The nutrient status of Norway spruce in pure and in mixed-species stands

Thelin, Gunnar; Rosengren, Ulrika; Callesen, Ingeborg; Ingerslev, Morten

doi:10.1016/s0378-1127(01)00464-9

Cited by 45 publications

(38 citation statements)

References 22 publications

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“…In spruce-birch stands, highly competitive and nutrient-demanding spruce outcompeted birch on sites of rich and intermediate fertility level, but not on poor site. The simulated dynamics of the three tree species is in agreement with earlier studies on mixed stands (Kelty 1992(Kelty , 2006Thelin et al 2002), and our findings regarding the competitive status of the tree species in different phases of stand development are consistent with knowledge of the ecological features of these species (Ilvessalo and Ilvessalo 1975).…”

Section: Discussionsupporting

confidence: 91%

Tree species composition affects productivity and carbon dynamics of different site types in boreal forests

2013

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The objective was to analyse how differences in the initial proportions of tree species and site fertility affect carbon sequestration in living biomass and soil. We used the individual-based simulation model EFIMOD, which is able to simulate spatially explicit competition between trees for light and nutrients. Simulations were carried out for three site types with distinct initial stocks of soil nutrients. For each site, the 100-years undisturbed dynamics of monocultures and mixtures of three tree species (Betula pendula Roth, Pinus sylvestris L. and Picea abies (L.) H. Karst.) was predicted. Changes in the proportions of competing tree species were dependent on the fertility of the site: on poor sites, pine was the most competent species, while on rich sites, spruce increased its proportion during stand succession. Net primary production (NPP) and soil respiration were the highest in stands of two coniferous species and in stands with a high initial proportion of pine. Mixed stands were more productive than monocultures; the highest overyielding was observed with mixtures of two coniferous species. Simulated NPP and carbon stocks in all pools increased from poor to rich sites. The highest carbon stocks in standing biomass were observed for mixtures of conifer species and three-species mixtures; the greatest accumulation of forest floor occurred in stands with high proportions of pine.

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Section: Discussionsupporting

confidence: 91%

Tree species composition affects productivity and carbon dynamics of different site types in boreal forests

2013

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“…planted in adjacent stands on the same soils. The study was focused on deciduous species, but Norway spruce was also included for comparison due to the fact that nutritional aspects of this species in relation to soil condition have been well studied [25,29,42,48,49].…”

Section: Introductionmentioning

confidence: 99%

Macronutrients in tree stems and foliage: a comparative study of six temperate forest species planted at the same sites

Hagen-Thorn

Armolaitis

Callesen³

et al. 2004

Ann. For. Sci.

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-Common European tree species (oak, ash, beech, birch, lime and spruce) planted in adjacent stands on six sites were compared in terms of macronutrient concentrations in foliar and stem wood (including bark) biomass. The nutrient concentrations in both biomass compartments were much more dependent on species than on site although soil conditions differed between the sites. Differences between species regarding stem wood nutrient concentrations only partly corresponded to the differences in species foliage. The concentrations in spruce were considerably lower than in deciduous species, except P in foliage, and Ca in both stem wood and foliar biomass. Differences were also observed between the deciduous species both regarding foliar and stem wood nutrient concentrations. The differences should be considered when modelling nutrient circulation in forest stands and when evaluating the long-term sustainability of forest management. nutrient / hardwood / Norway spruce / stemwood / foliage Résumé -Éléments minéraux dans le tronc et le feuillage : une étude comparative de six essences tempérées plantées sur les mêmes sites. Les essences européennes communes (chêne, frêne, hêtre, bouleau, tilleul et épicéa commun) plantées dans des parcelles adjacentes sur six sites ont été comparées en termes de concentrations en macro-éléments minéraux dans la biomasse foliaire et dans le tronc (écorce y compris). Ces concentrations dépendaient plus de l'espèce que du site, bien que les conditions de sol étaient différentes entre les sites. Les différences entre les espèces observées dans le bois de tige ne correspondaient que partiellement à celles observées dans le feuillage. L'épicéa commun était plus pauvre en éléments minéraux que les feuillus excepté concernant le P dans le feuillage, et le Ca dans le tronc ainsi que dans la biomasse foliaire. Des différences de concentrations minérales ont également été observées entre les espèces de feuillus dans le bois ainsi que dans le feuillage. Ces différences devraient être considérées pour la modélisation de la circulation des éléments minéraux dans les peuplements forestiers et dans l'évaluation des aménagements forestiers dans le cadre d'une gestion durable. nutriment / feuillu / épicéa commun / bois de tige / feuillage e

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“…Because of this result (highest rate of carbon sequestration in the mixed plantations of Cupressus arizonica with deciduous hardwoods trees) could be Increase soil organic carbon in this stsnds. Because mixture of softwoods and hardwoods makes improved rate of decomposition (Thelin et al, 2002;Redondo and Montagnini, 2006). It is well known that the soil organic matter declines in soils under agriculture conditions, depending on the type of crop and soil management.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Carbon sequestration in pure and mixed plantations of <i>Cupressus arizonica</i>

Amirahmadi¹,

Hojjati²,

Poormajidian³

et al. 2017

Journal of Applied Sciences and Environmental Management

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ABSTRACT:The present study was conducted to investigate the effect of tree mixture on Carbon sequestration in cupressus arizonica plantations. Emission of carbon dioxide via human activities is known as the main cause of global warming. Therefore, in this study, soil carbon sequestration in mixed and pure stands was measured in order to compare the effect of tree mixture on the amount of carbon stored in the top mineral soil layer. The study site was Khargosh Valley Forest Park, located in Tehran province. This study included 4 different type of stands, the pure Cupressus arizonica, the pure Pinus eldarica, the mixed Cupressus arizonica and Pinus eldarica and the mixed Cupressus arizonica with deciduous hardwoods. Sampling method was done with a Systematic random network with dimensions 75 × 75 m. Samples parts were Square with dimensions of 20 x 20 m. At each plot center, forest floor was sampled from the first 10 cm of soil. To analyze the data one way analyses of variance (ANOVA) in SPSS v.20 was used to assess the Soil parameters. Tukey's tests were used to test significant effects (p ≤ 0.05). Our results showed that the mean Carbon sequestration in the mixed plantations of Cupressus arizonica with deciduous hardwoods trees soils was greater than the other stands which in the standing mixed Cupressus arizonica and Pinus eldarica was lower than the pure stands. Our results Recommended for establishment ofconifer plantation, used mixed culture of Conifers with broadleaf Instead of pure cultures conifers. ©JASEM http://dx.doi.org/10.4314/jasem.v20i4.10

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The nutrient status of Norway spruce in pure and in mixed-species stands

Cited by 45 publications

References 22 publications

Tree species composition affects productivity and carbon dynamics of different site types in boreal forests

Tree species composition affects productivity and carbon dynamics of different site types in boreal forests

Macronutrients in tree stems and foliage: a comparative study of six temperate forest species planted at the same sites

Evaluation of Carbon sequestration in pure and mixed plantations of <i>Cupressus arizonica</i>

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