气候变化领域集成服务门户(CCPortal): Biochar amendment increases tree growth in nutrient-poor, young Scots pine stands in Finland

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DOI	10.1016/j.foreco.2020.118362
	Biochar amendment increases tree growth in nutrient-poor, young Scots pine stands in Finland
	Palviainen M.; Aaltonen H.; Laurén A.; Köster K.; Berninger F.; Ojala A.; Pumpanen J.
发表日期	2020
ISSN	0378-1127
卷号	474
英文摘要	Biochar is charred material formed by the pyrolysis of organic matter. The addition of biochar to soil may offer a chance to mitigate climate change by increasing soil carbon stocks, improving soil fertility and enhancing plant growth. Vast majority of biochar studies are conducted in agricultural soils, and field experiments studying the effect of biochar on tree growth in boreal forests are lacking. We applied spruce biochar amendments of 5 and 10 Mg ha−1 to the soil surface in young boreal Scots pine (Pinus sylvestris L.) forests in Southern Finland and studied the responses in tree growth and needle nitrogen (N) and 15N concentrations during the first three years after treatment. The biochar amendment of 10 Mg ha−1 increased the diameter growth of dominant trees significantly, on average by 1 mm year−1, which corresponded to 25% increase compared to control during the three years study period. The positive growth responses were less pronounced in height than in diameter growth. The biochar amendment of 5 Mg ha−1 increased the height growth of dominant trees by 0.16 m or 12% compared to the control during three years. Biochar amendments did not affect N and 15N concentrations in needles. The results suggest that wood biochar amendment can be a climate-friendly method to increase tree biomass production in nutrient poor, xeric, young Scots pine forests. © 2020 Elsevier B.V.
关键词	Agricultural robots Climate change Needles Nutrients Soils Agricultural soils Biochar amendments Field experiment Pinus sylvestris Scots pine forest Scots pine stands Soil carbon stock Southern Finland Forestry biochar biomass carbon sequestration climate change concentration (composition)coniferous forest coniferous tree growth response nitrogen isotope organic matter pyrolysis soil amendment soil carbon soil fertility soil surface stand structure Forestry Growth Needles Nutrients Pinus Sylvestris Soil Trees Finland Picea Pinus sylvestris
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132643
推荐引用方式 GB/T 7714	Palviainen M.,Aaltonen H.,Laurén A.,et al. Biochar amendment increases tree growth in nutrient-poor, young Scots pine stands in Finland[J]. Forest Ecology and Management,2020,474.
APA	Palviainen M..,Aaltonen H..,Laurén A..,Köster K..,Berninger F..,...&Pumpanen J..(2020).Biochar amendment increases tree growth in nutrient-poor, young Scots pine stands in Finland.,474.
MLA	Palviainen M.,et al."Biochar amendment increases tree growth in nutrient-poor, young Scots pine stands in Finland".474(2020).