Essays about: "vegetation coverage"

Showing result 21 - 25 of 48 essays containing the words vegetation coverage.

  1. 21. Timing of ungulate browsing and its effect on sapling height and the field layer vegetation : experimental study using seasonel exclosures during one year

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Filip Ånöstam; [2017]
    Keywords : clear-cut; ungulates; browsing; saplings;

    Abstract : Browsing and grazing by ungulates affect the forest structure by altering species composition and affect the growth in individual trees. The purpose with this study is to investigate the ungulate species composition visiting the clear cut, how timing of browsing affects the height increment in deciduous and conifer saplings, and how deer grazing affects the field layer coverage and height. READ MORE

  3. 22. Tracing mangrove forest dynamics of Bangladesh using historical Landsat data

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Md Monirul Islam; [2017]
    Keywords : Bangladesh; Physical Geography and Ecosystem Analysis; Landsat; mangroves; change detection; time-series; NDVI; supervised classification; Earth and Environmental Sciences;

    Abstract : Present, accurate, and reliable estimation of mangrove forests in Bangladesh is limited. Former estimation of mangroves extent and density has been more or less restricted to Sundarbans and do not represent the whole country. READ MORE

  4. 23. Joint use of Sentinel-1 and Sentinel-2 for land cover classification : a machine learning approach

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Miguel Gumersindo Castro Gomez; [2017]
    Keywords : Random Forest; temporal series; Physical Geography and Ecosystem analysisoptical; GEM; land cover classification; SAR; Earth and Environmental Sciences;

    Abstract : Reliable information on land cover is required to assist and help in the decision-making process needed to face the environmental challenges society has to deal with due to climate change and other driving forces. Different methods can be used to gather this information but satellite earth observation techniques offer a suitable approach based on the coverage and type of data that are provided. READ MORE

  5. 24. Natural regeneration on clear cuts in Southern Sweden : how fencing, soil treatment and distance from broad-leaved forest affect tree regeneration and ground vegetation

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Jón Ásgeir Jónsson; [2016]
    Keywords : natural regeneration; forest restoration; pioneers; noble broadleaves; Picea abies; soil scarification; fencing; distance from broad-leaved forest; Raslångens ekopark;

    Abstract : The forests of Europe have seen a dramatic shift in structure, species composition and area coverage in the last centuries. Large areas previously covered by a mixed broad-leaved forest are now used for agriculture or other land uses. READ MORE

  6. 25. Vegetationsetablering i anlagda våtmarker i södra Skåne

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Alexander Lindskog; [2016]
    Keywords : Biology and Life Sciences;

    Abstract : Scanian wetlands were extensively drained in the late 19th and early 20th century, with as little as 10% of historical wetlands remaining today. However, due to an increased understanding of the many important functions served by wetlands in the agricultural landscape, there’s now a strong incentive to restore these systems. READ MORE