Sökning: "Growing Degree Days GDD"

Hittade 5 uppsatser innehållade orden Growing Degree Days GDD.

1. 1. Embryonal utveckling hos grodor med dygnsgrader som förklarande faktor

   Kandidat-uppsats, SLU/Dept. of Ecology

   Författare :Pontus Eriksson; [2017]
   Nyckelord :Rana temporaria; vanlig groda; dygnsgrader; embryonal utveckling; temperatur; bastemperatur;

   Sammanfattning : Dygnsgrader (ºD) används för att förklara den fysiologiska tiden som krävs för att uppnå olika livsstadier. Det används för fisk för att förklara den embryonala utvecklingen, växter för att uppnå t.ex. blomning och för insekter för att förklara kläckningsmönster. LÄS MER

3. 2. Modelling maize (Zea Mays L.) phenology seasonal forecast data

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

   Författare :Tanyaradzwa Joy Nyarai Muswera; [2016]
   Nyckelord :Growing Degree Days GDD ; ECMWF System 4; Physical Geography and Ecosystem analysis; agriculture; maize phenology; GEM; Earth and Environmental Sciences;

   Sammanfattning : Agriculture is an essential economic activity which sustains the livelihood of millions of people around the world. Maize is one of the most grown, consumed and traded cereals in the world mostly because of its adaptability to varied environmental conditions. LÄS MER

4. 3. Testing the robustness of the Plant Phenology Index to changes in temperature

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

   Författare :Iain Lednor; [2015]
   Nyckelord :NDVI; Plant Phenology Index; physical geography and ecosystem analysis; remote sensing; EVI2; Vegetation Index; temperature; phenology.; Earth and Environmental Sciences;

   Sammanfattning : Traditional vegetation indices have long encountered a problem of saturating at high biomass levels. A newly formulated vegetation index, the Plant Phenology Index (PPI), which has a near linear relationship with canopy green leaf area index (LAI) is tested in this study against temperature at 12 sites across Sweden. LÄS MER

5. 4. The influence of climate and land cover on wildfire patterns in the conterminous United States

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

   Författare :Patrizia Vollmar; [2014]
   Nyckelord :land cover; climate; United States; wildfire; spatial analysis; geomatics; physical geography; ecosystem analysis; geography; Earth and Environmental Sciences;

   Sammanfattning : The occurrence of wildfires is greatly dependent on an ecoregions typical climate and land cover type. To investigate whether climate or land cover primarily lead to wildfires in the conterminous United States, wildfire events from 1999- 2010 are analyzed. Wildfires are divided into years and eco-divisions, a sub-form of ecoregions. LÄS MER

7. 5. Sensory profiling of Swedish white wines and a contextual analysis of Swedish viticulture

   Master-uppsats, SLU/Dept. of Plant Breeding (from 130101)

   Författare :Julia Lindén; [2014]
   Nyckelord :Swedish wine; Nordic wine; sensory analysis; microclimate; wine tourism; Solaris; cool climate; cold climate; viticulture; contextual analysis;

   Sammanfattning : The aim of the study is twofold, to generate a sensory profile of Swedish wine today and to investigate the opinion of both wine producers and wine experts on viticulture in Sweden and wine from grapes grown in Sweden, achieved through a contextual analysis comprising a literature study and interviews with wine producers in Sweden and Denmark and wine experts from Sweden and Germany, and a sensory analysis at the company Ipsos. ‘Mixed methods’ was the chosen research strategy as the semi-structured interviews gave qualitative results and the sensory analysis would give quantitative results displayed as spider charts. LÄS MER