Essays about: "Picea abies"

Showing result 1 - 5 of 198 essays containing the words Picea abies.

  1. 1. The relative contribution of CNVs and SNPs to local adaptation in Norway spruce (Picea abies)

    University essay from Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Yuxuan Niu; [2022]
    Keywords : CNVs; SNPs; Norway spruce; local adaptation;

    Abstract : In the current environment of severe climate change, studying the adaptability of Norway spruce to the environment, that is, local adaptation is of great significance for helping to protect forest tree species and genetic breeding. As a structural variation, copy number variations (CNVs) have been proved to play an important role in shaping population structure and local adaptation in marine species, going beyond traditional studies focusing only on SNPs. READ MORE

  2. 2. Granbarkborren i svenska produktionsskogar : vilka faktorer påverkar massutbrott och vilka åtgärder kan vidtas för att minska dem?

    University essay from SLU/Department of Biosystems and Technology (from 130101)

    Author : Fredrike Lohe; Sonja Otell; [2022]
    Keywords : Ips typographus; Picea abies; klimatförändringar; skadedjur; naturliga fiender; vattenstress; storm; skogsbruk; massattack;

    Abstract : Granbarkborren, Ips typographus, är en av få arter som kan öka drastiskt i populationsdensitet och leda till en omfattande dödlighet av träd i skogen. Skadorna år 2020 uppgick till ett värde på 3,5 miljarder kronor, vilket gör det värdefullt att försöka förstå varför dessa utbrott sker och vad för åtgärder som kan vidtas för att undvika dem. READ MORE

  3. 3. The ability to create mixed stands by planting Norway spruce and Scots pine every second row

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Eva Higgins Andersson; [2022]
    Keywords : Local site index; seedlings every second row; regeneration; biodiversity; climate change; establishment;

    Abstract : Swedish forests primarily consist of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.). READ MORE

  4. 4. Go with the flow - can environmental flows save us? : A study of the flow patterns in Bredforsen and possibilities for the future

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Hilda Brynjarsdotter; [2022]
    Keywords : Riparian zone; Riparian vegetation; Riparian vegetation zones; Regulated rivers; Floodings; hydropower;

    Abstract : Freshwater systems have, during human history, endured large-scale impacts. According to the water framework directive, measures must be developed to create a better environment for species in, and connected to, freshwater systems. Hydropower plants has caused loss of natural disturbance (e.g. READ MORE

  5. 5. Evaluation of the forest composition in browsed Scots pine plantations

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Carl Noyce; [2022]
    Keywords : browsing damage; forest owners; mera tall; moose; pine regeneration; Södra;

    Abstract : Since the early 2000s browsing damage to Scots pine (Pinus Sylvestris) in the Götaland region of Sweden has been consistently estimated to be 15% per year, peaking at around 25% between 2009-2016, the highest of any region in the country. The Swedish Forest Agency has set a goal of achieving pine damage levels below 5% on average in the long-term, even if higher levels can be accepted in an individual year. READ MORE