Sökning: "phenological parameters"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden phenological parameters.

  1. 1. Germination dynamics of soybean cultivars in relation to common spring germinating weeds

    Master-uppsats, SLU/Dept. of Crop Production Ecology

    Författare :Sofie Pålsson Andersson; [2021]
    Nyckelord :soybean; cardinal temperatures; base temperature; cold tolerance; germination; Nemoral climatic zone; weeds;

    Sammanfattning : Soybeans are one the most traded crops in the world with main production areas in north and south America. Europe only produces 5 % of its domestic need for soybean. In the Nemoral zone of northern Europe no commercial cultivation of soybeans exists today. LÄS MER

  3. 2. Land Surface Phenology as an indicator of performance of conservation policies like Natura2000

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Gunjan Sharma; [2016]
    Nyckelord :MODIS NDVI; Natura2000; Land Surface Phenology LSP ; ecological indicators; TIMESAT; trend analysis; GEM; Earth and Environmental Sciences;

    Sammanfattning : Considering the growing pressure on various ecosystems all around the world, the development of ecological indicators for assessing the health and condition of the ecosystems has become an integral part of environmental management and policy making efforts. Such indicators do not only simplify the complex ecosystem processes but can also act as a measure of performance of a conservation policy. LÄS MER

  4. 3. Relationship between tree species composition and phenology extracted from satellite data in Swedish forests

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Stefan Arvidsson; [2015]
    Nyckelord :MODIS; forests mapping; fractional mapping; satellite derived phenology; GIS; Physical Geography and Ecosystem analysis; TIMESAT; NDVI; EVI; Earth and Environmental Sciences;

    Sammanfattning : This study investigated the “relationship between tree species composition and phenology extracted from satellite data in Swedish forests”. The proposed method investigated in this study aims at mapping the fractional composition of deciduous/coniferous tree species and also the fractional composition of Norway spruce (Picea abies) and several pine (Pinus sp. LÄS MER

  5. 4. Polynomial trends of vegetation phenology in Sahelian to equatorial Africa using remotely sensed time series from 1983 to 2005

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Mozafar Veysipanah; [2014]
    Nyckelord :TIMESAT; remote sensing; GIMMS NDVI; Physical Geography and Ecosystem analysis; Sahel; phenology parameters; polynomial trends; vegetation; soil moisture; Earth and Environmental Sciences;

    Sammanfattning : Popular science Our understanding of global warming can be achieved in different ways. One way is to study the phenological parameters of vegetation. LÄS MER

  7. 5. The Many Phases of Phenology : Geographic and Inter-Specific Differences in Phenological Between-Year Variation

    Master-uppsats, Institutionen för biologisk grundutbildning

    Författare :Jonas Josefsson; [2011]
    Nyckelord :;

    Sammanfattning : As climate-driven changes in phenology are becoming more apparent, the need to quantify these changes is increasing. An important challenge in detecting phenological changes is that between-year variation in phenology is large. Between-year variation determines the statistical power of comparisons between contemporary and historical observations. LÄS MER