Vellak, J Paal Biodiversity & Conservation 8, 1595-1620, 1999 | 140 | 1999 |
| Rare and threatened plant communitiesof Estonia J Paal Biodiversity & Conservation 7, 1027-1049, 1998 | 131 | 1998 |
| Epiphytic and epixylic lichen species diversity in Estonian natural forests I Jüriado, J Paal, J Liira Biodiversity & Conservation 12, 1587-1607, 2003 | 122 | 2003 |
| Tree and stand level variables influencing diversity of lichens on temperate broad-leaved trees in boreo-nemoral floodplain forests I Jüriado, J Liira, J Paal, A Suija Biodiversity and Conservation 18, 105-125, 2009 | 111 | 2009 |
| Estonian mires: inventory of habitats J Paal, E Leibak Regio, Tartu, 2011 | 67 | 2011 |
| Impacts of increased nitrogen supply on Norwegian lichen‐rich alpine communities: a 10‐year experiment E Fremstad, J Paal, T Möls Journal of Ecology 93 (3), 471-481, 2005 | 66 | 2005 |
| Diversity and distribution pattern of bryophytes and vascular plants in a boreal spruce forest K Vellak, J Paal, J Liira Silva Fennica 37 (1), 3-13, 2003 | 59 | 2003 |
| " Loodusdirektiivi" elupaigatüüpide käsiraamat J Paal Digimap, 2004 | 56 | 2004 |
| Influence of tree stand age and management on the species diversity in Estonian eutrophic alvar and boreo-nemoral Pinus sylvestris forests E Meier, J Paal, J Liira, I Jüriado Scandinavian Journal of Forest Research 20 (S6), 135-144, 2005 | 46 | 2005 |
| Estonian wetland inventory 1997 J Paal, M Ilomets, E Fremstad, A Moen, E Børset, V Kuusemets, L Truus, ... Publication of the Project” Estonian Wetlands Conservation and Management, 1998 | 46* | 1998 |
| Eesti taimkatte kasvukohatüüpide klassifikatsioon (Classification of Estonian vegetation site types) J Paal Keskkonna Info-ja Tehnokeskus, Tallinn, Estonia, 1997 | 44 | 1997 |
| Classification of Estonian vegetation site types J Paal Tallinn, Eesti Keskkonnaministeerium & ÜRO Keskonnaprogramm 297, 1997 | 44 | 1997 |
| Microtopography and the properties of residual peat are convenient indicators for restoration planning of abandoned extracted peatlands T Triisberg, E Karofeld, J Liira, M Orru, R Ramst, J Paal Restoration Ecology 22 (1), 31-39, 2014 | 39 | 2014 |
| Re-vegetation of block-cut and milled peatlands: an Estonian example. T Triisberg, E Karofeld, J Paal | 38 | 2011 |
| Biodiversity of Estonian wetlands V Masing, J Paal, A Kuresoo Biodiversity in wetlands: assessment, function and conservation 1, 259-279, 2000 | 37 | 2000 |
| Greenhouse gas emissions in natural and managed peatlands of America: Case studies along a latitudinal gradient G Veber, A Kull, JA Villa, M Maddison, J Paal, T Oja, R Iturraspe, J Pärn, ... Ecological Engineering 114, 34-45, 2018 | 36 | 2018 |
