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The aim of the study was to compare the growth of plantations established with manual and mechanical methods using planting material of various age. The experiment was established in 2000, in the Góra Śląska Forest District (W Poland) on a former farmland. One− and two−years−old Scots pine seedlings were used. Applied planting methods included: conventional planting bar, German Huff's dibble, trowel,...
Sustainable development and afforestation measures aiming to preserve the leading role of the forests are important elements of spatial, environmental and economic policies. The economic efficiency of afforestation schemes covering arable and other types of land was evaluated in view of the policies aiming to increase the afforestation rate and improve the land−use structure in the rural areas. The...
The aim of the paper is to present the status of the implementation of the National Program of the Forest Cover Extension (KPZL) in the period 1995−2013, and analyse the results of the survey on the major factors limiting the Program's execution after Poland entered the European Union in 2004. The study is based on the official statistical data and a mail questionnaire survey carried out in all local...
Celem pracy było określenie zdrowotności wybranych drzewostanów sosnowych Nadleśnictwa Szczecinek. Obserwacje zostały przeprowadzone w 2014r. na 15 stałych powierzchniach badawczych, zlokalizowanych na dwóch typach siedliskowych lasu (BMśw oraz LMśw) na gruntach leśnych oraz porolnych, reprezentujących klasy wieku od II do VI. Ocena stopnia uszkodzenia koron drzew została przeprowadzona na podstawie...
The study describes allometric relationships between stand density and tree dimensions in birch stands on post−agricultural lands. The research material consisted of measurements carried out on 120 sample plots located in birch stands on post−agricultural lands of Central Poland. The investigated relationship was analyzed using ordinary least squares (OLS), dynamical formulation of allometric function...
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