355 uppsatser · sida 2 av 24
… the amount of tree species are rather few. However many different forms of trees arise due to mutations and gives rare appearances like cut-leaved and hanging forms. In some cases these trees are interesting as cultivars and a few of them have become popular garden trees. The …
… cemetery reach the look we associate with an old cemetery, with high cemetery trees and the cemetery wall. The tree assortment that has been used around the cemetery grounds or in the rows of trees lining the walkways has been limited depending on traditions and the suitability …
… is a modification of traditional clear-cutting and implies that some living trees are left on the cut area.The Swedish model of forestry builds on three different levels of conservation, general conservation consideration in all forest operations, voluntarily protected areas and …
… Agroforestry parklands can broadly be defined as areas where scattered trees occur on farmlands as a result of selective clearing. The presence of trees in crop fields may in the long term have a positive effect on the production of annual crops. It is commonly discussed, but …
En fallstudie om tr?dval i Pommerska tomten i Mariestad
… a small green area in an urban environment can offer and whether specific trees can be used to maximize regulatory ecosystem services in a cultural-historical environment. Additionally, it investigates whether there is any difference in ecosystem services depending on whether …
en fallstudie av gammelekar idag och i framtiden vid olika skötsel- och restaureringsscenarier i Hjulstaområdet, Enköpings kommun
… eremita. The studied area lies in an agricultural landscape rich on deciduous trees, about 15 km south of Enköping in the County of Uppland. The species is dependent on large, old, hollow trees, which are exposed to sunlight, usually oak trees in this area. I studied the area in …
utbud, efterfrågan och lönsamhet
… tree plantations in Sweden, and if its profitable to produce Christmas trees in Sweden. Sweden has 4,3 million households, 3 million of these households buys Christmas trees. 80 % of these Christmas trees are Norway Spruce (Picea abies), which is the most common Spruce in …
… goal of this study was to investigate how the radial growth of retained trees responds after thinning-from-above. The National Board of Forestry which initiated this study, was interested in whether there were differences in the growth-response between the tree species Scots …
… previous one. The parameters examined in this study were standing dead wood, treespecies, thick big trees, trees with cavities/cavernous trees and smaller areas saved for preservation. All ofthese plus a few other variables are being considered in the 30 § of the Forestry Act of …
… area in the country. Its regulations prescribe that at least 10 wind firm trees should be left behind after every clear cutting operation. This study have taken place on 30 recently clearcut objects in Bergslagen, Sweden, were an inventory of the standing stock have been made …
… degraded rainforest. The objective of this study was to investigate how mother trees in secondary forest and different site factors affect the abundance and spatial distribution of natural regeneration of non-pioneer tree species in a tropical rainforest in Sabah, Malaysia. The …
Hur viltvård kan påverka variationen av lövträd och buskar
… is threatening many species. Particularity worrying is the loss of broad-leaf trees, since a diversity of species is often associated to them. Today many deciduous trees are situated along the border between forested and open areas, and these small fragments can be important for …
1927 jämfört med 2013
… are constantly changing. Map studies indicate that the amount of deciduous trees in Sweden has decreased in recent years in favor of the coniferous trees. The National Forest Inventory has since the early 1920s monitored the Swedish forests and in recent years has made the old …
… thesis is a study of operative approach and attitude to espaliered fruit trees in home gardens. Through qualitative interviews the informants give their view of problems which might arise, and to some extent how the problems can be solved. In addition, which benefit can be …
kvantitet och inverkan på framtida produktion hos SCA i Västerbotten
According to FSC (Forest Stewardship Council) shall at least a mean of 10 trees per hectare including riparian zones and other areas with high biological values be left in final felling. In addition large clear areas should not be created and all retained trees with high …
