Essays about: "fosfor"

Showing result 1 - 5 of 167 essays containing the word fosfor.

  1. 1. Högfrekventa mätningar med sensorer för transportberäkning av totalfosfor i vattendrag

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Nora Ottander; [2020]
    Keywords : turbiditet; fosfor; sensor; transportberäkning; övergödning;

    Abstract : Large areas in the Baltic Sea suffer from eutrophication, due to excessive input of nutrients, mostly nitrogen and phosphorus, from surrounding coasts. The transfer of phosphorus is mostly riverine. READ MORE

  2. 2. Multifunktionella skyddszoner : minskade fosforförluster, ökad pollinering och andra ekosystemtjänster

    University essay from SLU/Dept. of Soil and Environment

    Author : Kajsa Hillberg; [2020]
    Keywords : kantzoner; fosfor; avrinning; pollinerare;

    Abstract : Användningen av skyddszoner är en gammal metod för att förhindra att föroreningar och näringsämnen når vattendrag, sjöar och hav från jordbruksmark. Men dagens effektiviserade jordbruk innebär fler påfrestningar på miljö och klimat. Markanvändningen ska räcka till att både producera mat och uppnå flera ekosystemtjänster. READ MORE

  3. 3. The effect of Arbuscular mycorrhizal fungi and biostimulating algae extract on establishment, growth and development of Vitis vinifera : a field study conducted in Sweden

    University essay from SLU/Department of Biosystems and Technology (from 130101)

    Author : Hanna Silwer; [2020]
    Keywords : Arbuscular mycorrhiza; biostimulator; crop physiology; mineral fertilizers; precision farming; Vitis vinifera;

    Abstract : About 23% of total global net anthropogenic emissions of greenhouse gases (GHG) come from agricultural and forestry related activities. One of the largest contributors of GHG is the usage of nitrogen (N) and phosphorous (P) fertilizers, causing eutrophication and contributing to global warming. READ MORE

  4. 4. Nitrogen runoff, constructed wetlands and the effect on catch of fish in the Öresund strait

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Saga Hedstigen Sundblad; [2020]
    Keywords : seafloor oxygen demand; fish catch; constructed wetland; Earth and Environmental Sciences;

    Abstract : Eutrophication and low dissolved oxygen levels are spreading all over the world, causing changes in fish distribution and decline in fish abundance and catch of fish. This study assesses the current nitrogen (N) surface runoff to the Öresund strait, the seafloor oxygen demand it cause, the subsequent effect on fish catch, and the constructed wetland area needed to retain current N loads. READ MORE

  5. 5. A study of the stability of vitamin 25[OH]D2 and 25[OH]D3

    University essay from Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)

    Author : Anna Kellström; [2020]
    Keywords : Vitamin D; 25-hydroxyvitamin D; pre-analytical relevance; HPLC-MS MS; stable; freeze-thaw cycles; light sensitivity; quality assurance;

    Abstract : During the industrialization of the 19th century the negative health effects of vitamin D was discovered as children in the cities developed osteomalacia or more commonly known as rickets caused by vitamin D deficiency. Vitamin D is produced in the skin from 7-dehydrocholesterol during sun-exposure and enhances intestinal phosphor and calcium absorption thus enhancing the bone remodeling process. READ MORE