Essays about: "drought index"

Showing result 1 - 5 of 40 essays containing the words drought index.

  1. 1. CHANGES IN URBAN GREENERY DURING THE 2018 HEAT WAVE – A CASE STUDY FOR GÖTEBORG USING REMOTE SENSING

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Ivan Ruzic; [2023-06-21]
    Keywords : heat wave; urban trees; NDVI; remote sensing;

    Abstract : Urban vegetation plays a crucial role in diverse urban microclimates. The numerous ecosystem services provided by vegetation, particularly trees, ensure greater quality of life and thermal comfort regulation. Yet, not all trees are immune to extreme weather events, such as droughts and heat waves, especially in cities. READ MORE

  3. 2. Exploring patterns in risk factors for bark beetle attack during outbreaks triggered by drought stress with harvester data on attacked trees: A case study in Southeastern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Nikolaos Kouskoulis; [2023]
    Keywords : Geography; GIS; Geographic Information Science; Forest ecosystems; Bark beetle outbreak; Southeastern Sweden; Predisposing factors; Triggering factors; Drought stress; Earth and Environmental Sciences;

    Abstract : ABSTRACT Raising temperatures and climate variability have intensified extreme weather events worldwide. These extremes can enhance and trigger possible pest outbreaks. Bark beetle attacks have become a major concern in regions with extensive spruce forest areas. Southeastern Sweden has faced repeated outbreaks resulting in widespread tree loss. READ MORE

  4. 3. Investigating the response of terrestrial evapotranspiration to droughts in Africa : A combined remote sensing and modeling approach

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Yang Foo; [2023]
    Keywords : earth observation; terrestrial evapotranspiration; drought; vegetation-climate interactions;

    Abstract : Climate change is posing a significant threat to terrestrial ecosystems worldwide, in part due to the more frequent occurrence of extreme climatic events such as droughts. While the importance of drought impacts on vegetation has been widely recognized, the time-dependent characteristics of drought-induced response remain insufficiently understood. READ MORE

  5. 4. Relationen mellan ståndortsindex, markfuktighetsklass och granbarkborreangrepp i Uppsala och Västmanland

    University essay from SLU/School for Forest Management

    Author : Anton Pettersson; Mattias Nilsson; [2022]
    Keywords : bonitet; Ips Typographus; trädslagsval;

    Abstract : De senaste tre åren har i genomsnitt 25 procent av den magra marken planterats med gran i Sverige. Gran växer bäst på bördiga marker med god markfuktighet. Trenden har lett till att Skogsstyrelsen meddelat ett stopp för föryngring av gran på tallmark fr.o. 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