Wyniki wyszukiwania - Biblioteka Nauki

1

Badania ankietowe dotyczace korzystania z leśnych map przez osoby pełniące różne funkcje w nadleśnictwach

100%

Węgiel A.

Roczniki Geomatyki

|

2006

|

tom T. 4, z. 4

193-204

EN

When designing various applications for forest numerical maps to be used in the forest districts offices of State Forests, it is important to take into consideration preferences of workers performing different functions in these offices. In order to gather information regarding the ways forest maps are used by various persons employed in forest district offices, a survey method was applied. In 2003, questionnaires comprising questions associated with the utilisation of 23 analogue maps were sent to all forest district offices in Poland. Replies in the form of filled questionnaires were received from 1813 persons from 183 forest district offices. The obtained information was fed into the computer data base and appropriate analyses were conducted to determine the profile of map users employed at different posts in the forest district offices. The majority of persons declared that maps of stands are used most frequently (Table 1). Apart from this map, the following four other types of maps were used: the economic-survey map of stands of the forest district range, the economic map, the economic-survey map of planned tending cuts in the forest district range and the territorial map of the range of activities of the given forest district range. The performed analyses allowed the authors to elaborate characteristics of individual users of forest maps. The prepared characteristics referred to the following 7 posts from forest district offices: head forester, deputy head forester, supervising engineer, specialist, forester, deputy forester, and forest guard (Table 2). The greatest number of questionnaires were submitted by foresters, specialists and deputy foresters. On the other hand, head foresters and their deputies and then supervising engineers used the greatest number of maps. The results of the analyses of ways of map utilisation are presented in Tables 3-9. The performed analyses revealed that the scope and method of map utilisation depend, to a considerable extent, on the position occupied by the user. Differences between individual users are very distinct and this fact should be taken into consideration in development of appropriate applications used in forest spatial information systems.

2

Wykorzystanie SIP w projekicie Retrouvance - Odkrywamy Lasy Rychtalskie

51%

Węgiel A. , Strzeliński P. , Rączka G.

Roczniki Geomatyki

|

2007

|

tom T. 5, z. 4

55-62

EN

Tourism and recreation may help in development of local communities, especially in regions without well developed industry and agriculture. An example of such an area are Rychtal Forests. However, there are barriers to overcome in order to benefit from tourism development in the Rychtal Forests. No valuation of these forests and other areas as regards their usefulness for tourism and recreation was made so far. There was no comprehensive inventory of places attractive for tourists. There is no necessary infrastructure (tourist routes, places for rest, accommodation base). A lot of institutions manage the region (12 local communities, 2 forest districts, an Experimental Forest District, a Promotional Forest Complex). There are no funds for development of infrastructure, investments in accommodation, promotion). The example of successful undertaking in the field of tourism on forested areas is French Project - Retrouvance. This is a program based on common values of forests and non-forested areas. It is a proposal of a week-long route. The aim of the route is to discover nature. Retrouvance is based on proper relationships between visitors and hosts. It respects natural environment. If it is possible, in the places designated for accommodation renewable energy sources and wooden objects are used and effective waste management is organized.. Following the example of Retrouvance, .Let us discover Rychtal Forests. project was implemented in 2005. The aim of the project is preserving cultural heritage of rural areas, participation in local development and high quality of tourist services with due respect to environment. The first stage of the project consisted in organizational and information activities. In the second stage initial valuation of areas was made by local communities and places attractive for tourists and existing tourist infrastructure were identified. The information was marked on maps. Information collected from individual local communities were elaborated in the form of GIS. A system covering the whole area of the Rychtal Forests was created based on GIS systems for forests in individual administrative units. Three categories of objects were created: natural, historical and elements of infrastructure. Individual points received identifiers and were linked with descriptive base. The next stage was data verification in the field according to strictly approved rules common for the whole area. Verification was made by forestry students during scientific camp. Each object was described by means of standard forms. Actions taken so far are only the initial stage of the project implementation. Next action will be to mark out tourist routes. GIS will be used for this purpose. Planned routes should avoid high-density housing, industrial areas, busy roads, railways, stores of waste, etc. Simultaneously, the routes should reach the most interesting places of the region. The final course of the routes has to be consulted with all institutions concerned. The routes should take into account existing and planned accommodation, which should be situated in such way that it would be possible to divide the route into one-day sections. The final stage will be working out detailed principles of cooperation of institutions, decision on necessary investments and collecting funds. Expected advantages from the project are, first of all, the following: development of the region, change of incomes structure in forests and an increase of public interest in forests.

