Szerző szerinti böngészés "Wagenhoffer, Zsombor"
Megjelenítve 1 - 9 (Összesen 9)
Találat egy oldalon
Rendezési lehetőségek
Tétel Szabadon hozzáférhető Comparison of vegetation of Hungarian Grey Cattle and Hungarian water buffalo pastures in a sample area of the Danube-Tisza Interfluve(2023-06-15) Penksza, Károly; Péter, Norbert; Fűrész, Attila; Saláta-Falusi, Eszter; Szentes, Szilárd; Penksza, Péter; Wagenhoffer, Zsombor; Penksza, KárolyIn the present study, we aimed to investigate the coenology of the Kelemen-szék in the Kiskunság National Park. The coenological studies were carried out twice. We compared areas with different vegetation types. During these two surveys, we examined in total 90 quadrats of mixed grazed and fenced control areas. Ones were grazed by Hungarian domestic buffalo and Hungarian grey cattle and others were no grazed. Based on these surveys, it is possible to conclude about spatial and temporal changes in vegetation as a result of livestock husbandry in the area. Due to the size and heterogeneity of the studied area, we intended to investigate small homogeneous areas and respective control areas. Coenological surveys were done on lower and higher lying pastures, saline soil areas and loess areas. In the study plots, grazing led to stability in the species composition of loess grassland and saline grassland, so that they also satisfy the requirements moof nature conservation. The dominant and character species of the associations, and the typical species of the genus Festuca have a significant cover value. The dense and tall Puccinellia swards require more attention, because they are more vulnerable against grazing. Grazing and extensive livestock husbandry, which can be applied in the future, is a suitable method for the management of lowland areas. In order to conserve the associations, preservation of grazing is necessary. To provide amount of biomass of areas, the grazing has a significant role. The conservation of native loess grasslands, even in the form of fragments, plays an outstanding function. Hence, based on the initial surveys, the combination of Hungarian grey cattle and water buffalo is beneficial in terms of nature conservation.Tétel Szabadon hozzáférhető Grasslands restoration opportunities in different habitats, with different grazing animals. Overview case studies I: wooded pastures, deforestation: Áttekintő esettanulmányok I: fás legelők, erdőirtások(2025-01-19) Saláta, Dénes; Szentes, Szilárd; Kevi, Andrea; Balogh, Dániel; Turcsanyi-Jardi, Ildiko; Szabó-Szöllősi, Tünde; Wagenhoffer, Zsombor; Sipos, László; Salata-Falusi, Eszter; Stilling, Ferenc; Penksza, Péter; Fintha, Gabriella; Póti, Péter; Fűrész, Attila; Pajor, Ferenc; Balogh, Petra; Penksza, KárolySince 1992, data on the vegetation of the various grasslands in the country have been collected continuously and in recent years the vegetation of these areas has been surveyed repeatedly to monitor changes. Our aim has been to identify the conservation values and grassland management values of grasslands grazed by different animals, grasslands and wooded pastures that have been planted or restored. In the Pannonian region, we have also carried out studies in lowland mid-range, hilly areas. Areas grazed by horses, Hungarian grey cattle, sheep, goats and domestic water buffalo. The results of grazing with different animals at several study sites have been monitored and have been continuously monitored since 1994. In this paper, a brief overview of the results of the conversion of wooded pastures and deforested areas to pasture is presented. Results from three wooded pastures and one shrubland are summarised. Results from Hungarian grey cattle sheep and Hungarian domestic buffalo pasture are summarised. In all areas, grazing was successful in maintaining habitats. The maintenance of the scrub area and the preservation of its mosaicity were best ensured in the Hungarian grey cattle pasture. Sheep were responsible for maintaining the grassland vegetation. Water buffaloes ensured the maintenance of the pasture.Tétel Szabadon hozzáférhető Grasslands restoration opportunities in different habitats, with different grazing animals: Overview case studies II: Goat pastures(2025-12-20) Balogh, Daniel; Penksza, Karoly; Pajor, Ferenc; Stilling, Ferenc; Hajnaczki, Sandor; Wagenhoffer, Zsombor; Turcsanyi-Jardi, Ildiko; Szabo-Szollosi, Tunde; Fintha, Gabriella; Salata-Falusi, Eszter; Balogh, Janos; Penksza, Peter; Poti, Peter; Salata, Denes; Balogh, Petra; Szentes, SzilardIn this summary overview, we present the findings of phytosociological surveys conducted in vegetation types subjected to goat grazing—excluding the control meadows—across seven different study sites in addition to four settlements located in Transdanubia and the North Hungarian Mountains. The areas are also evaluated from a grassland management perspective. Furthermore, we explored the potential use of two invasive species ( Solidago gigantea and Calamagrostis epigeios ) as goat fodder, and we included a mown meadow as a control. The primary aim was to assess the species richness and ecological value of these areas under varying levels of grazing pressure and grassland management strategies, particularly in terms of conservation and pasture use. The most degraded plant communities were observed in Nagyréde and Kaposdada, where overgrazing had occurred. This was evident in species composition, as these areas were the least species-rich and showed significant infestation by ruderal species. In contrast, the most favorable outcomes—both for conservation and for grassland management—were found