Essays about: "LPJ-GUESS"

Showing result 21 - 25 of 34 essays containing the word LPJ-GUESS.

  1. 21. Organic farming’s role in adaptation to and mitigation of climate change : an overview of ecological resilience and a model case study

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Gusten Brodin; [2016]
    Keywords : sustainable agriculture; soil carbon sequestration; organic farming; climate change resilience; LPJ-GUESS; Physical Geography and Ecosystem Science; Earth and Environmental Sciences;

    Abstract : Agriculture is essential for human survival and today it faces many problems related to both climate change and an increasing population. While increased total yields during the 20th century have created the conditions for both global economic and population growth, the agricultural practices utilized have often had detrimental consequences both for ecosystems and people. READ MORE

  3. 22. Simulating future wheat yields’ response to climate change and evaluating the efficiency of early sowing in Spain

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Altaaf Mechiche-Alami; [2015]
    Keywords : early sowing; adaptation; climate change; food security; ecosystem analysis; physical geography; Spain; wheat; GEM; Earth and Environmental Sciences;

    Abstract : Global food security is one of the main concerns of this century. Moreover, the increasing negative impacts of climate change on different sectors including agriculture are further expected to exacerbate these challenges. READ MORE

  4. 23. Present and near future water availability for closing yield gaps in four crops in South America

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Karla Markley Vergara; [2015]
    Keywords : growing season precipitation; water yield gap; Physical Geography and Ecosystem Analysis; fraction water yield gap; LPJ-GUESS; climate change; Earth and Environmental Sciences;

    Abstract : Sustaining crop yields present challenges worldwide. These challenges vary regionally and climate change may have positive or negative effects on crop yields. Closing yield gaps in already established cropping areas is one of the solutions to increase future food supply. READ MORE

  5. 24. Investigations of the mechanisms behind the carbon loss in a Swedish pine & spruce forest, with the ecosystem model LPJ-GUESS

    University essay from Lunds universitet/Fysiska institutionen

    Author : Kristoffer Eliasson; [2015]
    Keywords : LPJ-GUESS; ecosystem model; Norunda; carbon source; drainage; Scots pine; Norway spruce; Physics and Astronomy;

    Abstract : Vegetation on land is globally taking up about 30% of the CO2 that is emitted by human activities (oceans take up 30%, while 40% remains in the atmosphere). This ability to store carbon in the vegetation and in the soil is very important to mitigate the climate changes, but all land based ecosystems are not carbon sinks. READ MORE

  6. 25. Modelling vegetation dynamics and carbon fluxes in a high Arctic mire

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Laura Reinelt; [2015]
    Keywords : methane dynamics; biogeochemical cycling; vegetation dynamics; ecosystem modelling; LPJ-GUESS; geography; physical geography; high Arctic wetland; Zackenberg; Earth and Environmental Sciences;

    Abstract : High Arctic wetlands are an important component of the global climate system. Nevertheless estimations of their expected response to climate change and associated climate-feedbacks have large uncertainties. Improving models for vegetation and carbon dynamics of ecosystems is an important step towards making predictions more accurate. READ MORE