Essays about: "Leaf Area Index"

Showing result 1 - 5 of 38 essays containing the words Leaf Area Index.

  1. 1. Evaluating aperture shape controller (ASC) in modulated radiation treatments

    University essay from

    Author : Vilma Andrén Cederholm; [2023-09-28]
    Keywords : Medical physics;

    Abstract : To decrease aperture complexity, the aperture shape controller (ASC) is a recently introduced function in Eclipse external beam planning (Varian Medical Systems, Palo Alto, USA). ASC works within the photon optimizer, minimizing distances between adjacent leaf tips of the MLC. READ MORE

  3. 2. Estimation of Site-Specific Biomass and Leaf Area Index in a Young Scots pine Stand in Southern Sweden

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Olamide Michael Adu; [2023]
    Keywords : Scots pine; Biomass estimation; Leaf area index; Model validation; Site-specific models;

    Abstract : Accurate biomass and leaf area index (LAI) estimation are crucial for understanding forest productivity and carbon dynamics. Models are crucial to estimating forest biomass and LAI. This study aimed to estimate site-specific aboveground biomass and LAI in a young Scots pine stand in southern Sweden. READ MORE

  4. 3. Seasonal variation of LAI in Swedish coniferous forest

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Ilia Mastepanov; [2023]
    Keywords : leaf area index; LAI; PAR; forest; coniferous forest; Hyltemossa; Earth and Environmental Sciences;

    Abstract : Leaf Area Index (LAI) is quantity representing the amount of foliage in the canopy, which makes it an important parameter for analysing terrestrial ecosystems. Traditional methods of measuring LAI were done by analysing hemispherical photographs by hand and were very time consuming, requiring specific weather conditions (Jonckheere et al. 2004). READ MORE

  5. 4. Kvävegödslingens effekter på bladyta och trädkronor i tallbestånd

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

    Author : Carl Åhlund; [2023]
    Keywords : bladyteindex; tall; gödsling; trädkronor; barr lear area index; scots pine; fertilization; tree crowns; needles;

    Abstract : Kvävegödsling är en produktionshöjande åtgärd som varit väl etablerad i Sverige genom åren. På grund av gödslingens miljöpåverkan och allmänt högre kunskap om gödsling så är skötselåtgärden inte lika frekvent utnyttjad som den var runt 70-talet. READ MORE

  6. 5. Evaluation of the LPJ-GUESS crop model under ambient and elevated CO2 concentrations.

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Annika Nitschke; [2022]
    Keywords : LPJ-GUESS; free-air carbon dioxide enrichment experiments; elevated CO2; climate change; wheat yield; Earth and Environmental Sciences;

    Abstract : In the future atmospheric CO2 concentrations might exceed 550 ppm according to the RCP8.5 scenario by mid-century from our current 410 ppm, while our world population is projected to surpass the 9.7 billion threshold within the same time span. This challenge leads to the raising of questions addressing future food security. READ MORE