Current issue: 58(1)

Under compilation: 58(2)

Scopus CiteScore 2021: 2.8
Scopus ranking of open access forestry journals: 8th
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Silva Fennica 1926-1997
1990-1997
1980-1989
1970-1979
1960-1969
Acta Forestalia Fennica
1953-1968
1933-1952
1913-1932

Articles containing the keyword 'metsäsuunnittelu'

Category : Article

article id 5191, category Article
Juha Lappi. (1983). Metsänuudistamisen vaatiman ajan merkitys uudistamispäätöksissä. Silva Fennica vol. 17 no. 3 article id 5191. https://doi.org/10.14214/sf.a15174
English title: Elevation of the time factor in reforestation decisions.
Original keywords: metsänuudistaminen; metsäsuunnittelu; kustannukset; uudistamisen viivästyminen; uudistumisaika; normaalimetsälaskelma; nollakorkomenetelmä; päätehakkuuikä; nykyarvomenetelmä
English keywords: forest planning; net present value; forest regeneration; cost of time delay; regeneration costs; final cutting age; regeneration method; zero percent interest rate
Abstract | View details | Full text in PDF | Author Info

Length of the regeneration period is a criterion commonly used for comparing different reforestation methods. The time factor should be evaluated using a realistic system for long-term planning. In this paper the preliminary evaluation is made by simplified calculations based on the development series. The slow regeneration method is assumed to be otherwise equal to the rapid one but it has a 5- or 10-years delay at the beginning, and the rotation is thus the final cutting age plus 5- or 10-years delay. Cost of the time delay is taken to be the difference in reforestation costs that makes the rapid and the slow methods equivalent. Calculations are made using zero costs for the slow method; but if the cost of the slow method increases, the critical cost difference decreases very slowly. The final cutting age and the regeneration method must be decided simultaneously. Therefore, the cost of the time delay is presented as a function of final cutting age. By maximizing the average annual revenue, rotation can be even increased if more rapid but more expensive regeneration method is used.

The PDF includes a summary in English.

  • Lappi, E-mail: jl@mm.unknown (email)
article id 4918, category Article
Pekka Kilkki, Raimo Pökälä, Markku Siitonen. (1975). Metsätalousyksikön puuntuotannon suunnittelu lineaarista ohjelmointia käyttäen. Silva Fennica vol. 9 no. 2 article id 4918. https://doi.org/10.14214/sf.a14762
English title: Linear programming in the planning of timber production in a forestry unit.
Original keywords: metsäsuunnittelu; puuntuotanto; lineaariset mallit
English keywords: forest planning; linear programming; timber production; methods
Abstract | View details | Full text in PDF | Author Info

The planning of timber production in a forestry unit is divisible into two phases. In the first phase, planning provides the decision-maker with a number of possible timber production policies; these policies define the production possibility boundary. After the decision-maker has chosen one of these policies, planning moves to the second phase, in which a detailed programme is prepared with a view to meeting the requirements of the timber production policy accepted. The paper indicates one possibility of solving these two tasks simultaneously. In the first phase, the solution of the primal linear programming problem is employed and in the second phase the respective dual or shadow price solution.

The PDF includes a summary in English.

  • Kilkki, E-mail: pk@mm.unknown (email)
  • Pökälä, E-mail: rp@mm.unknown
  • Siitonen, E-mail: ms@mm.unknown
article id 4801, category Article
Rihko Haarlaa. (1969). Puunkorjuun suunnittelu ja metsätaloussuunnitelmat. Silva Fennica vol. 3 no. 3 article id 4801. https://doi.org/10.14214/sf.a14589
English title: The role of logging in forest management plans.
Original keywords: hakkuu; puunkuljetus; metsäsuunnittelu; puunkorjuu; metsäsuunnitelmat; metsätaloussuunnitelmat
English keywords: logging; timber harvesting; felling; transportation; forest management plan; forest working plan
Abstract | View details | Full text in PDF | Author Info

The purpose of this study was to answer questions concerning the basic information in planning of timber harvesting, how this information has to be handled, and how the planning of logging has to be combined with other forest management planning.

A deductive research method was used. By analysing a logging plan, prepared for a certain forest area, general conclusions were reached. To prepare the logging plan in connection with the forest management plan, the following information was found to be necessary: boundaries of the area, extent and ownership of the planned area, maps including information of the location of the timber and the conditions for transportation, road network and a reliable picture of the difficulty of the forest terrain.