in sites that were initially mown and subsequently grazed by goats. The results suggest that vegetation types developed under light grazing pressure were more beneficial from a grazing perspective. Overall, the study indicates that a combination of light grazing and mowing is the most suitable management approach for maintaining and utilizing these semi-dry grasslands sustainably. Additionally, both invasive species may have potential for use as fodder when harvested at appropriate phenological stages and supplemented with additional feed, although not for meat production purposes. In this summary overview, we present the findings of phytosociological surveys conducted in vegetation types subjected to goat grazing—excluding the control meadows—across seven different study sites in addition to four settlements located in Transdanubia and the North Hungarian Mountains. The areas are also evaluated from a grassland management perspective. Furthermore, we explored the potential use of two invasive species ( Solidago gigantea and Calamagrostis epigeios ) as goat fodder, and we included a mown meadow as a control. The primary aim was to assess the species richness and ecological value of these areas under varying levels of grazing pressure and grassland management strategies, particularly in terms of conservation and pasture use. The most degraded plant communities were observed in Nagyréde and Kaposdada, where overgrazing had occurred. This was evident in species composition, as these areas were the least species-rich and showed significant infestation by ruderal species. In contrast, the most favorable outcomes—both for conservation and for grassland management—were found in sites that were initially mown and subsequently grazed by goats. The results suggest that vegetation types developed under light grazing pressure were more beneficial from a grazing perspective. Overall, the study indicates that a combination of light grazing and mowing is the most suitable management approach for maintaining and utilizing these semi-dry grasslands sustainably. Additionally, both invasive species may have potential for use as fodder when harvested at appropriate phenological stages and supplemented with additional feed, although not for meat production purposes.Tétel Szabadon hozzáférhető Grasslands restoration opportunities in different habitats, with different grazing animals: Overview case studies III: Sheep pastures(2025-12-20) Penksza, Karoly; Pajor, Ferenc; Wagenhoffer, Zsombor; Szabo-Szollosi, Tunde; Salata-Falusi, Eszter; Sari, Leonard; Balogh, Janos; Szoke, Peter; Penksza, Peter; Poti, Peter; Salata, Denes; Balogh, Petra; Vitasović-Kosić, Ivana; Szentes, SzilardFrom a land-use perspective, sheep grazing is primarily justified on sites of lower soil productivity. This is due to the grazing behaviour of sheep, characterised by selective feeding and close cropping. Such grazing promotes the development of a diverse vegetation structure, which is of high conservation value. However, under prolonged overgrazing, undesirable plant species may proliferate within the sward. The present review seeks to identify, in general terms, which species tend to become dominant on sheep pastures and which species are likely to spread under intensive grazing. Investigations carried out across several Hungarian landscape types yielded comparable results. Under high grazing pressure, Lolium perenne , Cynodon dactylon and Hordeum hystrix typically became dominant. By contrast, under low grazing pressure, Festuca pseudovina was generally found to prevail.Tétel Szabadon hozzáférhető Gyepgazdálkodási fogalomtár 1. rész A gyep és néhány hozzá kapcsolódó fogalom meghatározása(2024-07-08) Szentes, Szilárd; Bajnok, Márta; Wagenhoffer, Zsombor; Lepossa, Anita; Pólyáné Hanusz, Borbála; Tasi, JuliannaThe definition of the terms related to swards used in support systems in grassland management, or used in the nomenclature of land cover data generated during remote sensing activities, is currently unclear and often inaccurate. It is necessary to define these terms in agricultural context, as well as to standardize the different formulations currently in use. This glossary made by the academic members of MÁSZ Grassland Management Working Group, helps to clarify concepts.Tétel Szabadon hozzáférhető A házi vízibivaly (Bubalus bubalis) legeltetés, mint élőhelykezelési és inváziós fajok elleni alkalmazási lehetőség(2023-06-15) Penksza, Károly; Fűrész, Attila; Szentes, Szilárd; Wagenhoffer, Zsombor; Viszló, Levente; Szalai, Ferenc; Fintha, Gabriella; Penksza, Péter; Turcsányi-Járdi, Ildikó; Bajnok, Márta; Tasi, Julianna; Sipos, László; Penksza, KárolyIn nature conservation, the aggressive expansion of invasive plant species and the preservation of valuable grasslands are a global problem. Based on this, the following question can be formulated: which animal species and breeds are suitable for habitat management? Is the water buffalo suitable for lawn care and to what extent? With the overview work, we review the results so far, highlighting domestic areas where we already have preliminary results and where previous data have already been produced. Based on this, the invasive Solidago was completely suppressed in the marshes of the Zámolyi basin, the pasture was completely transformed, and the dominant species became Sesleria uliginosa . Also in the area of the Zámolyi basin, there were significant floristic and physiognomic differences in the vegetation. You may find that buffalo grazing is a suitable habitat management method in both dry grassland and wet grassland. Therefore, in addition