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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Gradual transformation of Forest Plantations into Close-to-Nature Forests in NE Vietnam

Van Hung, Vu 18 January 2013 (has links)
No description available.
2

The role of the university forest enterprise of the Technical University in Zvolen

Parobeková, Zuzana, Saniga, Milan 03 June 2019 (has links)
The University Forest Enterprise (UFE) is a special-purpose facility at the Technical University in Zvolen (TUZVO). The UFE is aimed at the practical education of students, scientific research associated with all forestry activities, demonstration objects, and management of the forest fund. lt is thus possible to demonstrate several aspects of forestry such as forest management, management of forest reproductive material, silviculture, logging operations, forestry constructions and ameliorations, landscape management, game management, fishery, and beekeeping. To follow these goals, 67 permanent research plots, 18 temporary plots, and 103 demonstration objects are currently maintained at the territory of the enterprise, all connected to the network of excursion and demonstration paths. The UFE manages the forest land fund (9,729 ha) according to the needs of the Technical University, and with respect to the purpose of the enterprise, 80% of the forest area managed by the enterprise is classified into the category of specialpurpose forests. The forest land fund is composed of state-owned forest land as well as forest properties of other owners. Forest plant communities ofthe UFE belang to five altitudinal vegetation zones (298-1035 m above sea level). Broadleaved tree species evidently predominate. Due to the special focus of management, the UFE uses as much as possible the concepts of the close-to-nature silviculture. Due to varied natural conditions, it is possible to apply several silvicultural systems. The application of shelterwood and selection systems with maximum utilisation of the natural potential of indigenous tree species is strongly preferred.
3

Kommuninvånares behov av nyttjande till friluftsliv : En enkätundersökning i Kalmar län

Leth Nyberg, Bonny, Engberg, Malin January 2023 (has links)
Bakgrund: Kommuner och myndigheter jobbar idag med friluftsliv utifrån de 10 friluftsmålen. Friluftsplan eller översiktsplan är förekommande i flera kommuner i Sverige, däremot inte i den undersökta kommunen. Trots brist på en friluftsplan har den undersökta kommunen ett rikt friluftsliv som anses vara en viktig pelare i folkhälsoarbetet. Tidigare forskning visar på att friluftsliv främjar hälsan både psykiskt och fysiskt, även teorierna attention restoration theory (ART) och recreation opportunity spectrum (ROS) benämner naturen samt friluftsutövning som främjande för återhämtning. Syfte: Syftet med undersökningen var att kartlägga individers behov och intressen av nyttjande till friluftsliv på en kommunal nivå. Metod: Undersökningen genomfördes som en kvantitativ tvärsnittsstudie. Urvalet bestod av invånare i undersökt kommun med sju inkluderade orter samt två inkluderingskriterier, respondenterna behövde bo i undersökt kommun samt vara över 15 år. Utformad digital enkät bestod av 14 frågor och publicerades på digitala plattformar samt att informationsbrev placerades på fysiska anslagstavlor i den undersökta kommunen. Viktiga variabler i enkäten var orter samt åldersgrupper, varav orterna var en viktig faktor för att få svar på en av frågeställningarna, om intresset och behovet av nyttjande till friluftsliv skiljde sig.  Resultat: Totalt samlades 237 svar in och resultatet visade på att vandringsleder samt utegym var det som hade störst svarsfrekvens och behövs tillföras eller förbättras i kommunen. Det fanns störst avsaknad av toalett/utedass gällande friluftsservice och att vandringslederna i kommunen kunde förbättras genom bättre information på informationsskyltar samt förbättring av ledmarkeringar. Svaren skiljde sig mellan orterna i flera av frågorna men endast frågan gällande kommunens aktivitetsområde visade på en signifikant skillnad mellan invånare i de olika orterna varav i Ort1 hade procentmässigt positivare åsikter och bara invånare i Ort1 och Ort3 hade en åsikt av mycket dåligt. Konklusion: Respondenternas svar visar på ett stort intresse av ett ökat utbud av aktiviteter och faciliteter i kommunen vilket ger en grund till vad kommunen bör prioritera vid framtida planering. / Background: Municipalities and authorities today work with outdoor recreation based on the 10 outdoor goals. Outdoor plans or general plans are present in several municipalities in Sweden, but not in the investigated municipality. Despite the lack of an outdoor plan, the investigated municipality has a rich outdoor life which is considered an important pillar in the public health work. Previous research shows that outdoor life promotes health both mentally and physically, even the theories attention restoration theory (ART) and recreation opportunity spectrum (ROS) refer to nature and outdoor exercise as restorative. Purpose: The purpose of the study was to map out individual opinions and interest related to outdoor activity on a municipal level. Method: This study was conducted with a quantitative cross-sectional design. The sample of the study consisted of habitants in the investigated municipality with seven included towns and two inclusion criteria, the respondents had to live in the investigated municipality and be over 15 years old. The designed digital questionnaire consisted of 14 questions and was published on digital platforms and an information letter was placed on physical notice boards in the investigated municipality. Important variables in the study were towns and age groups, of which the towns were an important factor in getting answers to one of the questions, whether the interest and the need for use for outdoor life differed. Results: A total of 237 responses were collected and the results showed that hiking trails and outdoor gyms had the highest response frequency and needed to be added or improved in the municipality. There was a major lack of toilets regarding outdoor service and that the hiking trails in the municipality could be improved through better information on information signs and improvement of trail markings. The answers provided by the participants differed between the towns in several of the questions, but only the question regarding the municipality's area of activity showed a significant difference between habitants in the different towns, of which habitants in Town 1 had percentage-wise more positive opinions and only habitants in Town 1 and Town 3 had a very bad opinion. Conclusion: The responses provided by the participants demonstrate a strong interest in increasing the range of activities and facilities available within the municipality, which provides a basis for what the municipality should prioritize in future planning.
4

Revitalizace jezu ve Vranovicích na Svratce rybím přechodem / Revitalization of weir on Svratka river inVranovice with fish crossing

Jágr, Josef January 2012 (has links)
This present work deals with the design of revitalization measures for the weir in Uherčice (Vranovice) on the river Svratka. The current condition of weir constuction does not allow aquatic animals to migrate, weir constuction is transverse barrier. In this river section are found many fish species like barbel, vimba, nase and chub, for which is migration completely natural part of their behavior. There is concrete weir with a movable flap and on the right bank is located a small hydroelectric power plant. Close to hydroelectric power plant outlet is mouth of Šatava river. Weir revitalization consists of fish pass construction. Proposed fish pass is located on the right bank of the stream. There is a close-to-nature bypass channel that will ensure a continuity of water flow of already mentioned river Svratka between Věstonice lake and Rajhrad weir. Entrance to the fish pass will use a part of Šatava mount, then will continue in the artificial channel to the upstream part of Svratka river. Fish pass exit cannot breake the function of protective anti-flood embankment of Svratka river, hence there will be used block off construction. During condition of flooding will exist the possibility to shut down proposed fish pass.

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