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EN
The aim of the study was to determine the effect of temperature and humidity on colonization of cambio− −xylophagous insects on Norway spruce branches in relation to the place and method of slash utilization. Analyzed branches were infested by eight species of cambiophagous and two species of cambioxylophagous, whereas the material utilization method does not substantially influence the entomofauna species composition. The most numerous were: Pityogenes chalcographus, Ips amitinus, Dryocoetes autographus and Pityophthorus pityographus. The branches treatment was a factor contributing significantly to the infestation intensity by P. chalcographus and I. amitinus, reaching a higher density of galleries on the branches spreading disorderly on the forest floor than collected in the piles. Moreover, it was found that the location of branches inside the pile determines their attractiveness to hygrophilous species with a minor economic importance. Significant differences in temperature and relative humidity inside the piles and the surrounding branches scattered disorderly on the surface during the growing season indicate that this may be an important factor influencing logging residues left in the forest infestation intensity by bark beetles.
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EN
Wpływ biomasy pochodzącej z resztek pozrę− bowych na właściwości gleb. Sylwan 164 (2): 110−117. DOI: https://doi.org/10.26202/sylwan.2019052. The aim of the study was to determine the effect of different management treatments of Norway spruce post−harvest logging residues on soil properties. The study compared the impact of residues chipping and arrangement into the stacks. The investigation was carried out in the Nowy Targ Forest District (southern Poland). 15 research plots were selected for the analysis (5 plots with wood chips, 5 with stacks and 5 control ones). In May 2018, on each research plot soil samples for laboratory analysis were collected from the surface horizon (0−10 cm depth). Basic properties (pH, carbon and nitrogen content, base cations content) and enzyme activity (dehydrogenase, urease and β−glucosidase) were determined. The obtained results confirm the influence of post−harvest logging residues management on soil properties. The significant differences in soil carbon content between soils of different plots variants were noted. Soils of research plots with wood chips and stacks were characterized by higher content of carbon compared to the control research plots. At the same time soils with post−harvest logging residues had a higher biochemical activity expressed by enzymatic activity. The nutrients released from decaying post−harvest loggingresidues stimulated the microbiological activity of the soils.
EN
Trypodendron laeve has a disjunctive distribution and was unknown until recently in most of Europe, where it is now considered by some sources to be an alien pest. The abundance of all four Trypodendron species in Europe (T. laeve, lineatum, domesticum, and signatum) was monitored with traps containing the aggregation pheromone lineatin, which attracts all four species, in 70- to 100-year-old Norway spruce stands in 10 study areas (seven in the Czech Republic and three in Poland). Pheromone-baited, black, window-slot traps (Theysohn, Germany) were deployed (1 to 5 per site) from mid-March/early-April to late-May/early-June. Three Trypodendron species were captured (20,040 beetles). T. lineatum was the most abundant (n = 16,922), followed by T. laeve (n = 2,686) and T. domesticum L.) (n = 432); T. signatum was not detected. T. laeve was detected in three of seven study areas in the Czech Republic over the 3 years of monitoring. Although T. laeve had been detected in Poland during preliminary monitoring in 1988, it was not detected in the three study areas in Poland in the current study. The abundances of T. laeve males and females did not significantly differ in the Czech Republic. The abundance of T. lineatum was correlated with the abundance of T. laeve in the same traps. Although T. laeve has an extensive distribution, its abundance is generally low. Because the species is widely distributed in Europe, there is no practical reason to consider it alien pest in this region.
EN
Trypodendron laeve has a disjunctive distribution and was unknown until recently in most of Europe, where it is now considered by some sources to be an alien pest. The abundance of all four Trypodendron species in Europe (T. laeve, lineatum, domesticum, and signatum) was monitored with traps containing the aggregation pheromone lineatin, which attracts all four species, in 70- to 100-year-old Norway spruce stands in 10 study areas (seven in the Czech Republic and three in Poland). Pheromone-baited, black, window-slot traps (Theysohn, Germany) were deployed (1 to 5 per site) from mid-March/early-April to late-May/early-June. Three Trypodendron species were captured (20,040 beetles). T. lineatum was the most abundant (n = 16,922), followed by T. laeve (n = 2,686) and T. domesticum (L.) (n = 432); T. signatum was not detected. T. laeve was detected in three of seven study areas in the Czech Republic over the 3 years of monitoring. Although T. laeve had been detected in Poland during preliminary monitoring in 1988, it was not detected in the three study areas in Poland in the current study. The abundances of T. laeve males and females did not significantly differ in the Czech Republic. The abundance of T. lineatum was correlated with the abundance of T. laeve in the same traps. Although T. laeve has an extensive distribution, its abundance is generally low. Because the species is widely distributed in Europe, there is no practical reason to consider it alien pest in this region.
PL
Publikacja stanowi przegląd metod zdalnego badania i detekcji obiektów, od etapu planowania misji fotolotniczej poprzez realizacje nalotu, sprawdzenie jakości wykonanych zdjęć do uzyskania teledetekcyjnych wskaźników roślinności i ich analizy. W niniejszej pracy opisano budowę platformy wielosensorowej zbudowanej na potrzeby projektu HESOFF. Przedstawiono potencjalne obszary zastosowania technik wielospektralnych oraz opisano metodykę zdalnego badania wybranych parametrów środowiska. W publikacji przestawiono główne założenia i wstępne wyniki projektu HESOFF oraz zaprezentowano koncepcje Systemu Informacji Przestrzennej stworzonego dla trzech obszarów badawczych.
EN
This paper is an overview of remote sensing methods including mission planning, flights over investigated area, quality evaluation of gathered images, and computing remote sensing indicators of investigated vegetation. In this paper description of the multisensory platform designed for the HESOFF project and preliminary project results is given. Potential applications of developed multisensory technology as well as remote sensing methodology of selected environment characteristics is also presented. We have also presented preliminary design of Geographic Information System for three investigated forest complexes.
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