Ville Kankaanhuhta

Dr. Ville Kankaanhuhta

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Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 August 2023 in Forest Ecology and Management
Verified
Journal Article
Open access
MMMilan Mataruga
Milan Mataruga
BCBranislav Cvjetković
Branislav Cvjetković
BCBart De Cuyper
Bart De Cuyper
IAIna Aneva
Ina Aneva
PZPetar Zhelev
Petar Zhelev
PVPedro Villar-Salvador
Pedro Villar-Salvador

13 June 2021 in Forests
Verified
Journal Article
Open access
PDF file
VKVille Kankaanhuhta
Ville Kankaanhuhta
TPTuula Packalen
Tuula Packalen
KVKari Väätäinen
Kari Väätäinen
This case study introduces an innovation and development concept for agile software tools for the improvement of the productivity and customer experience of forest services. This need was recognized in the context of the opening of forest data and the development of service platforms for a forest-based bioeconomy in Finland. The forest services that were studied covered a continuum from a single type of work, e.g., soil preparation and young stand management through timber procurement, to comprehensive forest property management services. The study concentrated on the needs of micro-, small, and medium-sized enterprises (SMEs), which provide either retail- or business to business (B2B) services as sub-contractors. In addition, the challenges and bottlenecks in service processes detected by other stakeholders were considered. The prevailing service processes were conceptually modelled in order to search for opportunities for improvements in business and ecosystem services, i.e., agile software concepts. For example, we examined whether it would be possible to create opportunities for flexible operational models for precision, resilience, and protection of valuable microsites in forests. These software concepts were developed and evaluated in co-operation with the stakeholders in a co-creative workshop. The technological feasibility and commercial viability of the concepts, as well as the desirability for the customer were considered. The results of this business development process—i.e., agile software concepts and their anticipated benefits—were provided for further evaluation. In addition to the practical implications of this kind of innovation process tested, the potential of these kinds of agile tools for the further development of knowledge-intensive service processes was further discussed.

28 September 2021 in Forests
Verified
Journal Article
Open access
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KVKari Väätäinen
Kari Väätäinen
PHPekka Hyvönen
Pekka Hyvönen
VKVille Kankaanhuhta
Ville Kankaanhuhta
JLJuha Laitila
Juha Laitila
HHHannu Hirvelä
Hannu Hirvelä
Upscaling an operation typically results in economies of scale, i.e., cost advantages in business, especially when the production unit’s utilization rate can be improved. According to economic studies of mechanized timber harvesting, large wood harvesting entrepreneurs tend to be more successful in business than small entrepreneurs. What are the factors that influence harvesting costs, and how great is their effect on costs? These questions were investigated in mechanized cut-to-length timber harvesting in Eastern Finland by varying (a) the size of the harvesting fleet, (b) the harvesting site reserve, and (c) the timing and duration of the working day of machine relocations, in the case of an entrepreneur using a discrete-event simulation method. Prior to the simulations, harvesting site data were generated from the National Forest Inventory data by the MELA software, and the spatial data analyses by ArcGIS. According to the results, largely because of the low utilization rate of the contractor’s own relocation truck, the harvesting cost of a 2-harvesting-unit (2 HU) scenario was 9% or 6% higher than 4 HU, and 13% or 8% higher than 8 HU, with or without a specifically employed driver of a relocation truck, respectively (the harvesting unit consists of a harvester and a forwarder). In the 4 and 8 HU scenarios, harvesting costs decreased on average by 1% (0.3–1.5), when doubling the size of the harvesting site reserve. With fleet sizes of 6 and 8 HU, good utilization of a relocation truck reduced relocation costs, whereas machine costs only increased a small amount because of a longer machine relocation waiting time than with smaller entrepreneurs. The study raised the importance of entrepreneur-specific planning of machine relocations in the cost-efficient timber harvesting in Finland.

1 January 2020 in Silva Fennica
Verified
Journal Article
Open access
TLTiina Laine
Tiina Laine
VKVille Kankaanhuhta
Ville Kankaanhuhta
JRJuho Rantala
Juho Rantala
TSTimo Saksa
Timo Saksa
In Nordic forests, consistent evidence about better seedling survival rate and increased growth due to site preparation have been obtained in numerous studies. Proper site preparation method can reduce costs of the whole regeneration chain through its effects on survival of planted seedlings, abundance of natural regeneration and competition in early stand development. This study compared the natural regeneration of birches (silver birch ( Roth) and downy birch ( Ehrh.)), amount of exposed mineral soil, and growth of planted seedlings between spot mounding and inverting site preparation methods. Present study was conducted in eight forest stands established in 2012 or 2015. Even though difference was not statistically significant, inverting exposed less mineral soil than spot mounding and thus reduced the natural regeneration of birch seedlings by 6135 seedlings ha compared to spot mounding. However, the variation between regeneration areas was remarkable. There was no difference in seedling mortality or growth between the site preparation methods. In order to achieve high growth of conifers, moderate amount of exposed mineral soil and thus less naturally regenerated birch, inverting should be favored over spot mounding.Betula pendula B. pubescens –1

1 January 2025 in Silva Fennica
Verified
Journal Article
Open access
PDF file
KKKalle Kemppainen
Kalle Kemppainen
Kalle KärhäKalle Kärhä
Kalle Kärhä
JLJuha Laitila
Juha Laitila
ASAntti Sairanen
Antti Sairanen
VKVille Kankaanhuhta
Ville Kankaanhuhta
HPHeli Peltola
Heli Peltola
The poor cost-effectiveness of mechanized planting (MECP) is the main reason for the low mechanization rate of planting. In this study, we investigated the productivity of the mechanized excavator-based planting of Norway spruce (Picea abies [L.] H. Karst.) seedlings based on data collected by the Risutec Asta documentation system. We also compared the costs of a MECP chain with two different manual planting (MAP) chains, where mounding was carried out by a crawler excavator (EXC) or a continuously advancing mounder (CONT). The MECP of seedlings was carried out using an EXC equipped with a Risutec PM-160 planting device. Generally, the nine study sites in western Finland contained few surface obstacles (e.g., the logging residues had mainly been harvested), which made the conditions very suitable for MECP. The average production time taken by the MECP was 9 h ha–1. The operating hour (G15-h) productivity averaged 215 seedlings G15-h−1, with the mean planting time being 13.8 s seedling−1. Loading 160 seedlings into the seedling cassette took approximately 10 min (3.8 s seedling−1). Overall, the cost of the MECP was about 3% lower than for the EXC + MAP. However, when productivity was set at <210 seedlings G15-h−1, the cost of the MECP was higher than that of the EXC + MAP. Based on our findings, the most cost-efficient planting chain was CONT + MAP. However, based on our results, the required level of productivity can be achieved if the sites are suitable for MECP and the machine operators are skilled.

1 January 2018 in Metsätieteen aikakauskirja
Verified
Journal Article
Open access
VKVille Kankaanhuhta
Ville Kankaanhuhta
MÄMarko Ämmälä
Marko Ämmälä
JVJorma Vierula
Jorma Vierula