Sökning: "macrophyte"

Visar resultat 1 - 5 av 21 avhandlingar innehållade ordet macrophyte.

  1. 1. Gradients of time and complexity : understanding how riparian and instream ecosystems recover after stream restoration

    Författare :Eliza Maher Hasselquist; Christer Nilsson; Stewart Rood; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bioassessment; biodiversity; boreal; bryophyte; chronosequence; complexity; diatom; geomorphology; habitat heterogeneity; hydromorphological; macroinvertebrate; macrophyte; nitrogen cycling; river restoration; riparian buffer; stable isotopes; succession; Sweden; Environmental Science; miljövetenskap;

    Sammanfattning : Why evaluations of the ecological outcomes of stream and river restoration have largely reported inconclusive or negative results has been the subject of much debate over the last decade or more. Understanding the reasons behind the lack of positive results is important for bettering future restoration efforts and setting realistic expectations for restoration outcomes. LÄS MER

  3. 2. ARSENIC REMOVAL BY PHYTOFILTRATION AND SILICON TREATMENT : A POTENTIAL SOLUTION FOR LOWERING ARSENIC CONCENTRATIONS IN FOOD CROPS

    Författare :Arifin Sandhi; Gunnar Jacks; Gunno Renman; Maria Greger; Roger Herbert; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; aquatic moss; grain; rice; lettuce; macrophyte; phytoremediation; speciation; temperature; oxygenation; wetland.; Land and Water Resources Engineering; Mark- och vattenteknik;

    Sammanfattning : Use of arsenic-rich groundwater for crop irrigation can increase the arsenic (As) content in food crops and act as a carcinogen, compromising human health. Using aquatic plant based phytofiltration is a potential eco-technique for removing arsenic from water. LÄS MER

  4. 3. Ecology of the hydrolittoral macrophyte communities in Lake Kariba, Zimbabwe

    Författare :Cecil Machena; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 4. Regulation and role of epiphytic nitrification and denitrification in macrophyte-dominated systems

    Författare :Peder Eriksson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; marine biology; Hydrobiology; submerged; emergent; epiphyton; bacteria; nitrate; wetland; nitrogen; littoral; aquatic ecology; limnology; Marinbiologi; limnologi; akvatisk ekologi;

    Sammanfattning : This thesis examines mechanisms regulating bacterial nitrification and denitrification in attached microbial communities on surfaces of aquatic macrophytes. It also evaluates the role of epiphytic nitrification and denitrification for the nitrogen turnover in macrophyte-dominated nutrient-rich freshwaters. LÄS MER

  7. 5. Growth strategy and plastic allocation patterns in the acid-tolerant macrophyte, Juncus bulbosus L

    Författare :Maria Svedäng; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER