Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensity
We studied the spatial evenness of nitrogen (N) fertilizer and the effects of fertilization intensity on the short-term volume growth responses in two ground-fertilized Scots pine and two airborne-fertilized Norway spruce study sites on mesic (Myrtillus-type) upland forests in Eastern Finland. We al...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Finnish Society of Forest Science
2025-05-01
|
| Series: | Silva Fennica |
| Subjects: | |
| Online Access: | https://www.silvafennica.fi/article/24026 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850231949319208960 |
|---|---|
| author | Olli Muhonen Heli Peltola Annamari Laurén Veli-Pekka Ikonen Juha Nevalainen Laura Pikkarainen Antti Kilpeläinen Samuli Launiainen Marjo Palviainen |
| author_facet | Olli Muhonen Heli Peltola Annamari Laurén Veli-Pekka Ikonen Juha Nevalainen Laura Pikkarainen Antti Kilpeläinen Samuli Launiainen Marjo Palviainen |
| author_sort | Olli Muhonen |
| collection | DOAJ |
| description | We studied the spatial evenness of nitrogen (N) fertilizer and the effects of fertilization intensity on the short-term volume growth responses in two ground-fertilized Scots pine and two airborne-fertilized Norway spruce study sites on mesic (Myrtillus-type) upland forests in Eastern Finland. We also studied the relationships between measured fertilizer dose, N concentrations in the needles and soil organic (humus) layer, and volume growth of the trees. In each study site, we established three replicate 1 ha blocks for each fertilization treatment (0, 150 and 200 kg N ha–1). Each block contained three 200 m2 circular plots. The spatial evenness of the fertilizer was measured using textile funnels. The height, breast height diameter and vitality of the trees were measured annually. The nutrient concentrations in the needles and humus layer were measured once. Differences between the target and measured fertilizer doses were 3–10% for Scots pine and 11–22% for Norway spruce. At the Scots pine and Norway spruce sites, the volume growth was 0.4–2.1 and 1.8–2.6 m3 ha–1 a–1 higher with fertilization, respectively. The fertilizer dose correlated with the N concentrations in the needles and humus layer, and volume growth. Significant volume growth responses to the fertilization (p < 0.05) were found only in the Scots pine at Ilomantsi, possibly due to variations in the initial volume and the fertilizer dose realized between and within treatments. We expect that the differences in volume growth responses between fertilization treatments will increase over time. |
| format | Article |
| id | doaj-art-2d439e46f5954943a6e50f44b1ee8bbb |
| institution | OA Journals |
| issn | 2242-4075 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Finnish Society of Forest Science |
| record_format | Article |
| series | Silva Fennica |
| spelling | doaj-art-2d439e46f5954943a6e50f44b1ee8bbb2025-08-20T02:03:20ZengFinnish Society of Forest ScienceSilva Fennica2242-40752025-05-0159110.14214/sf.24026Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensityOlli Muhonen0https://orcid.org/0009-0007-4051-8567Heli Peltola1https://orcid.org/0000-0003-1384-9153Annamari Laurén2https://orcid.org/0000-0002-6835-9568Veli-Pekka Ikonen3https://orcid.org/0000-0003-1732-2922Juha Nevalainen4https://orcid.org/0009-0000-2972-4385Laura Pikkarainen5https://orcid.org/0000-0001-5301-3639Antti Kilpeläinen6https://orcid.org/0000-0003-4299-0578Samuli Launiainen7https://orcid.org/0000-0001-6611-6573Marjo Palviainen8https://orcid.org/0000-0001-9963-4748University of Eastern Finland, School of Forest Sciences, Yliopistokatu 7, FI-80101 Joensuu, FinlandUniversity of Eastern Finland, School of Forest Sciences, Yliopistokatu 7, FI-80101 Joensuu, FinlandUniversity of Eastern Finland, School of Forest Sciences, Yliopistokatu 7, FI-80101 Joensuu, Finland; University of Helsinki, Department of Forest Sciences, Latokartanonkaari 7, FI-00014 Helsinki, FinlandUniversity of Eastern Finland, School of Forest Sciences, Yliopistokatu 7, FI-80101 Joensuu, FinlandUniversity of Eastern Finland, School of Forest Sciences, Yliopistokatu 7, FI-80101 Joensuu, FinlandUniversity of Eastern Finland, School of Forest Sciences, Yliopistokatu 7, FI-80101 Joensuu, FinlandUniversity of Eastern Finland, School of Forest Sciences, Yliopistokatu 7, FI-80101 Joensuu, FinlandNatural Resources Institute Finland, Bioeconomy and Environment, Latokartanonkaari 9, FI-00790 Helsinki, FinlandUniversity of Helsinki, Department of Forest Sciences, Latokartanonkaari 7, FI-00014 Helsinki, FinlandWe studied the spatial evenness of nitrogen (N) fertilizer and the effects of fertilization intensity on the short-term volume growth responses in two ground-fertilized Scots pine and two airborne-fertilized Norway spruce study sites on mesic (Myrtillus-type) upland forests in Eastern Finland. We also studied the relationships between measured fertilizer dose, N concentrations in the needles and soil organic (humus) layer, and volume growth of the trees. In each study site, we established three replicate 1 ha blocks for each fertilization treatment (0, 150 and 200 kg N ha–1). Each block contained three 200 m2 circular plots. The spatial evenness of the fertilizer was measured using textile funnels. The height, breast height diameter and vitality of the trees were measured annually. The nutrient concentrations in the needles and humus layer were measured once. Differences between the target and measured fertilizer doses were 3–10% for Scots pine and 11–22% for Norway spruce. At the Scots pine and Norway spruce sites, the volume growth was 0.4–2.1 and 1.8–2.6 m3 ha–1 a–1 higher with fertilization, respectively. The fertilizer dose correlated with the N concentrations in the needles and humus layer, and volume growth. Significant volume growth responses to the fertilization (p < 0.05) were found only in the Scots pine at Ilomantsi, possibly due to variations in the initial volume and the fertilizer dose realized between and within treatments. We expect that the differences in volume growth responses between fertilization treatments will increase over time.https://www.silvafennica.fi/article/24026pinus sylvestrispicea abiesboreal foreststand growthforest fertilizationupland forestsnitrogen fertilizer dose |
| spellingShingle | Olli Muhonen Heli Peltola Annamari Laurén Veli-Pekka Ikonen Juha Nevalainen Laura Pikkarainen Antti Kilpeläinen Samuli Launiainen Marjo Palviainen Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensity Silva Fennica pinus sylvestris picea abies boreal forest stand growth forest fertilization upland forests nitrogen fertilizer dose |
| title | Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensity |
| title_full | Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensity |
| title_fullStr | Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensity |
| title_full_unstemmed | Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensity |
| title_short | Spatial evenness of fertilization and short-term volume growth responses of Scots pine and Norway spruce to fertilization intensity |
| title_sort | spatial evenness of fertilization and short term volume growth responses of scots pine and norway spruce to fertilization intensity |
| topic | pinus sylvestris picea abies boreal forest stand growth forest fertilization upland forests nitrogen fertilizer dose |
| url | https://www.silvafennica.fi/article/24026 |
| work_keys_str_mv | AT ollimuhonen spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT helipeltola spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT annamarilauren spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT velipekkaikonen spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT juhanevalainen spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT laurapikkarainen spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT anttikilpelainen spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT samulilauniainen spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity AT marjopalviainen spatialevennessoffertilizationandshorttermvolumegrowthresponsesofscotspineandnorwaysprucetofertilizationintensity |