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Biomass and nutrient cycle in fertilized and unfertilized pine, mixed birch and pine and spruce stands on a drained mire
Biomass and nutrient cycle in fertilized and unfertilized pine, mixed birch and pine and spruce stands on a drained mire
- Publication Year :
- 1989
- Publisher :
- The Society of Forestry in Finland - The Finnish Forest Research Institute, 1989.
-
Abstract
- Biomass, biomass increment and nutrient cycling were studied in (1) a Scots pine (Pinus sylvestris) stand, (2) a Norway spruce (Picea abies) stand and (3) a mixed birch (Betula pubescens)/pine stand on a drained mire at Ilomantsi, eastern Finland in 1979-85. In addition, the effect of NPK and micronutrient fertilizer treatment was studied. Above-ground and root measurements were taken. These data formed the basis of stand biomass and nutrient cycle simulations of fertilized and unfertilized stands. The increases in biomass were greater in (1) and (2) in the fertilized simulation than in the unfertilized one. For (3), the effect of fertilization on biomass increment was small. In six years only part of the applied fertilizer had been fixed in the biomass of the model stands and proportionally less micronutrients than macronutrients. The potassium stores were small compared to the nutrient amounts fixed by the stands. This supports the notion that there is a shortage of potassium on deep-peat soils.
- Subjects :
- peat soils
Nutrient cycle
cycling
nutrition physiology
010504 meteorology & atmospheric sciences
fertilizers
mänty
biomassa
Biomass
hieskoivu
010501 environmental sciences
minor elements
ravinteet
01 natural sciences
complex mixtures
Betula pubescens
pines
Mire
Botany
broadleaves
turvemaat
0105 earth and related environmental sciences
biology
biomass
Picea abies
fungi
food and beverages
Pinus sylvestris
trees
15. Life on land
biology.organism_classification
simulation
lannoitus
kuusi
woody plants
NPK fertilizers
Environmental science
soil types
production
General Agricultural and Biological Sciences
drainage
suometsät
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....fb33d9582b104636ae4a4d64dedfff1c