Based on the material of the present timber harvesting methods it will be possible to predict the logging methods which will be applicable in the near future. The object to be planned has to be divided to operation areas. The amount of manpower and equipment needed can be estimated for each phase of the timber harvesting chain on the basis of the information calculated in this manner. Investments to machines and basic improvement works have to be planned before the effect of planning can be calculated in the logging costs, which are to be minimized. Due to the rapid development of the field, the handling of the material in connection with a forest management plan has to be left partly unfinished since the development of future logging methods cannot be reliably predicted.

The PDF includes a summary in English.

  • Haarlaa, E-mail: rh@mm.unknown (email)
article id 4719, category Article
H. K. Seip. (1964). Methods and possibilities of long-term forecasts in forest management planning. Silva Fennica no. 115 article id 4719. https://doi.org/10.14214/sf.a14278
Original keywords: metsänhoito; metsätalous; metsäsuunnittelu; ennusteet
English keywords: forest management; forest planning; forest management planning; forecasts
Abstract | View details | Full text in PDF | Author Info

This paper describes different methods of long-term forecasts in forest management planning with a special attention on intention forecasts for a total forest property or district. Methods for calculating the sustained yield on the basis of the actual increment or the yearly area cut are discussed. It is concluded that a better estimate of the sustained yield is obtainable by the application of a long-term forecast technique. Forecasts for 100 years should not be viewed as plans, but as a background for making short-term decisions. Some of the long-term-type programmes, such as the programme of maximum profit, sustained yield in volume and in money are discussed briefly.

It is pointed out that there is often present a conflict between the various elements of the policy formulated by a forest owner. This leads to the conclusion that the calculations of the profitability of single projects may be misleading.

The precision of a long-term forecast is discussed, and how under certain assumptions the error of the allowable cut is influenced by errors in area, volume, age etc. It is shown that the precision in area and volume is more important in this connection than, say, the precision in increment. In conclusion, existing knowledge, methods and equipment for calculations constitute a basis for long-term forecasts which make them an important instrument in forest management planning.

The PDF includes a summary in English.

  • Seip, E-mail: hs@mm.unknown (email)
article id 4584, category Article
Olli Heikinheimo. (1948). Metsätaloudelliset näkökohdat ja keskitetyt hakkuut. Silva Fennica no. 64 article id 4584. https://doi.org/10.14214/sf.a13986
English title: Forest management and centralized loggings.
Original keywords: hakkuut; metsänhoito; metsäopetus; metsätyö; metsänhoitajien jatkokurssit; jatkokoulutus; metsäsuunnittelu; hakkuukierto
English keywords: forest management; forest planning; fellings; forest education; felling cycle
Abstract | View details | Full text in PDF | Author Info

Silva Fennica Issue 64 includes presentations held in 1947 in the third professional development courses, arranged for foresters working in the public administration. The presentations focus on practical issues in forest management and administration, especially in regional level. The education was arranged by Forest Service. Two of the presentations were published in other publications than Silva Fennica issue 64.

This presentation discusses different ways of organizing felling cycle, forest management practices used in the forests of Finnish forest research institute, and how good practices developed in the institue could be applied in state forests.

  • Heikinheimo, E-mail: oh@mm.unknown (email)
article id 4535, category Article
A. A. Räsänen. (1938). Aluehallinnon töiden järjestelystä. Silva Fennica no. 46 article id 4535. https://doi.org/10.14214/sf.a13944
English title: Organization of work in regional administration.
Original keywords: valtionmetsät; Metsähallitus; metsänhoito; metsäopetus; metsänhoitajien jatkokurssit; metsänhoitajat; hoitoalueet; metsäsuunnittelu
English keywords: forest management; Forest Service; forest administration; forest education; state forests; professional development courses; foresters; forest officers; districts
Abstract | View details | Full text in PDF | Author Info

Silva Fennica issue 46 includes presentations held in professional development courses, arranged for foresters working in public administration in 1937. The presentations focus on practical issues in forest management and administration, especially in regional level. The education was arranged by Forest Service. 

This presentation describes planning and organization of work in regional administration.

  • Räsänen, E-mail: ar@mm.unknown (email)

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