Search for dissertations about: "water cycle evapotranspiration"

Showing result 1 - 5 of 6 swedish dissertations containing the words water cycle evapotranspiration.

  2. 1. Changes of evapotranspiration and water cycle in China during the past decades

    Author : Ge Gao; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Potential evapotranspiration; Actual evapotranspiration; Spatial and temporal characteristic; Trend; Controlling factors; Water cycle; Thornthwaite water balance; China;

    Abstract : Evapotranspiration is the second largest quantity in the water cycle and an important indicator for climate changes. Accurate estimations and better understanding of evapotranspiration are required in hydrologic studies and water resources modelling under stationary and changing climate conditions. READ MORE

  4. 2. Global and continental perspectives on the sustainability of future agricultural water management

    Author : Luigi Piemontese; Fernando Jaramillo; Luigia Brandimarte; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; water; sustainable water management; agriculture; water harvesting; climate change; Sustainability Science; vetenskap om hållbar utveckling;

    Abstract : Ensuring water and food security in the Anthropocene requires an understanding of combined climate change patterns and land and water management options from local to global scale. In many regions, irrigation from river and groundwater sources is being used at unsustainable rates and climate change will further threaten those water sources. READ MORE

  5. 3. Land Use, Freshwater Flows and Ecosystem Services in an Era of Global Change

    Author : Line Gordon; Carl Folke; David Molden; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; freshwater; green water; ecosystem services; integrated water resources management; food production; land use and land cover change; vulnerability; resilience; hydrological cycle; global change; Australia; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : The purpose of this thesis is to analyse interactions between freshwater flows, terrestrial ecosystems and human well-being. Freshwater management and policy has mainly focused on the liquid water part (surface and ground water run off) of the hydrological cycle including aquatic ecosystems. READ MORE

  6. 4. Present and future precipitation variations in the source region of the Yangtze River, China

    Author : Yiheng Du; Avdelningen för Teknisk vattenresurslära; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Precipitation; water balance; ENSO; PDO; Yangtze River; Tibet Plateau; future projections;

    Abstract : The source region of the Yangtze River (SRYR), the origin of the longest river in China, is an area with high-mountains and river ecotones that face considerable challenges under climate change. Precipitation is fundamental for sustainable ecosystems in this area and for the downstream water supplies. READ MORE

  7. 5. The role of the hydrological cycle in forest ecosystems : flow path, nutrient cycling and water-carbon interaction

    Author : Yanzi Yan; MERGE: ModElling the Regional and Global Earth system; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; flow path; DOC concentration; groundwater; photosynthesis; Amazon rainforest; catchment geomorphology;

    Abstract : Forest ecosystems, covering over a third of land on the Earth, play a significant role in the global hydrological cycle, and influence soil erosion and climate change. However, the distribution, movements, quality of water, and hydrological processes in forested ecosystems are not well understood yet. READ MORE