During 2017, the authors conducted an evaluation of so-called “veteran trees” in Warsaw — selected specimens with outstanding historical, landscape and natural values, but not taken under legal protection, situated within public space (streets, squares, public facilities) — as part of a pilot program for the Green Board of Warsaw. The following were examined: the condition of trees, the surrounding ground’s condition, spatial conditions. The presented results include an example of two locations — prestigious streets, on which legible systems of street tree plantings from the beginning of the 20th century have been preserved (Piękna Street, J. Ch. Szucha Avenue). The protection of old trees — living witnesses of history and the maintenance of the original spatial form — classic avenue arrangement in both cases are essential for preservation of the historical pre-war scenery of this part of Warsaw.

Jaki rodzaj współzależności łączy drzewa i grzyby oraz czy obie grupy organizmów mogą bez siebie przetrwać?

O zdanie w sprawie działań zmierzających do zwalczenia pojawu kornika w Puszczy Białowieskiej poprosiła specjalistów Polska Akademia Nauk. Czy ochrona tego lasu powinna polegać na ingerencji, czyli wycince i wywózce zarażonych drzew?

Badania słojów drzew są z powodzeniem prowadzone od XVIII w. Obecnie dostarczają informacji dotyczących zmian klimatycznych, szczególne zmian wilgotności i temperatury, jakie miały miejsce w ostatnim tysiącleciu.

The Bulletin of the Polish Academy of Sciences: Technical Sciences (Bull.Pol. Ac.: Tech.) is published bimonthly by the Division IV Engineering Sciences of the Polish Academy of Sciences, since the beginning of the existence of the PAS in 1952. The journal is peer‐reviewed and is published both in printed and electronic form. It is established for the publication of original high quality papers from multidisciplinary Engineering sciences with the following topics preferred: Artificial and Computational Intelligence, Biomedical Engineering and Biotechnology, Civil Engineering, Control, Informatics and Robotics, Electronics, Telecommunication and Optoelectronics, Mechanical and Aeronautical Engineering, Thermodynamics, Material Science and Nanotechnology, Power Systems and Power Electronics.

Journal Metrics: JCR Impact Factor 2018: 1.361, 5 Year Impact Factor: 1.323, SCImago Journal Rank (SJR) 2017: 0.319, Source Normalized Impact per Paper (SNIP) 2017: 1.005, CiteScore 2017: 1.27, The Polish Ministry of Science and Higher Education 2017: 25 points.

Abbreviations/Acronym: Journal citation: Bull. Pol. Ac.: Tech., ISO: Bull. Pol. Acad. Sci.-Tech. Sci., JCR Abbrev: B POL ACAD SCI-TECH Acronym in the Editorial System: BPASTS.

Sacred spaces in hospitals – chapels or sacred gardens, as places of peace and tranquility, address spiritual needs of the patients and their families. The paper examines the elements creating the phenomenon of sacrum in the composition of the historical Stummer`s hospital in Topoľčany. Today the historical hospital complex is not used for its former functions and the question is how to preserve the sacred phenomena in the context of its future new uses.

Fruit tree orchards were present in some public parks from the very beginning of their existence in the 19th century. Apart from the utilitarian role, in the 20th and 21st centuries, they also gained different ones: ornamental — on account of high aesthetic qualities of fruit trees in the flowering and fruit-bearing seasons, environmental and ecological — related to supporting biodiversity, cultural — in the context of memory of old forms of using rural and allotment gardens, social — as a space for leisure, and even therapeutic — as an element of hortitherapy. The growing popularity of orchards indicates a change in the trends in contemporary public parks development.

Polska rocznie emituje do atmosfery więcej CO2, niż mogłyby pochłonąć lasy pokrywające cały kraj.