3

Powiatowy program zwiększania lesistości Miasta Wrocławia - aspekty geomatyczne projektowania

51%

Rączka G. , Strzeliński P. , Węgiel A.

Roczniki Geomatyki

|

2007

|

tom T. 5, z. 4

43-48

EN

The National Programme for the Augmentation of Forest Cover elaborated in 1995 by a group of authors with Prof. B. Lonkiewicz as the editor provides the basis for afforestation activity in Poland. Its main task is to increase the forest cover to 30% by 2020 and 33% by 2050. Ecological and economic priorities together with tools for their implementation are also established in this document. With reference to the national programme the local programme for Wroclaw County has been elaborated as a result of this large city needs. Total area foreseen for afforestation for the years 2006.2028 is 1106 ha. In the first implementation phase (2006.2015) afforestation of 486 ha is planned and in the second phase (2016.2028) . 620 ha. Implementation of these tasks will increase the forest cover of the city from 7.7% in 2006 to 11.6% in 2028. The successive selection of parcels planned for afforestation has taken ecological, environmental, economic and city-planning aspects into consideration. The final choice was made with the use of modern methods of collecting, transforming and selecting data . GIS. Data from cadastre databases, air photos and orthophotomaps were used to verify the location of parcels with future forests and to sketch forest board line. The programme was adopted for implementation by the City Council in 2006 as a basis for local spatial planning. Now it is one of the most important urban development programmes in Wroclaw.

4

Element content of Scots pine (Pinus sylvestris L.) stands of different densities

51%

Skonieczna J. , Małek S. , Polowy K. , Węgiel A.

Drewno : prace naukowe, doniesienia, komunikaty

|

2014

|

tom vol. 57, nr 192

77--87

EN

Modern forestry management should be based on the principle of sustainability. In order to preserve habitat productivity, the amount of nutrients removed from the environment along with forestry products must be taken into consideration. This study shows the exact concentrations of chemical elements in different tree parts of Scots pine, growing on poor soils in north-western Poland. The observed values were compared to the values found in literature. In addition, the relationship between the concentrations of elements and stem diameter or stand density was researched. The highest concentration of chemical elements was observed in the needles (C, N, P, K, Mg, S, Mn, Na, Fe) and the lowest (C, N, P, S, Cu, Na, Ni, Pb, Zn, Fe) in the stem wood. Most of the macronutrients (P, K, Ca, Mg and S) reached optimal values, with the exception of N showing a deficiency, especially in the needles. The relationship between the content of elements and DBH or stand density was rather weak, and in both cases, negative.

5

Analiza wypełnienia leśnej przestrzeni na podstawie modeli typu CAD

45%

Chirrek M. , Strzeliński P. , Wencel A. , Sugiero D. , Węgiel A.

Roczniki Geomatyki

|

2008

|

tom T. 6, z. 4

27-34

EN

The filling of forest space should be defined by a set of synthetic indicators describing structural and dynamic features. The utilization of these indicators in forest sciences, such as forest management or forest nurcery could help in research of development processes in forests. This is necessary in planning the activity related to forest management and protection, in particular . to forest regeneration, maintenance and utilization. An attempt to analyze the filling of forest space was taken in 2007. The experimental material was collected from 50 circular test plots located in the community of fertile Carpathian beech forests in lower-mountain zone of Bieszczady National Park. The results of measurements were imported to AutoCAD 2007 software that was used for spatial analyses. The range of works in the field included measurements of many different structural features in all plant layers of the stand. Moreover, on all test plots azimuths of each tree, as well as distance from the center of the plot to all trees from old-tree layer were measured. These measurements were used for spatial analyses of the distribution of trees in forest space. Area of one tree is contained at a range of 7,69.50,00 m2 and on most test plots it did not deviate very much from the average value (18,13 m2). Average space of one tree amounted to 475,17 m3. On plots in the younger development phases, where there were more trees with small dimensions, value of space of one tree amounted to ca. 120 m3. Besides, random spatial type of distribution of trees dominated on most plots (72%) and not many cases pointed at group distribution. In this study, some indicators were suggested to make forest space characteristics possible. Determination of these parameters may serve analyses of the structure of forest space within the stand. In the future, the indicators can provide some important hints in forest silvicultural and management planning. Further research is needed related to spatial analysis in order to create the synthetic indicators describing structural and dynamic features of all types of stands.