Essays about: "Physical Geography and Ecosystems Science"

Showing result 11 - 15 of 19 essays containing the words Physical Geography and Ecosystems Science.

1. 11. Testing the robustness of the Plant Phenology Index to changes in temperature

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Iain Lednor; [2015]
   Keywords : NDVI; Plant Phenology Index; physical geography and ecosystem analysis; remote sensing; EVI2; Vegetation Index; temperature; phenology.; Earth and Environmental Sciences;

   Abstract : Traditional vegetation indices have long encountered a problem of saturating at high biomass levels. A newly formulated vegetation index, the Plant Phenology Index (PPI), which has a near linear relationship with canopy green leaf area index (LAI) is tested in this study against temperature at 12 sites across Sweden. READ MORE

3. 12. Petroleum activities, wetland utilization and livelihood changes in Southern Akwa Ibom State, Nigeria: 2003-2015

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Unwana Saturday Koffi; [2015]
   Keywords : Physical Geography and Ecosystem Science; GEM; iivelihood changes; sustainable management; wetland agriculture; land cover change; remote sensing; petroleum; wetland degradation; Nigeria; Earth and Environmental Sciences;

   Abstract : The state of Akwa Ibom, Nigeria is known as one of the wetlands rich in biodiversity as well as oil and gas reserves. Its wetland ecosystem is noted for its primary support it has provided for the people living in this area. READ MORE

4. 13. The effects of site preparation on carbon fluxes at two clear-cuts in southern Sweden

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Liisi Nogu; [2014]
   Keywords : eddy covariance; soil CO2 flux; site preparation; physical geography; geography; chamber measurements; Earth and Environmental Sciences;

   Abstract : Clear-cutting is a common forest management practice. It alters the carbon balance of forests by eliminating photosynthesis through canopy removal and affecting autotrophic and heterotrophic respiration. In Sweden, almost 200 000 ha of forest is clear-cut every year and site preparation is carried out on more than 80% of it. READ MORE

5. 14. Climate change impact on water and temperature conditions of forest soils : a case study related to the Swedish forestry sector

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Anna Movsisyan; [2014]
   Keywords : forest management; ground frost; climate model; Physical Geography and Ecosystem analysis; climate change; Swedish forestry; soil temperature; wind storm; GEM; Earth and Environmental Sciences;

   Abstract : Climate observations have proven the existence of global warming. Projected climate change and its impacts are of great concern for the Swedish forestry sector. Managing forest ecosystem in changing climate is vital for the forest ecosystems and for the country’s overall development. READ MORE

6. 15. Object-Based Classification of Vegetation at Stordalen Mire near Abisko by using High-Resolution Aerial Imagery

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Marco Giljum; [2014]
   Keywords : Physical Geography and Ecosystem Analysis; Object-Based Image Analysis; OBIA; Vegetation Classification; Permafrost; Arctic Peatland; Remote Sensing; Aerial Photography; Environmental Monitoring; Landscape Analysis; Earth and Environmental Sciences;

   Abstract : The focus of this work is to investigate and apply the remote sensing method of object-based image analysis (OBIA) for vegetation classification of a permafrost underlain peatland in sub-arctic Sweden, by using aerial imagery of high resolution. Since the northern landscapes are an important source of naturally stored CH4 and CO2, their contribution to the global carbon cycle is a focus in research about climate change and the global methane exchange. READ MORE