A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Towards dynamic forest trafficability prediction using open spatial data, hydrological modelling and sensor technology
Tekijät: Aura Salmivaara, Samuli Launiainen, Jari Perttunen, Paavo Nevalainen, Jonne Pohjankukka, Jari Ala-Ilomäki, Matti Sirén, Ari Laurén, Sakari Tuominen, Jori Uusitalo, Tapio Pahikkala, Jukka Heikkonen, Leena Finér
Kustantaja: Oxford University Press
Julkaisuvuosi: 2020
Journal: Forestry
Artikkelin numero: cpaa010
Vuosikerta: 93
Numero: 5
Aloitussivu: 662
Lopetussivu: 674
eISSN: 0015-752X
DOI: https://doi.org/10.1093/forestry/cpaa010
Verkko-osoite: https://academic.oup.com/forestry/advance-article/doi/10.1093/forestry/cpaa010/5841333?guestAccessKey=b5e32038-0ff2-46e0-a992-4d69985af293
Forest harvesting operations with heavy machinery can lead to significant soil rutting. Risks of rutting depend on the soil bearing capacity which has considerable spatial and temporal variability. Trafficability prediction is required in the selection of suitable operation sites for a given time window and conditions, and for on-site route optimization during the operation. Integrative tools are necessary to plan and carry out forest operations with minimal negative ecological and economic impacts. This study demonstrates a trafficability prediction framework that utilizes a spatial hydrological model and a wide range of spatial data. Trafficability was approached by producing a rut depth prediction map at a 16 × 16 m grid resolution, based on the outputs of a general linear mixed model developed using field data from Southern Finland, modelled daily soil moisture, spatial forest inventory and topography data, along with field measured rolling resistance and information on the mass transported through the grid cells. Dynamic rut depth prediction maps were produced by accounting for changing weather conditions through hydrological modelling. We also demonstrated a generalization of the rolling resistance coefficient, measured with harvester CAN-bus channel data. Future steps towards a nationwide prediction framework based on continuous data flow, process-based modelling and machine learning are discussed.