scholarly journals The oldest Pinus nigra plantations in the central Apennines: distribution and floristic-vegetational characterisation

2021 ◽  
Vol 58 (2) ◽  
pp. 15-28
Author(s):  
Giulio Tesei ◽  
Marina Allegrezza ◽  
Sandro Ballelli ◽  
Giampiero Ciaschetti ◽  
Carlo Console ◽  
...  
Keyword(s):  
National Parks ◽  
Pinus Nigra ◽  
Landscape Context ◽  
Pine Forests ◽  
Forest Plantations ◽  
Central Apennines ◽  
New Associations ◽  
Potential Vegetation ◽  
Vegetation Belt ◽  
Natural Communities

This paper represents the first syntaxonomic study on the Pinus nigra subsp. nigra artificial stands in the Apennines. It refers exclusively to the mature Pinus nigra forest plantations in the central Apennines that were planted before the 1950s, and then not managed. The mature Pinus nigra forest plantations in the central Apennines are distributed within four National Parks, on limestone substrata, mainly with southern aspects and rugged slopes, and at elevations ranging from 655 m to 1670 m a.s.l.. Two new phytosociological associations are described here and classified in the alliance Junipero communis–Pinion nigrae: Orthilio secundae–Pinetum nigrae and Digitalidi micranthae–Pinetum nigrae. The association Orthilio secundae–Pinetum nigrae comprises the relative mesophilous mature pine forests of the supratemperate thermotype in the plant landscape context of the alliance Aremonio agrimonioidis–Fagion sylvaticae potential vegetation belt. The Digitalidi micranthae–Pinetum nigrae comprises the thermophilous pine forests occurring on rocky stands within mesotemperate and lower supratemperate thermotypes in the potential belt of alliance Carpinion orientalis woods. The comparison of these two new associations and the phytosociological literature concerning the natural communities of Pinus nigra in the Apennines highlights their floristic and coenological autonomy.

scholarly journals Stand-level biomass models for predicting C stock for the main Spanish pine species

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Ana Aguirre ◽  
Miren del Río ◽  
Ricardo Ruiz-Peinado ◽  
Sonia Condés
Keyword(s):  
Form Factor ◽  
Pinus Halepensis ◽  
Dry Weight ◽  
Pinus Nigra ◽  
Carbon Stocks ◽  
Tree Size ◽  
Pine Forests ◽  
Stand Volume ◽  
Biomass Models ◽  
Pine Species

Abstract Background National and international institutions periodically demand information on forest indicators that are used for global reporting. Among other aspects, the carbon accumulated in the biomass of forest species must be reported. For this purpose, one of the main sources of data is the National Forest Inventory (NFI), which together with statistical empirical approaches and updating procedures can even allow annual estimates of the requested indicators. Methods Stand level biomass models, relating the dry weight of the biomass with the stand volume were developed for the five main pine species in the Iberian Peninsula (Pinus sylvestris, Pinus pinea, Pinus halepensis, Pinus nigra and Pinus pinaster). The dependence of the model on aridity and/or mean tree size was explored, as well as the importance of including the stand form factor to correct model bias. Furthermore, the capability of the models to estimate forest carbon stocks, updated for a given year, was also analysed. Results The strong relationship between stand dry weight biomass and stand volume was modulated by the mean tree size, although the effect varied among the five pine species. Site humidity, measured using the Martonne aridity index, increased the biomass for a given volume in the cases of Pinus sylvestris, Pinus halepensis and Pinus nigra. Models that consider both mean tree size and stand form factor were more accurate and less biased than those that do not. The models developed allow carbon stocks in the main Iberian Peninsula pine forests to be estimated at stand level with biases of less than 0.2 Mg∙ha− 1. Conclusions The results of this study reveal the importance of considering variables related with environmental conditions and stand structure when developing stand dry weight biomass models. The described methodology together with the models developed provide a precise tool that can be used for quantifying biomass and carbon stored in the Spanish pine forests in specific years when no field data are available.

Remote sensing of land-cover change and landscape context of the National Parks: A case study of the Northeast Temperate Network

2009 ◽  
Vol 113 (7) ◽  
pp. 1453-1461 ◽  
Author(s):  
Yeqiao Wang ◽  
Brian R. Mitchell ◽  
Jarunee Nugranad-Marzilli ◽  
Gregory Bonynge ◽  
Yuyu Zhou ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Land Cover ◽  
Land Cover Change ◽  
National Parks ◽  
Landscape Context

Are young trees suitable for climate-growth analysis? A trial with Pinus nigra in the central Apennines treeline

2020 ◽  
Vol 62 ◽  
pp. 125720
Author(s):  
Enrico Tonelli ◽  
Alessandro Vitali ◽  
Alma Piermattei ◽  
Carlo Urbinati
Keyword(s):  
Growth Analysis ◽  
Pinus Nigra ◽  
Central Apennines

The impact of forest management on changes in composition of terricolous lichens in dry acidophilous Scots pine forests

2013 ◽  
Vol 45 (3) ◽  
pp. 413-425 ◽  
Author(s):  
Alica DINGOVÁ KOŠUTHOVÁ ◽  
Ivana SVITKOVÁ ◽  
Ivan PIŠÚT ◽  
Dušan SENKO ◽  
Milan VALACHOVIČ
Keyword(s):  
Scots Pine ◽  
Pine Forests ◽  
Forest Plantations ◽  
Managed Forests ◽  
Natural Forests ◽  
Moss Species ◽  
Management Actions ◽  
Scots Pine Forests ◽  
Terricolous Lichens ◽  
The Impact

