Intraspecies and age polymorphism of Norway spruce (Picea Abies (L.) Karst.) in conditions of the Vologda region

10.12737/2177 ◽  
2014 ◽  
Vol 3 (4) ◽  
pp. 24-32
Author(s):  
Дружинин ◽  
Fedor Druzhinin ◽  
Макаров ◽  
Yuriy Makarov

Objects of study are located in the southern taiga subzone of the European North and presented by spruce stands of wood sorrel types of site conditions with mixed stands. Lying of test areas was carried out in young stands, middle-aged, maturing and mature forests on the territory of Griazovets district of Vologda Region. Nature of bark structure at breast height, type of branching on twigs growing up in the middle of the crowns was determined. Processing of tree descriptions was performed on all study objects where 4 types of spruce were recorded by the nature of the structure of bark. By type of branches presence of three forms of spruce were defined.

2019 ◽  
Vol 65 (2) ◽  
pp. 121-128
Author(s):  
Elena Nakvasina ◽  
Nadezhda Demina ◽  
Nadezhda Prozherina ◽  
Natalia Demidova

Abstract Phenotypic plasticity of 22 spruce provenances in three test plots located in the European North of Russia was studied. Parent spruce stands are located within the Russian Plain and are represented by Picea abies (L.) Karst., P. obovata (Ledeb.) and two introgressive hybrids. In the test plots located in the middle and southern taiga subzones P. abies provenances are tested northward of its distribution area and P. obovata provenances are tested within the distribution area and nearby its boundaries. phenotypic plasticity of the spruce provenances was assessed. Straight-line regression coefficient based on survival, diameter, and height was calculated. All provenances are divided into two groups: plastic and non-plastic provenances. High plasticity is observed more often for P. abies and hybrids forms with properties of P. abies. Plastic provenances based on three parameters grow in the Leningrad, Pskov, Vologda, Kostroma and Karelia. Area of parent stands growing is quite small-size and lies between 56º30´ – 61º40´ N and 30º30´ – 42º30´ E. Adaptive provenances of P. obovata and its related hybrids forms grow in the North-Eastern part of the Russian Plain that could be consequence of its distribution in Holocene. Picea abies being the more adaptive species would be more responsive to climate changes in terms of survival and growth rate than P. obovata. Therefore, in case of sustainable climate warming in the Northern areas of the Russian Plain, the further propagation and major distribution of P. abies with further competitive replacement of P. obovata can be expected.


2021 ◽  
Vol 76 (1) ◽  
pp. 1-10
Author(s):  
L. G. Bogatyrev ◽  
A. I. Benediktova ◽  
M. M. Karpukhin ◽  
V. M. Telesnina ◽  
N. I. Zhilin ◽  
...  

2017 ◽  
Vol 6 (4) ◽  
pp. 27-32
Author(s):  
Irina Anatolievna Getmanets ◽  
Irina Valerievna Moskvina ◽  
Boris Alexandrovich Artemenko

The following paper deals with the phytoindication of ecotopes of spruce forests on the western slope of Mount Lipovaya within the territory of the Kusinsky District. This phytoindication was made on the basis of D.N. Tsyganovs ecological scales and with the help of EcoScaleWin computer software. The cenotic properties of species are estimated by their abundance in typical communities; limiting factors, ecological valence and tolerance are determined; the degree of use of ecological potencies and the efficiency of development of ecological space are estimated and the aggregate parameters of habitats are described. The vertical structure and composition of spruce stands are estimated, it is shown that Picea obovata is noted in all tiers, where Betula pendula and Pinus sylvestris are also present, but their numbers range from 10-20% of the total number of individuals in the study area. The unevenness of the distribution of the stand is noted. The ratio of the species of eco-and-coenotic groups is analyzed and it is shown that in the communities the species of the boreal and boron groups are predominated, the nemoral and meadow (including tall grass) groups contribute significantly, a small percentage belongs to the non-forest group species (wetland and plurizonal). Biomorphological analysis revealed that the life form is stable, it is represented by a single-stem tree with different shape of the crown, which indicates the different ages of Siberian spruce. The investigated phytocenosis is attributed to the late succession communities, the late stage of restorative succession, because the dominant is a typically competitive species. The research materials can serve as a basis for plant communities and coenotic populations monitoring, for identifying of the potential species richness of phytocenoses.


