142 research outputs found
A világ természetvédelmének története 1956 és 1960 között (védett területek alapítása)
No full textWe continue the history of establishing nature conservation areas with the overview of the 5 years between 1956 and 1960. All data in the article belong to nature conservation areas classified by the IUCN. According to this database the most areas in number were established in Estonia, all of them belonged to protected natural monument. Most of the areas belong to category III (natural monument) but there were 107 different national categories among the designated areas in this period. 12 of the Hungarian protected areas were included on the IUCN list, all of them belongs to the category of nature conservation area. We can state that compared to the previous five years the number of established protected areas grew again between 1956 and 1960. Between 1951 and 19755 there were 791 while between 1956 and 1960 there were 1553 new area established.A védett területek alapításának történetét az 1956 és 1960 között eltelt öt év áttekintésével folytatjuk. A cikkben közölt minden adat az IUCN kategóriarendszerébe sorolt védett területekre vonatkozik. Az IUCN adatbázisa szerint a legtöbb területet Észtország alapította, melyek mindegyike védett természeti emlék volt. A területek többsége a III-as IUCN kategóriába tartozik (nemzeti emlékmű), de 107 különböző nemzeti kategóriával is találkozhatunk a kijelölt területek között. Magyarországról 12 védett természeti terület került fel az IUCN listájára, melyek mindegyike a természetvédelmi terület kategóriába tartozik. Megállapíthatjuk, hogy az előző öt évhez képest 1956 és 1960 között ismét növekedett az alapított védett területek száma, míg az előző öt évben 791-et, addig 1956 és 1960 között 1553-at alapítottak
Soil Water Erosion
No full textThe purpose of this book is to provide novel results related to soil water erosion that could help landowners and land-users, farmers, politicians, and other representatives of our global society to protect and, if possible, improve the quality and quantity of our precious soil resources. Published papers on the topics are related to new ways of mapping, maps with more detailed input data, maps about areas that have never been mapped before, sediment yield estimations, modelling sheets and gully erosion, USLE models, RUSLE models, dams which stop sediment runoff, sediment influx, solute transport, soil detachment capacities, badland morphology, freeze-thaw cycles, armed conflicts, use of rainfall simulators, rainfall erosivity, soil erodibility, etc
Magyarországi vizesélőhely-rekonstrukciók természetvédelmi jelentősége madártani szempontból
No full textAz Élhető Vidékért 2010 : Természeti erőforrásaink a globális környezeti folyamatok tükrében
No full textSoil Water Erosion
No full textSoil erosion by water is considered to be one of the major forms of soil degradation (other than soil erosion by wind, acidification, salinization, desertification, etc [...
PECSRL 2016 Konferencia: „Mountains, uplands, lowlands. European landscapes from an altitudinal perspective”
No full textEffects of Grazing on Water Erosion, Compaction and Infiltration on Grasslands
No full textSeventy-seven percent of all agricultural land is related to livestock, meat and dairy, including grazing land and arable fields used for animal feed production. The effect of livestock on the natural environment is well documented. Many types of research describe these effects on biodiversity. The surface runoff and soil erosion on grasslands and pastures are investigated with smaller intensity since grasslands are one of the two major land uses that are considered as natural or at least semi-natural lands. Still, mainly due to overuse, grazing on sloping pasture lands can cause severe soil damage, the trampling can cause compaction, compaction decrease infiltration and thus increase runoff and, consequently, soil loss. There are several consequences of the grazing pressure that cause water erosion and surface runoff above the acceptable limit, such as a dramatic decrease in grass densities and/or above-ground bio-mass, compaction, animal tracks, etc. Related research started as early as 1911 and continues until today. There are several methods to analyse the consequences of grazing pressure, e.g., in situ rainfall simulations, infiltration and soil resilience measurements, modelling of runoff, soil loss and infiltration, calculation of ecological costs, etc. Furthermore, most importantly, scientists are investigating the possibilities for improvement of the achieved unstable grazing system due to bad management. Numerous publications have been publishing results on positive changes with the removal of grazing livestock from the grasslands. However, since the socio-economic situation is changing on Earth, more people requiring the products of the pastures, an optimal grazing solution is greatly needed. One of the solutions can be the planning of the optimal animal unit per area, based on the expected grass yields. However, due to the big differences in yields, caused by the greatly unreliable weather, the solution for the future must be a multifunctional agriculture and a flexible land use
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