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Showing items 1 through 9 of 190.
  1. Library Resource
    Journal Articles & Books
    December, 2007
    Hungary

    Ha a Magyarországon jelenleg tervezett összes bioetanol- és biodízel-üzem felépül,akkor kb. 2,6-3 millió tonna bioetanol és 400 ezer tonna biodízel előállítása váliklehetővé. Ez a mennyiség amellett, hogy jelentősen meghaladja a hazai 2010-es5,75%-os bekeverési arányhoz szükséges mennyiséget, inputigényét tekintve már középtávonis jelent_s importot tehet szükségessé. Ennek árfelhajtó hatása befolyásolhatjaegyrészt a biohajtóanyag-előállítás gazdaságosságát, másrészt az állattenyésztésbenés az élelmiszeriparban feszültségeket eredményezhet.

  2. Library Resource
    Policy Papers & Briefs
    December, 2007
    Ireland

    In this fourth Babcock Institute country study, Ireland's dairy industry was selected because (a) it reveals advantages and challenges associated with a pasture-based production system that is unique in the EU, (b) the country's dairy industry provides an excellent case study of the effects of milk production quotas, (c) the country's dairy sector faces challenges because of its dependence on exports, and (d) Ireland's dairy processors have made innovative use of joint ventures and foreign direct investment.

  3. Library Resource
    Journal Articles & Books
    December, 2007
    Ireland

    Following centuries of deforestation, Ireland has undergone a substantial afforestation programme in the last 40 years. This paper presents the results of a case study undertaken to examine local response to afforestation. The study is set in Arigna, a region in northwestern Ireland that has traditionally depended on agriculture but has experienced relatively high rates of afforestation in recent decades.

  4. Library Resource
    Journal Articles & Books
    December, 2007
    Hungary, Europe

    A térség területhasználatában jelentkező változások követték az országos és megyei módosulásokat, ami a szántó- és gyepterületek folyamatos csökkenésében fejeződik ki. Ugyanakkor a Szigetköz tájban az egyes területi egységek terület-használata eltérően alakult. A Szigetköz hidrológiai, biológiai, talajtani adottságainak tanulmányozása rávilágít arra, hogy a táj természeti adottságai kedveznek a gyepre alapozott ál-lati termék előállításnak.

  5. Library Resource
    Journal Articles & Books
    December, 2007
    Belgium, Europe

    Habitat loss and fragmentation are known to reduce patch sizes and increase their isolation, consequently leading to modifications in species richness and community structure. Calcareous grasslands are among the richest ecosystems in Europe for insect species. About 10% (1,150 ha) of the total area of a calcareous ridge region (Calestienne, Belgium) and its butterfly community was analysed over a timeframe of about 100 years.

  6. Library Resource
    Journal Articles & Books
    December, 2007
    Germany

    The amendment of the Renewable Energy Sources Act (EEG) in 2004 has established an attractive support of using renewable resources for energy production, which since then has fuelled a rapid expansion of the competitive cropping of energy maize. The regionalised agricultural sector model RAUMIS was applied to calculate expected energy maize production as well as impacts on agricultural land use, production and income. Accordingly, the energy maize acreage rises up to about 1.8 mill hectares in the long run leading to substantial land use changes.

  7. Library Resource
    Journal Articles & Books
    December, 2007
    Spain

    The magnitude of the environmental and social consequences of soil erosion and land degradation in semiarid areas of the Mediterranean region has long been recognized and studied. This paper investigates the interrelationship between land use/cover (LULC) changes and land degradation using remotely sensed and ancillary data for southeastern Spain.

  8. Library Resource
    Journal Articles & Books
    December, 2007
    Portugal

    Lack of tree regeneration and persistency of species-poor shrublands represent a growing problem across Mediterranean evergreen oak forests. What constrains forest regeneration is poorly understood, and restoration attempts have been largely unsuccessful. We assessed the contribution of four different mechanisms of tree recruitment limitation (that is, source, dispersal, germination, and establishment) in a cork oak (Quercus suber) system in southern Portugal.

  9. Library Resource
    Journal Articles & Books
    December, 2007
    France, Europe

    In this research, we propose a method for describing rural landscapes in peri urban areas and evaluating their impact on house and land prices. This method matches quantitative geography and econometric methods used for hedonic analysis. A geographical model is used for producing variables describing the landscape an observer can look at when located in a specific house or a land parcel. This model takes account of these parts of the landscape that are hidden by houses, buildings, hills, forests,. . .

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