Essays about: "vascular plants"

Showing result 31 - 35 of 62 essays containing the words vascular plants.

  1. 31. Shifts within the carbon cycle in response to the absence of keystone herbivore Ovibos moschatus in a high arctic mire

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Joel White; [2017]
    Keywords : vegetation; carbon; wetland.; methane; Arctic; Physical Geography Ecosystem Science; herbivory; Earth and Environmental Sciences;

    Abstract : Tundra ecosystems are generally recognized as globally important carbon sinks, yet the knowledge on threats to such ecosystems is narrow. Climate change is predicted to reduce the number of muskox (Ovibos moschatus) in the arctic, it is therefore essential to understand the effect herbivores induce on the arctic ecosystem. READ MORE

  3. 32. Semi-natural pastures in Scania: grazing and the support system

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Dan Gerell; [2016]
    Keywords : Biology and Life Sciences;

    Abstract : Semi-natural pastures are one of the most species-rich habitats found in Sweden and many endangered species are connected to them. Strongly declining in area, semi-natural pastures in Sweden can be eligible for financial support within the EU agri-environmental scheme. READ MORE

  4. 33. Kväverikt spillvatten från sprängämnesproduktion - Potentiell råvara i gödsel?

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Pia Sundvall; [2016]
    Keywords : kväve; ammonium; nitrat; gödsling; fertilizer; resursutnyttjande; sprängämnesrester; restprodukt; recirkulation; Nitrogen; Ammonium; Nitrate; fertilizer; resource; explosives; residue; recirculation;

    Abstract : Kväve är en av de mest begränsande faktorerna för tillväxt hos vaskulära växter och en viktig ingrediens i konstgödsel, som idag kommit att bli en förutsättning för höga skördenivåer inom jord- och skogsbruk. Att framställa reaktivt kväve för odling är en överlevnadsfaktor för människor världen över, men skapar inte bara tillväxt, utan rubbar också den naturliga kvävebalansen. READ MORE

  5. 34. Anthocyanins and their effects on blood pressure

    University essay from SLU/Dept. of Food Science

    Author : Martina Christerson; [2016]
    Keywords : anthocyanidins; anthocyanins; cardiovascular health; hypertension; blood pressure; NO;

    Abstract : Flavonoids, naturally occurring secondary metabolites in plants, have been associated with positive effects on high blood pressure (hypertension) which is one of the most important risk factors for cardiovascular disease. Anthocyanins, a subgroup of flavonoids, have in more recent years gained particular attention for its effects on blood pressure. READ MORE

  6. 35. Sources of organic carbon fueling carbon emissions from tropical reservoirs

    University essay from

    Author : Gabriella Villamor Saucedo; [2016]
    Keywords : tropical reservoirs; decomposition; autochthonous carbon; allochthonous carbon; tropical macrophytes; methanogenesis; tropiska vattenkraftsmagasin; metangasproduktion; autoktont OM; alloktont OM; tropiska makrofyter;

    Abstract : For a sustainable energy supply, it is of importance to be aware about the environmental impacts from the different energy sources. Hydroelectric reservoirs in tropical areas have been found to emit more greenhouse gases (GHG) than reservoirs from boreal regions. READ MORE