Essays about: "Height Variation Hypothesis"

Showing result 1 - 5 of 7 essays containing the words Height Variation Hypothesis.

  1. 1. Mängden död ved i värdekärnor i Söderåsens nationalpark

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Gustav Thurell; [2024]
    Keywords : volym död ved; stående död ved; liggande död ved; bokskog; nedbrytningsgrad; värdekärna;

    Abstract : There is a lack of knowledge about the development of the dead wood in former production beech (Fagus sylvatica) forests that have been protected. The present study has been carried out in Söderåsen National Park to compare the distribution of dead wood in relatively unaffected beech forests that have been protected for a long time (A-value cores) and older, previously managed beech forest that has only been protected for 20-30 years (B-value cores). READ MORE

  3. 2. Relative vegetation height variation and reflectance of herbaceous-dominated patches in Central Sweden

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Jo Santiago; [2020]
    Keywords : vegetation height; reflectance; plant biodiversity; herbaceous vegetation; MSAVI; coefficient of variation of heights; Height Variation Hypothesis;

    Abstract : Semi-natural landscapes are recognized as suitable habitats for different plant species and provide ecosystem services that contribute to increased plant biodiversity. At the stand level, plant biodiversity is influenced by vegetation structure, of which vegetation height is an important parameter. READ MORE

  4. 3. Vindens inverkan på höjdtillväxten i ett tallbestånd (Pinus sylvestris) längs en sluttning

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

    Author : Rasmus Behrenfeldt; [2018]
    Keywords : höjdbonitering; tillväxt; lutning; diameter; vindbelastning; site index; growth; slope; diameter; wind load;

    Abstract : Höjdboniteringen är det vanligaste sättet att mäta ett bestånds bonitet i Sverige idag. Höjdbonitering baseras på beståndets ålder och dess höjd vid inmätning. För att kunna få en bra uppskattning krävs det därför att beståndet är homogent vad gäller ålder, trädslag och höjd. READ MORE

  5. 4. Extended phenotypes in the canopies of Norway spruce

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Christofer Johansson; [2016]
    Keywords : extended phenotypes; Cinara spp.; Picea abies; associated organisms; C:N ratio; growth rate; aphid abundance;

    Abstract : The extended phenotype may help us understand how genetically determined trait variation in foundation species can influence associated organisms. Today, there is no existing demonstration of how genetically determined trait variation in Norway spruce (Picea abies) may affect associated organisms in tree canopies. READ MORE

  6. 5. Soil factors affecting plant performance of climbing beans (Phaseolus vulgaris L.) in south western Kenya

    University essay from SLU/Dept. of Soil and Environment

    Author : Hanna Williams; [2016]
    Keywords : penetrometer; resistance; soil pH; staking; CN ratio; Kisii; KALRO;

    Abstract : The south west part of Kenya is the most densely populated part of Kenya. This part of Kenya has relatively fertile soils and a favorable environment for crop production, which is why it is a major food producing area. The high population results in land scarcity with the average farm size ranging from 0.8-1. READ MORE