AbstractThis study focuses on dry acidophilous Scots pine forests, well known for their high biodiversity of cryptogams. We hypothesized that dense forests and heavy management were responsible for changes in species diversity, decreasing trends in lichen cover and increasing moss cover. This hypothesis was tested in three types of Scots pine forests maintained under three different management regimes: 1) managed forests (forest plantations regenerated by planting), 2) semi-natural forests (forest plantations regenerated naturally), both located in the Borská nížina lowland in SW Slovakia, and 3) natural forests (primordial vegetation without visible management actions from the associationCladonio-PinetumJuraszek 1928), located in the Bory Tucholskie National Park, NW Poland.We observed that the cover of the canopy tree layer had the most significant influence on the diversity of lichens. Managed forests are planted and maintained to achieve denser tree stocking, and although the environmental conditions created appear optimal for moss species, they are less suitable for terricolous lichens.

scholarly journals Evaluation of Thinning Efficiency in Pineries of Dry Forest Sites of the Kazakh Uplands

2021 ◽  
pp. 45-55
Author(s):  
Anastasiya Dancheva ◽  
◽  
Vladislav Pankratov ◽  
Keyword(s):  
Tree Ring ◽  
High Intensity ◽  
Radial Growth ◽  
Control Site ◽  
Dry Forest ◽  
Pine Forests ◽  
Forest Plantations ◽  
Thinning Intensity ◽  
Forest Sites ◽  
Dry Conditions

According to the current Forest Code of the Republic of Kazakhstan, in the forest plantations of specially protected natural areas, the main forestry measures aimed at the conservation and enhancement of the protective functions of forests are intermediate felling, that is, thinning. Pinus sylvestris L. is one of the main forest-forming species in Kazakhstan. Increasing the stability of forest plantations and the possibility of forming recreationally attractive landscapes through thinning is an urgent problem for plantations growing in arid conditions. The research purpose is to analyze the effectiveness of thinning of high intensity in dry pine forests of the Kazakh Uplands for a 70-year period, using dendrochronological methods. It was proved that in dense pine forests growing in dry conditions, there is an increase in radial growth in each subsequent 10-year period after thinning. It was found with statistical certainty that the greatest response to changes caused by thinning of high intensity was observed between 1949 and 1960. Analysis of indexed tree-ring chronologies using regional curves (indexed average tree-ring chronologies of pine) using a cubic spline function revealed differences in pine radial growth indices from the site where thinning of high intensity were carried out and from the control site (time periods: 1947–1955, 1961–1970, 1981–1990, and 1995–2015). The data obtained show a positive effect of thinning of high intensity on the radial growth of trees in the considered pine forests. In dense pine forests of dry growing conditions of the Kazakh Uplands it is recommended to make 1 or 2 cuttings with thinning intensity of 25–35 % at the age of 20–25 and 40–50, respectively, with subsequent increment thinning.

Communities of the class Koelerio-Corynephoretea Klika in Klika et Novák 1941 in the Bryansk region of Russia

2017 ◽  
pp. 29-34 ◽  
Author(s):  
A. D. Bulokhov ◽  
A. M. Petrenko
Keyword(s):  
Sandy Soils ◽  
Calluna Vulgaris ◽  
Large River ◽  
Pine Forests ◽  
East European Plain ◽  
Character Species ◽  
New Associations ◽  
The North ◽  
River Terraces ◽  
Shallow Soils

Only few publications on the classification of vegetation of Koelerio–Corynephoretea canescentis Klika in Klika et Novák1941 class, that unites pioneer communities on sandy soils, dunes or an exposed sands, is known for Bryansk region of Russia (Bulokhov, 2001; Bulokhov, Kharin, 2008). This region is located in the western part of the East European plain, on the watershed of two large river (Dnieper and Volga) systems, occupying the central part of the Desna river pool and the woody watershed between Desna and Oka. The territory (34.9 thousand кm2) is extended from the west to the east on 270 km (between 31°10′ and 35°20′ E) and from the north to the south — on 190 km (between 54°05′ and 52°10′ N). The main item of this paper is to submit the results of the classification carried out upon thebasis of 57 releves made in 2003–2016 in Bryansk region and to characterize the composition, distribution and syntaxonomical position of thepioneer vege­tation of sandy and shallow soils communities within it. Three new associations are described according to Braun-Blanquet floristic classification. The syntaxon nomenclature of the higher ranks follows Mucina et al. (2016) The ass. Thymo serpylli–Koelerietum glaucae ass. nov. hoc loco, with synecological optimum on dry poor sandy soils, is diagnosed by character species Artemisia campestris, Koeleria glauca, Thymus serpyl­lum. Its communities occur on fringes of the lichen pine forests, sandy river terraces and outwash plains. Two subassociations are distinguished within the association: T. s.–K. g. typicum (with var. typica and Corynephorus canescens) and agrostietosum vinealis subass. nov. hoc loco (with var. typica and Calluna vulgaris) with Agrostis vinealis, Dianthus arenarius, Cladonia arbuscula as differential species. The ass. Koelerio glaucae–Plantaginetum arena­riae ass. nov. hoc loco, with synecological optimum on dry poor sandy soils or exposed sands, is diagnosed by Plantago arenaria and Koeleria glauca. Its communities occuron the exposed sands, fringes of lichen pine forests and not flooded sandy river crests. The ass. Diantho borbasii–Festucetum polesicae ass. nov. hoc loco with synecological optimum on dry, weekly acidic, poor of mineral nitrogen, sandy soils or the exposed sands, is diagnosed by Festuca pole­sica, Astragalus arenarius, Jurinea cyanoides, Otites parviflora. Communities occur on the exposed sands, fringes of lichen pine forests. Two variants are distinguished within association: Sempervivum ruthenicum (on dunes with dry, poor, weekly developed soils) and typica. These three associations are the early stages of the progressive succession of oligotrophic lichen pine fo­rests on the river terraces or of the heath meadows in flood river plains.

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