U ovome radu opisan je prvi nalaz hrastove mrežaste stjenice (Corythuca arcuata) na području centralne Bosne, na dva lokaliteta. Kako je ovo prvi nalaz ove vrste na području Bosne i Hercegovine, potrebna su dodatna istraživanja biologije i štetnosti ovog insekta. Budući da je ovo strana i potencijalno invazivna vrsta, može se očekivati njeno širenje po teritoriji čitave Bosne i Hercegovine.
Utjecaj gljiva truležnica roda Heterobasidion i Armillaria na pojavu truleži na stablima obične smreke provedeno je na Šumskogospodarskom području “Gornjebosansko”, gospodarska jedinica “Gornja Stavnja”, odjeljenje 65. Utvrđivanje prisutnosti truleži vršeno je na srušenim stablima obične smreke na premjernim površinama koje su raspoređene u sistematski postavljenoj mreži 100 m x 100 m. Uzorci su prikupljeni sa tri mjesta na dijelu debla zahvaćenom procesom truleži (početak zone truleži, sredina i vršna zona truleži). Na mjestima uzorkovanja uzimani su kolutovi drva debljine 5 cm. Analize uzoraka su provedene u laboratorijima Šumarskog fakulteta Univerziteta u Sarajevu. Za izravnu izolaciju gljivične DNA su pripremljeni uzroci drva mase 10-20 mg. Za amplifikaciju ciljanog segmenta DNK korištene su tubice s pripremljenim reagensima, proizvod ReadyToGo PCR beads tvrtke Amersham, Bioscience. Za amplifikaciju ciljanog segmenta ITS regije za rod Heterobasidion su korišteni početnice MJ-F, MJ-R, KJ-F i KJ-R, pomoću kojih je utvrđena međuvrsna raznolikost (tablica 2). Za amplifikaciju ciljanog segmenta ITS regiona za rod Armillaria su korišteni početnice ITS-1 i ITS-4, pomoću kojih je utvrđena samo pripadnost rodu. Za međuvrsnu raznolikost je vršena amplifikacija ciljanog segmenta IGS regiona za rod Armillaria pomoću početnice LR12 i O-1, te razgradnja endonukleazom AluI (tablica 3). Uspješnost amplifikacije je provjerena elektroforezom na agaroznom gelu. Interpretacija profila je izvršena pomoću molekularnog markera poznate veličine (100 bp) (slika 1). Na osnovi provedenih istraživanja unutar istraživane sastojine utvrđeno je 9 stabala s gljivom H. parviporum, 2 stabla s gljivom A. ostoyae, 1 stablo s gljivom A. cepistipes, te 17 stabala čiju trulež su uzrokovale ostale gljive truležnice (tablica 4). Gljiva H. annosum je uspješno identificirana iz plodišta. Na osnovi svega navedenog, može se zaključiti da je molekularnim analizama moguće utvrđivati međuvrsnu raznolikost gljiva ova dva roda iz uzoraka drveta sa truleži i plodišta gljiva.
U okviru istraživanja analizirane se karakteristike grmova imele, a domaćin na kojemu je istraživana prisutnost imele i njene osnovne karakteristike je crni bor (Pinus nigra). Na borovima se javlja posebna podvrsta bijele imele, borova imela Viscum album subsp. austriacum. Lokacija istraživanja je koncentrirana na borove kulture u mjestu Ovčari, nedaleko od Konjica. Imela na boru smatra se jednim od glavnih predisponirajućih čimbenika za njihovo sušenje. Uzorak istraživanja je sačinjavao 120 stabala crnoga bora koja su odabrana za analizu. Stabla su odabrana, tako da se obuhvati što više različitih ekspozicija na terenu. Na ukupno 20% stabala crnog bora ustanovljena je prisutnost borove imele.
UDK: 630*23:582.475(234.422 Bjelašnica) This document includes research in regeneration of fir in differently structured stands of beech and fir forests (with spruce) on mountain Bjelašnica near Sarajevo. Analysis of fir regeneration in differently structured stands was done by comparison of numbers of units of young fir, per growth category, and by total number of young fir at canopy density degree of 0.7 (0.60 – 0.79) and 0.9 (0.80 – 1.00), and by mixture ratio – share of fir (spruce) 0.7 (60 – 79 %) and 0.9 (80 – 100 %). Comparisons were done between virgin forest stands of beech and fir (with spruce) on ‘Ravnavala’, than, two-storied stand where we recorded transition of tree species (beech is dominant in upper growth, while fir is mainly dominant in young growth) on location ‘Medvjeđalokva’ and stands of typical uneven aged production forest of beech and fir (with spruce) in direct vicinity of virgin forest stand. Data gathering was done using total measurement method on permanent experimental plots of 1ha in virgin forest stand and two-storied stand on location ‘Medvjeđalokva’ and on circular plots in diameter of 12.62 m. Positions of circular experimental plots were determined by systematic sample in form of grid on intersections of Gauss-Krueger system, in intervals of 100 meters. Grid is laid in three transects of 27 plots each that is spread across forest compartments number: 111, 113, 114 and 115 of Management unit „Igman“, location ‘Ravnavala’. We have placed two experimental square plots of 1ha; one in virgin forest reservation ‘Ravnavala’ for preservation of assortment, status without human impact (compartment 106, MU „Igman“), and the other in management forest of this area “Medvjeđalokva” (compartment 117, MU „Igman”) for specific structure of assortment. Square 1ha plots were divided by grid of squares 10 x 10 m into 100 small plots.
UDK: 630*43(497.6 Konjic)“2009/2013“ Forests as one of the largest renewable sources in nature, are extremely important for human survival. They cover about a quarter of the Earth's surface and are the lungs of all living beings. Rapid technological development has significantly improved the life of a man, but also made a great contribution to the destruction of the natural balance, and reducing biodiversity. They represent a significant social wealth not only by producing precious and for its quality values in many ways irreplaceable wood material, edible and medicinal plants, but also because its existence is a very positive impact on the protection and improvement of the environment, regulation of climate and water regime, reducing damage from erosion, flood and spate, development of recreation, tourism, hunting and many other economic activities. Fires are one of the strongest and most dangerous agents that man were served in suppressing forest since ancient times, but unfortunately still used today. In many parts of world man suppresses forest and brush with fires, creating a short-term favorable conditions for its economy. Research that are the subject of this paper is an analysis of the volume of forest fires in the period 2009-2013 year in the municipality of Konjic. The conducted analysis in this area in the period 2009-2013 year recorded 37 fires. Of that number, 20 fires were in the category of crown-fires and 17 ground-fires. The largest number of fires was 14 in 2011, with 310 hectares of fire-affected areas, while the lowest number was recorded in 2010, only three fires and burnt area amounted to 7 ha.
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