Search for dissertations about: "Upland soil"

Showing result 1 - 5 of 6 swedish dissertations containing the words Upland soil.

  2. 1. Grasslands in a changing climate : Summer drought and winter warming effects on grassland vegetation

    Author : Nina Roth; Sara A. O. Cousins; Carly Stevens; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; biodiversity; climate change; compost; floral resources; grasslands; in-situ experiments; mowing; nectar; open-top chambers; plants; rain-out shelters; sheep grazing; soil amendments; summer drought; winter warming; naturgeografi; Physical Geography;

    Abstract : Grasslands harbour a high biodiversity of both plants and animals, and they provide many ecosystem services such as fodder production, pollination, and carbon storage. Climate change is likely to alter grassland ecosystems, with the effects varying according to the exact nature and timing of changes. READ MORE

  4. 2. Grow with the flow : Hydrological controls of riparian vegetation in boreal stream networks

    Author : Lenka Kuglerová; Roland Jansson; Hjalmar Laudon; Birgitta Malm-Renöfält; John Stella; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; boreal forest; channelization; groundwater; Krycklan catchment; liverworts; mosses; riparian buffers; riparian vegetation; river restoration; species richness; stream network; stream size; vascular plants;

    Abstract : What drives species diversity across landscapes is one of the most fundamental questions in ecology. Further, understanding the mechanisms underlying species diversity patterns is important not only for forming and challenging ecological theories but also essential for appropriate landscape management and effective nature conservation. READ MORE

  5. 3. Vegetation patterns and processes in riparian landscapes

    Author : Birgitta Malm Renöfält; Christer Nilsson; Peter Edwards; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : The objective of this study was to increase understanding of the processes structuring and controlling the species richness of riparian plant communities. In particular, I examined the unimodal relationship, found in many rivers, between plant species richness and location along the river corridor. READ MORE

  6. 4. Morphological and chemical leaf traits of tropical montane tree species and their responses to warming

    Author : Manishimwe Aloysie; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; tropical montane forests; tropical trees; leaf morphology; leaf nutrients; warming climate; climate change;

    Abstract : Leaf morphological and chemical traits of tropical trees vary along climate gradients, but it is currently unclear how they will respond to a rapidly warming climate and how this will vary among species. Considering this, tropical trees native to East and Central Africa were investigated in three complementary studies in Rwanda. READ MORE

  7. 5. Land Degradation and Climate in Iceland - a spatial and temporal assessment

    Author : Rannveig Olafsdottir; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spatial analysis; long-term analysis; Holocene; spatial simulations; Iceland; Geology; fysisk geografi; physical geography; Geologi; land cover; farmers perception; Land degradation;

    Abstract : Degradation of vegetation and soil erosion has contributed to loss of biological productivity and land degradation in Iceland. This thesis focuses on spatial and temporal patterns of land degradation in Iceland from a geographical perspective both along short and long timescales. READ MORE