2008 ◽  
Vol 54 (No. 7) ◽  
pp. 321-332 ◽  
Author(s):  
P. Kantor

: The study evaluates production parameters (height, diameter at breast height, volume) of Douglas fir (<I>Pseudotsuga menziesii</I> [Mirb.] Franco) at mesotrophic sites of the Křtiny Training Forest Enterprise in mature stands. In total, 29 mixed stands were assessed with the registered proportion of Douglas fir at an age of 85 to 136 years. Comparing the 10 largest Douglas firs with the 10 largest spruces or larches higher, and as a rule markedly higher, production potential of introduced Douglas fir was found in all assessed stands. There were also groups of trees where the volume of Douglas fir was twice to 3 times higher than the volume of spruce or larch (see Tabs. 5 to 10). For example, in stand 177B11, the mean volume of 9.12 m<sup>3</sup> was recorded in the 10 largest Douglas fir trees but the volume of spruce reached only 3.17 m<sup>3</sup> and the volume of larch was 3.70 m<sup>3</sup>. Differences in mensurational parameters of Douglas fir found on the one hand and of Norway spruce (<I>Picea abies</I> [L.] Karst.) or European larch (<I>Larix decidua</I> Mill.) on the other hand compared by ANOVA tests were statistically highly significant. Annual ring analyses have shown that at present the volume increment of particular Douglas fir trees ranges from 0.12 to 0.16 m<sup>3</sup> per year in mature stands (i.e. about 1.5 m<sup>3</sup> every 10 years).


2000 ◽  
Vol 15 (3) ◽  
pp. 117-121 ◽  
Author(s):  
Gordon D. Nigh ◽  
Bobby A. Love

Abstract Good estimates of juvenile heights are important for silviculture and timber supply decision-making. These height estimates are particularly important for estimating the number of years it takes a stand to reach green-up and breast height. Thirty-nine 0.04 ha plots were established in managed juvenile stands of interior spruce in the Prince Rupert Forest Region. Four sample trees in each plot were split longitudinally and height-age data were obtained from the exposed pith nodes or branch whorls. The height-age data were fit to a combined exponential and power function to create a juvenile height model for interior spruce. This model is a function of age and site index. Years to breast height and green-up age models were developed with data generated from the juvenile height model. Forecasts from these models indicate that the time to reach breast height and green-up age is less than previously expected. The juvenile height model, years to breast height model, and green-up age model should be used for site indices above 14.2 m. In addition, the height model should only be used up to total age 20. West. J. Appl. For. 15(3):117-121.


1986 ◽  
Vol 16 (2) ◽  
pp. 321-326 ◽  
Author(s):  
J. C. Carlyle ◽  
D. C. Malcolm

The growth and N status of Sitka spruce on deep peat sites low in available N is improved in the presence of larch. It has been suggested that larch stimulates N mineralization because of high N concentrations in its litter and the large N input resulting from its annual litter fall. However, while larch foliar N concentrations were shown to be high, marked withdrawal and storage in other tree components resulted in a relative and absolute impoverishment of the litter. P and K could be leached from senescing foliage in relatively large amounts, but the potential loss of N was low. Field measurements of throughfall substantiated this finding. Larch seemed extremely conservative in its use of N, suggesting that larch litter does not directly enhance N availability in mixed stands.


2004 ◽  
Vol 31 (3) ◽  
pp. 310-318 ◽  
Author(s):  
Yu. N. Krasnoshchekov ◽  
E. N. Valendik ◽  
I. N. Bezkorovainaya ◽  
N. D. Sorokin ◽  
V. V. Kuz'michenko ◽  
...  

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