Sökning: "tree canopy cover"

Visar resultat 11 - 15 av 15 avhandlingar innehållade orden tree canopy cover.

1. 11. Modelling nutrient transport from forest ecosystems to surface waters : The model ForSAFE-2D

   Författare :Giuliana Zanchi; Institutionen för naturgeografi och ekosystemvetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; forest; dynamic modelling; hydrology; biogeochemistry; ecosystem service;

   Sammanfattning : Forests provide multiple products and services which are all are linked to water resources. Trees need water to grow and, at the same time, they change the quality and the quantity of runoff by modifying water and nutrient cycling. LÄS MER

3. 12. The introduction of Pinus contorta in Sweden : implications for forest diversity

   Författare :Sofia Bäcklund; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : An increasing demand for forest-based products calls for further development and intensification of forest management. The use of non-native tree species in forestry is a common and expanding silvicultural practice worldwide but the effect of non-native trees on native biodiversity and ecosystem functioning is still poorly understood. LÄS MER

4. 13. Replacing Scots pine with Norway spruce : implications for biodiversity in production forests

   Författare :Lisa Petersson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The production forests of southern Sweden are mainly dominated by either Scots pine (Pinus sylvestris) or Norway spruce (Picea abies). Public concerns are now being raised regarding a decrease in the area on which Scots pine is being regenerated, and an increased reliance on Norway spruce production stands. LÄS MER

5. 14. Residential urban forest assessment methodologies : a management perspective

   Författare :Blaz Klobucar; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Many urban trees are located on private property in residential areas, but these trees are infrequently included in urban forest strategies and plans, meaning that for most local governments, the complete urban residential tree population, its potential for supplying ecosystem services and its dynamics are unknown.This thesis examined the assessment methodologies of ecosystem services provided by trees in the attempt to provide valuable information about residential trees. LÄS MER

7. 15. Improving boreal forest regeneration in a variable climate

   Författare :Bodil Häggström; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Regeneration of boreal forests in Sweden mainly involves planting Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) seedlings on clear-cut areas, although there is an increasing interest in planting broadleaves and in applying continuous cover forestry (CCF). LÄS MER