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Effects of different methods of site preparation on natural regeneration of Pinus sylvestris in Eastern Poland

100%

Aleksandrowicz-Trzcinska M., Drozdowski S., Brzeziecki B., Rutkowska P., Jablonska B.

Dendrobiology

2014

tom 71

Mechanical site preparation (MSP) is commonly used to enable forest regeneration of clear-cuts. Less intense methods may be more suitable from an environmental point of view, but such a method can result in the lack of natural regeneration. We compare the influence of three MSP methods on natural regeneration of Scots pine. The methods differ in their degree of soil disturbance. The effects of MSP by forest plough (FP), active plough (AP), and forest cutter (FC) on density, quality, and biometric parameters of one-year old seedlings were determined. The highest density of seedlings was obtained in the FP treatment (188,000 seedlings ha–1). The seedling density was significantly lower in the AP method (121,000 seedlings ha–1), and in the FC variant (36,000 seedlings ha–1). The best quality seedlings were found in the FC variant, and the worst – in the FP treatment. Most biometric parameters of seedlings did not differ by MSP method, except for the root length and root:shoot ratio. By the end of growing season, in the FP treatment, 1-year old seedlings formed a top bud more than twice as often as the seedlings from the AP and FC treatments. The FP method led to the best Scots pine natural regeneration. The results obtained in the FC variant were not as good as in the FP method, though they were still acceptable from the silvicultural point of view. The FC method was the least intensive method of site preparation, yet it is considered the most appropriate from the environmental (soil protection) point of view.

Analysis of the visitor flow and forest education actions in Kudypy Forest District

86%

Furgala-Seleziow G., Lewkowska A., Jankun M., Woznicki P., Rutkowska P., Skrzypczak A.

Polish Journal of Natural Sciences

2017

tom 32

nr 2

Kudypy Forest District lies in the Province of Warmia and Mazury, in the vicinity of Olsztyn, the capital city of the province. The surface area of this District is almost 18 thousand ha. Kudypy Forest District belongs to the Forest Promotional Complex called the Olsztyn Forests, which covers the areas of two forest districts: Kudypy and Olsztyn. Kudypy Forest District is composed of 13 forestries and the Forest Arboretum of Warmia and Mazury, which is the main educational fascility. Arboretumis also the main attraction for visitors. Kudypy Forest District has created three educational trailsalong key features. There are also jogging and nordic-walking trails set up in Kudypy Forest District.The outdoor classrooms are situated in four forestries. The most popular type of educational activities accomplished by Kudypy Forest District in 2012–2015 were field lessons and guided trips.The engagement of Kudypy Forest District’s employees in forest education generates beneficial outcomes. The interest among children and their participation in various forms of recreationand forest education has risen over the past years in connection with increasing of the number of the Forest Distirict’s employees involved in the organization of such recreational and educational activities. The participation of adult persons has remained on a stable and relatively high level

Ograniczanie wyników

1 Dendrobiology

1 Polish Journal of Natural Sciences

2 Rutkowska P.

1 Aleksandrowicz-Trzcinska M.

1 Brzeziecki B.

1 Drozdowski S.

1 Furgala-Seleziow G.

1 Jablonska B.

1 Jankun M.

1 Lewkowska A.

1 Skrzypczak A.

1 Woznicki P.

1 2017

1 2014

Wyniki wyszukiwania

Effects of different methods of site preparation on natural regeneration of Pinus sylvestris in Eastern Poland

Analysis of the visitor flow and forest education actions in Kudypy Forest District