Sökning: "plant nutrient status"

Visar resultat 16 - 20 av 34 avhandlingar innehållade orden plant nutrient status.

  1. 16. Baltic shore-lands facing climate change

    Författare :Alma Strandmark; Sara Cousins; Martin Entling; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arthropod diversity; Baltic shores; Beetles; Climate change; Energy flows; Marine inflow; Sea level rise; Shore ecosystems; Species distribution; Spiders; Plant Ecology; växtekologi;

    Sammanfattning : This thesis provides new insight concerning drivers behind differences in arthropod diversity and abundance in Baltic shore ecosystems and how the arthropod communities might be affected when the conditions in the Baltic Sea are altered due to climate change.  The focus has been on climate related changes that are unique for coastal ecosystems, especially sea level rise and changes in the inflow of marine nutrients. LÄS MER

  3. 17. External Mycelia of Mycorrhizal Fungi - responses to elevated N in forest ecosystems

    Författare :Lars Ola Nilsson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ericoid; arbuscular; mycorrhiza; nitrogen; deposition; fertilisation; nitrate leaching; retention; field; forest; Quercus; deciduous; Plant ecology; Växtekologi; mykologi; virologi; bakteriologi; mycology; Microbiology; External mycelia; ectomycorrhiza; Mikrobiologi; bacteriology; virology;

    Sammanfattning : Most plants live in symbiosis with mycorrhizal fungi. Mycorrhizal roots constitute the interface between the plant and the soil, and almost every fine root of forest trees in nitrogen-limited boreal and temperate forests is colonised by ectomycorrhizal (EM) fungi. LÄS MER

  4. 18. Wild vegetables and micronutrient nutrition : Studies on the significance of wild vegetables in women's diets in Vietnam

    Författare :Britta M. Ogle; Uppsala universitet; []
    Nyckelord :Medical sciences; Edible wild plants; gathered vegetables; Vietnam; micronutrients; rapid appraisal; dietary assessment; nutrition status; chemical analysis; food diversity; folate; medicinal foods; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Nutrition; näringslära;

    Sammanfattning : The principal aim has been to investigate the contemporary role and importance of edible wild plants in the diets of women in different agro-ecological regions of Vietnam. Field studies were undertaken in four villages in the Mekong Delta (MD) and the Central Highlands (CH) in 1995-1999. LÄS MER

  5. 19. Studies of the physiological status of bacteria used for environmental applications

    Författare :Ninwe Maraha; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Today, it is difficult to study the physiological status of inoculants in complex environments, such as soil. In this thesis, we describe the combined use of marker genes and viability stains to determine the physiological status of the bacterial cells in pure cultures and in soil. LÄS MER

  7. 20. Plant ecological studies related to restoration of a degraded ecosystem in central Tanzania

    Författare :Shadrack Eliapenda; Ingvar Backéus; Karin Bengtsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Conservation; land degradation; population growth rate; population structure; regeneration; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; Ecological Botany; Ekologisk botanik;

    Sammanfattning : Kondoa Irangi area is among the most degraded ecosystems in Central Tanzania as a result of heavygrazing, fire, collection of fuelwood and improper cultivation practices. The restoration process of thisdegraded ecosystem through natural regeneration is slowed by the semi-arid climate of the area combinedwith poor soil nutrient status. LÄS MER