Search Results - "Sikstrom, U"

Reduction of greenhouse gas emissions by wood ash application to a Picea abies (L.) Karst. forest on a drained organic soil by Klemedtsson, L, Ernfors, M, Björk, R.G, Weslien, P, Rütting, T, Crill, P, Sikström, U

“…Wood ash additions of 3.3 and 6.6 t ha⁻¹ reduced greenhouse gas (GHG) emissions from a spruce forest (Picea abies) on a minerotrophic drained organic soil…”
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Effects of wood ash fertilization on forest floor greenhouse gas emissions and tree growth in nutrient poor drained peatland forests by Ernfors, M., Sikström, U., Nilsson, M., Klemedtsson, L.

“…Wood ash (3.1, 3.3 or 6.6 tonnes dry weight ha − 1 ) was used to fertilize two drained and forested peatland sites in southern Sweden. The sites were chosen to…”
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Effects of repeated urea doses on soil chemistry and nutrient pools in a Norway spruce stand by Nohrstedt, Hans-Örjan, Jacobson, Staffan, Sikström, Ulf

“…Pools of macro-nutrients in soil and vegetation were studied in an old fertilization experiment with a large previous input of N. Different doses of N, in the…”
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Survival, growth and needle element concentrations of Picea abies (L.) Karst. seedlings after brash removal in a previously N fertilized stand by Sikstrom, U

“…Export of nutrients after whole-tree harvest (WTH), i.e. harvesting nearly all of the aboveground parts of the trees, may affect the long-term sustainability…”
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Reduced global warming potential after wood ash application in drained Northern peatland forests by Rütting, Tobias, Björk, Robert G., Meyer, Astrid, Klemedtsson, Leif, Sikström, Ulf

“…•Wood ash addition to peatland forests increases C sequestration in tree biomass.•Increased tree growth decreases the GHG source strength of peatland…”
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Pre-harvest soil acidification, liming or N fertilization did not significantly affect the survival and growth of young Norway spruce by Sikström, Ulf

“…Acidification, liming, and N fertilization affect a number of soil properties. Such changes may have an impact on forest regeneration and yield. The aim of…”
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Effects of pre-harvest soil acidification, liming and N fertilization on the survival, growth and needle element concentrations of Picea abies L. Karst. seedlings by Sikström, Ulf

“…There are concerns that the anthropogenic acidification of Swedish forest soils may have severe effects on forest yield, and it has been suggested that liming…”
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Two felling methods in final cutting of shelterwood, single-grip harvester productivity and damage to the regeneration by Glöde, Dan, Sikström, Ulf

“…In order to find an efficient and careful way of final-cutting shelterwoods, two felling methods, in a single-grip harvester system, were compared with respect…”
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Effects of low-dose liming and nitrogen fertilization on stemwood growth and needle properties of Picea abies and Pinus sylvestris by Sikstrom, U

“…Stemwood growth, needle weight and nutrient concentrations in needles after liming and nitrogen fertilization were studied in two randomized block trials. The…”
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Stem-growth response of Pinus sylvestris and Picea abies to nitrogen fertilization as related to needle nitrogen concentration by SIKSTRÖM, U, NOHRSTEDT, H.-Ö, PETTERSSON, F, JACOBSON, S

“…Responses of stem-volume growth to N application were evaluated in relation to foliar N concentrations. Data from N-fertilization experiments in 28 Pinus…”
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Damage to Picea abies Regeneration After Final Cutting of Shelterwood with Single- and Double-grip Harvester Systems by Sikström, Ulf, Glöde, Dan

“…Logging-related damage to forest regeneration is a problem during final cutting in the shelterwood system. In order to compare the effects of logging methods,…”
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Effects of previous high N addition on nutrient conditions in above-ground biomass of a Picea abies stand in Sweden by Jacobson, S, Sikstrom, U, Nohrstedt, H.O

“…Deposition of air pollutants, together with intensified harvesting practices, has led to concern about the declining base cation status and the acidifying…”
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Reduction of greenhouse gas emissions by wood ash application to a Picea abies (L.) Karst. forest on a drained organic soil: Nitrogen and greenhouse gas exchange by KLEMEDTSSON, L, ERNFORS, M, BJÖRK, R. G, WESLIEN, P, RIJTTING, T, CRILL, P, SIKSTRÖM, U

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Stem-growth response of by Sikström, U., Nohrstedt, Hans-Örjan, Pettersson, Folke, Jacobson, Staffan

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