to being effective in the control of Solidago gigantea, grazing with buffaloes is successful both in terms of nature conservation and grassland vegetation from an economic point of view. The first stage of the long-term planned work is an overview of the work on the water buffalo. The research is supported by the creation of Innovation operational groups and the investment necessary for the implementation of the innovative project. call for tenders (VP3-16.1.1-4.1.5-4.2.1-4.2.2-8.1.1-8.2.1-8.3.1-8.5.1-8.5.2-8.6.1-17) and the Innovation and the New National Excellence Program of the Ministry of Technology code number ÚNKP-22-3-I-MATE/2 was supported by the grant funded by the National Research, Development and Innovation Fund and grant AKGF-119-1-202.Tétel Korlátozottan hozzáférhető Húshasznosítású magyar tarka tehenek küllemi bírálati eredményei: 2. Populációgenetikai paraméterek, tenyészértékek, trendekBene, Szabolcs; Faludi, Gergely; Benedek, zsuzsanna; Wagenhoffer, Zsombor; Húth, Balázs; Füller, Imre; Polgár, J. Péter; PhD hallgató; egyetemi oktató, kutatóA Szerzők a Magyartarka Tenyésztők Egyesületének adatbázisát felhasználva 16 küllemi értékmérő tulajdonságban fenotípusos és genetikai trendeket, néhány populációgenetikai paramétert, valamint a tenyészbikák tenyészértékét becsülték meg. A trendszámításokhoz egytényezős lineáris regresszió analízist, a populációgenetikai paraméterek meghatározásához, valamint a tenyészértékbecsléshez különböző BLUP modelleket használtak. A munka során a küllemi tulajdonságok öröklődhetősége meglehetősen gyengének bizonyult (h2 = 0,01-0,19). A két különböző BLUP modellel becsült po-pulációgenetikai paraméterek között számottevő különbség nem mutatkozott. Az apák ugyanazon tulajdonságra becsült tenyészértéke között egyes tulajdonságok esetén nagyobb, más tulajdonságok esetén kisebb különbségeket találtak. Az apa- és az egyedmodellel becsült tenyészértékek között abszolút értékben számottevő eltérések voltak megfigyelhetők. A két modellel felállított apák közötti rangsor kevésbé változott, amit a szoros rangkorrelációs értékek is alátámasztottak. A fenotípusos trendszámítás alapján a küllemi tulajdonságok változásának a trendjét statisztikai értelemben igazolni tudták. Ezzel szemben a genetikai trendek a felhasznált apaállatok minőségének, tenyészértékének a stabilitását mutatták. Az eredmények alapján kijelenthető, hogy a magyar tarka tehenek küllemi tulajdonságai az elmúlt időszakban számottevő mértékben változtak.Tétel Szabadon hozzáférhető Nedves fekvésű magyar szürke szarvasmarha-legelő produkciójának és beltartalmi értékeinek havi változása és összefüggése a fajgazdagsággal(2023-06-15) Szentes, Szilárd; Fűrész, Attila; Wagenhoffer, Zsombor; Penksza, KárolyGrassland management tests were performed on different grazing loaded gray cattle pasture and hayland areas 4 times (April, May, June, September) during the grazing season in Tapolca-basin. 5-5 pieces of 2×2 m samples were examined on each sample area, prepared according to the Braun-Blanquet method (1964) in April, May, June and September and with this, we also measured the amount of biomass and its content. Based on results additional pasture had the largest gazing livestock carrying capacity but it had the weakest feed quality as well. During grazing season due to ongoing livestock grazing, species composition has changed the most in case of pasture and the number of species was the greatest here as well. Proportion of grasses declined in parallel with the amount of legumes, which grown till late summer. Nutrient content of pasture forage was the most appropriate because of high crude protein and less crude fiber content. Grazing for 34 days/year was not enough in case of additional pasture where Festuca arundinacea had the largest coverage. This is reflected in low number of species richness and small nutritional values of sample areas. For sedge rich low-lying areas mowing utilization is the most effective.Tétel Szabadon hozzáférhető Szemléletváltás a gyepelemzésben, háromdimenziós termésbecslési és minősítési módszer - Előtanulmány(2024-01-01) Szentes, Szilárd; Wagenhoffer, Zsombor; Tasi, Julianna; Penksza, Károly; Bajnok, MártaFrom the point of view of the lawns' current existence, use and their existence for the future, but the tasks, goals and challenges of grassland management have changed, and in line with this, we have carried out surveys and developed and modified a method for fast and efficient application. In practice, it is very important to know the quantitative and qualitative characteristics of the forage found in the pasture, as well as the exact economic value of the pasture. The purpose of this study is to present a cheap, fast, reliable and easy-to-apply estimation method. We took the previous methods into account and corrected and further developed them with the help of recent lawn management research results. Based on our tests, the corrected Balázs method can be used well to estimate the yield of grasslands and to determine the fodder value of the grassland. This method is cheap and requires no technical background. It also has the advantage, based on experience, that it takes into account the preference of species by animals. The data from the cenological survey and the height measurement of the plant stock can be used to estimate the yield, fodder value and economic value. Being a non-destructive method involving minimal trampling, it is also particularly suitable for monitoring the grassland habitat of protected plants and animals. The method is also presented on a sample example, which proves its applicability.