Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in Finland
The effects of nitrogen (N) fertilization on tree growth have been studied widely in boreal forests in Finland, but a quantitative synthesis is still lacking. We performed a quantitative synthesis on volume growth responses to N fertilization in Scots pine (Pinus sylvestris L.) and Norway spruce (Pi...
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| Language: | English |
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Finnish Society of Forest Science
2025-01-01
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| Series: | Silva Fennica |
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| Online Access: | https://www.silvafennica.fi/article/24041 |
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| author | Johanna Jetsonen Annamari Laurén Heli Peltola Katariina Laurén Samuli Launiainen Marjo Palviainen |
| author_facet | Johanna Jetsonen Annamari Laurén Heli Peltola Katariina Laurén Samuli Launiainen Marjo Palviainen |
| author_sort | Johanna Jetsonen |
| collection | DOAJ |
| description | The effects of nitrogen (N) fertilization on tree growth have been studied widely in boreal forests in Finland, but a quantitative synthesis is still lacking. We performed a quantitative synthesis on volume growth responses to N fertilization in Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) stands in experiments established on mineral soils across Finland. Our study employed findings of 9 published studies including 108 Scots pine and 57 Norway spruce observations covering a wide range of N fertilization treatments, as well as forest stand- and climatic conditions. Based on these observations, we built linear mixed models to describe the N fertilization-induced annual volume growth response of Scots pine and Norway spruce stands. Our models showed that the N dose was the best predictor for volume growth response, and the growth response increased linearly with increasing N dose for both tree species. The volume growth responses also increased along with an increase in mean annual precipitation. The annual volume growth response decreased with the time since fertilization. For Scots pine, the best model also contained site fertility; increase in site fertility increased the volume growth response. These findings emphasize the need for site-specific precision fertilization schemes to sustainably improve growth and carbon sequestration of boreal forests. |
| format | Article |
| id | doaj-art-edc21e59cfc0412d88e07b2ff0aaae97 |
| institution | Kabale University |
| issn | 2242-4075 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Finnish Society of Forest Science |
| record_format | Article |
| series | Silva Fennica |
| spelling | doaj-art-edc21e59cfc0412d88e07b2ff0aaae972025-02-05T07:09:26ZengFinnish Society of Forest ScienceSilva Fennica2242-40752025-01-0159110.14214/sf.24041Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in FinlandJohanna Jetsonen0https://orcid.org/0009-0006-4878-8951Annamari Laurén1https://orcid.org/0000-0002-6835-9568Heli Peltola2https://orcid.org/0000-0003-1384-9153Katariina Laurén3https://orcid.org/0009-0009-4677-9826Samuli Launiainen4https://orcid.org/0000-0001-6611-6573Marjo Palviainen5https://orcid.org/0000-0001-9963-4748Department of Forest Sciences, University of Helsinki, P.O. Box 27, 00014 University of Helsinki, FinlandDepartment of Forest Sciences, University of Helsinki, P.O. Box 27, 00014 University of Helsinki, Finland; Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, FinlandFaculty of Science and Forestry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, FinlandFaculty of Science and Forestry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland; University of Helsinki, Faculty of Medicine, Haartmaninkatu 8, 00290 Helsinki, FinlandNatural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790 Helsinki, FinlandDepartment of Forest Sciences, University of Helsinki, P.O. Box 27, 00014 University of Helsinki, FinlandThe effects of nitrogen (N) fertilization on tree growth have been studied widely in boreal forests in Finland, but a quantitative synthesis is still lacking. We performed a quantitative synthesis on volume growth responses to N fertilization in Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) stands in experiments established on mineral soils across Finland. Our study employed findings of 9 published studies including 108 Scots pine and 57 Norway spruce observations covering a wide range of N fertilization treatments, as well as forest stand- and climatic conditions. Based on these observations, we built linear mixed models to describe the N fertilization-induced annual volume growth response of Scots pine and Norway spruce stands. Our models showed that the N dose was the best predictor for volume growth response, and the growth response increased linearly with increasing N dose for both tree species. The volume growth responses also increased along with an increase in mean annual precipitation. The annual volume growth response decreased with the time since fertilization. For Scots pine, the best model also contained site fertility; increase in site fertility increased the volume growth response. These findings emphasize the need for site-specific precision fertilization schemes to sustainably improve growth and carbon sequestration of boreal forests.https://www.silvafennica.fi/article/24041precipitationgrowth responsemineral soilssite fertility |
| spellingShingle | Johanna Jetsonen Annamari Laurén Heli Peltola Katariina Laurén Samuli Launiainen Marjo Palviainen Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in Finland Silva Fennica precipitation growth response mineral soils site fertility |
| title | Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in Finland |
| title_full | Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in Finland |
| title_fullStr | Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in Finland |
| title_full_unstemmed | Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in Finland |
| title_short | Volume growth responses of Scots pine and Norway spruce to nitrogen fertilization: quantitative synthesis of fertilization experiments in Finland |
| title_sort | volume growth responses of scots pine and norway spruce to nitrogen fertilization quantitative synthesis of fertilization experiments in finland |
| topic | precipitation growth response mineral soils site fertility |
| url | https://www.silvafennica.fi/article/24041 |
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