Kesällä istutettavien, kasvussa olevien kuusen paakkutaimien käsittelykestävyys ja maastomenestyminen

Helenius, Pekka; Luoranen, Jaana; Rikala, Risto

doi:10.14214/ma.6194

Cited by 5 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Delivery, and its flexibility, timing and accuracy play key role also in silvicultural operations. In stand establishment, the timing of soil preparation, the handling and delivery of seedlings, and the timing of planting can have a marked effect on the results (Helenius et al 2002a(Helenius et al , 2002b. In tending, timing is essential for the vitality, quality and growth of the main tree crop (Varmola & Salminen 2004).…”

Section: Formulation Of the Research Taskmentioning

confidence: 99%

Creating value through advanced silvicultural services

Kiljunen¹

2006

Diss. For.

View full text Add to dashboard Cite

A scenario study was used for creating alternative operational environments for wood production in Finland in the future. The most promising research topics in the alternative scenarios were then analyzed and summarized. The alienation of non-industrial private forest landowners from practical forestry, the need to foster entrepreneurship, and the need to improve cost-efficiency in silvicultural service provision were found to be the most important background factors. Also, counteracting the effects of threatening lack of labour for silvicultural works safeguards the future of wood production. Based on these results, theories on creating value through services were applied in order to develop a service chain for stand establishment and management of young stands of Norway spruce. The first step in the service chain was that of quality-guaranteed stand establishment service, where the establishment of a tree stand is sold to the customer as a total service commodity. The idea is that the service provider bears the risk of failure of stand establishment up to a certain stand age. Adequate premiums for covering the risk of failure were calculated. The second step involved looking into the possibilities of classifying established Norway spruce stands according to their potential for emerging need to undergo early tending within six years after planting. Reliable prediction of the need for early tending turned out to be impossible, despite the use of state-of-the-art classification algorithms. The third step was to study the effect of timing of tending on the consumption of working time in young Norway spruce stands. The common problem of great variation between sample plots in time studies was avoided by introducing a new method. Just a brief two-year time span between the alternative timing points of pre-commercial thinning resulted in marked changes in the consumption of working time. The simulated effects on the further development of the stands did not differ much from one another. The effective use of examples of such services, as presented in this study, requires information and communication technology applications for the management of stand and operational information.

show abstract

Section: Formulation Of the Research Taskmentioning

confidence: 99%

Creating value through advanced silvicultural services

Kiljunen¹

2006

Diss. For.

View full text Add to dashboard Cite

show abstract

“…An elevated temperature increases the respiration rate of the seedlings, and thus depletes their carbohydrate reserves [13,19,20]. Therefore, elevated temperature, which restricts photosynthesis and water uptake inside closed boxes, is likely to cause stress and latent or direct damage to the seedlings during storage [21,22]. Actively growing seedlings may also be more sensitive to rapid changes in radiation and temperature as compared to seedlings that are dormant [13].…”

Section: Introductionmentioning

confidence: 99%

Duration Limits on Field Storage in Closed Cardboard Boxes before Planting of Norway Spruce and Scots Pine Container Seedlings in Different Planting Seasons

Luoranen

Pikkarainen

Poteri

et al. 2019

Forests

Self Cite

View full text Add to dashboard Cite

For spring plantings, conifer seedlings are usually packed in closed cardboard boxes and freezer stored over winter. Additionally, seedlings are increasingly being stored in cardboard boxes in spring, summer, and autumn plantings in Finland. The aim of this study was to determine the maximum safe duration for the field storage of Norway spruce (Picea abies (L.) Karst.) and Scots pine (Pinus sylvestris L.) container seedlings in closed cardboard boxes for different planting times (dates) in Nordic boreal conditions. In the first experiment, Norway spruce seedlings (85-cm3 peat plugs) were packed in cardboard boxes in August, September, or October, and, in the second experiment, in the middle of May. In the third Scots pine experiment, mini seedlings (30-cm3 peat plugs) were packed in May. In each experiment, the seedlings were stored in closed cardboard boxes in a nursery for one, three, seven, 14, and 21 days. The control seedlings were stored in open storage in the nursery. After storage, the seedlings were planted in a field. In all of the experiments, increased closed-box storage reduced the maximum photochemical yield of photosystem II (Fv/Fm) in the needles, and reduced root growth after planting. The frost hardiness was weakened in the Norway spruce seedlings that were stored in closed boxes for 21 days in August and October. In the spring experiments, prolonged storage increased the mortality of seedlings. Mortality rates were high in the autumn experiment due to the exceptionally warm and dry weather. Our conclusions, being based on the short term effects of field storage, are that conifer seedlings can be stored in closed boxes for only three days in August and about a week in September, October, and spring.

show abstract

“…2006. Lisäksi taimet näyttävät selviävän hyvin niihin kasvukauden aikana kohdistuvasta mekaanisesta rasituksesta (Helenius 2002a). Myös kuivuuden aiheuttama istutuksen jälkeinen kuolleisuus on Suomen olosuhteissa harvinaista (Helenius ym.…”

Section: Istutuskoneinvestointi Alueyrittäjän Näkökulmastaunclassified

Istutuskoneinvestointi alueyrittäjän näkökulmasta

Rantala¹,

Saarinen²

1970

Metsätieteen Aikakauskirja

View full text Add to dashboard Cite

Kesällä istutettavien, kasvussa olevien kuusen paakkutaimien käsittelykestävyys ja maastomenestyminen

Cited by 5 publications

References 0 publications

Creating value through advanced silvicultural services

Creating value through advanced silvicultural services

Duration Limits on Field Storage in Closed Cardboard Boxes before Planting of Norway Spruce and Scots Pine Container Seedlings in Different Planting Seasons

Istutuskoneinvestointi alueyrittäjän näkökulmasta

Contact Info

Product

Resources

About