Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ari Talkkari"'
Autor:
Ari Talkkari
Publikováno v:
Silva Fennica, Vol 30, Iss 2-3 (1996)
A gap-model was used with forest inventory data in taking ground-true site, soil and tree characteristics into account in predicting the effects of climate change on forests. A total of 910 permanent sample plots established in the course of national
Externí odkaz:
https://doaj.org/article/1d45023146484f71845df894c0a5f950
Autor:
Diana Feliciano, Lelde Vilkriste, Liviu Nichiforel, Ari Talkkari, Didier Marchal, Anna Lawrence, Erik Wilhelmsson, Meelis Teder, Teppo Hujala, Torgny Lind, Philippe Deuffic, Krzysztof Jodłowski
Publikováno v:
Land Use Policy
Land Use Policy, Elsevier, 2020, 94, pp.104522-. ⟨10.1016/j.landusepol.2020.104522⟩
Land Use Policy, Elsevier, 2020, 94, pp.104522-. ⟨10.1016/j.landusepol.2020.104522⟩
International audience; The decisions and actions of private forest owners are important for the delivery of forest goods and services. Both forest ownership, and policies related to forest owners, are changing. Traditionally in most countries, gover
Publikováno v:
Environmental Modelling & Software. 22:1240-1249
In this study a GIS-based decision support system (DSS) was built for assessing the short- and long-term risk of wind damage in boreal forests. This was done by integrating a forest growth model SIMA and a mechanistic wind damage model HWIND into geo
Autor:
Kai-Yun Wang, Heli Peltola, Ari Talkkari, Seppo Kellomäki, Harri Strandman, Hongcheng Zeng, Ari Venäläinen
Publikováno v:
Canadian Journal of Forest Research. 36:2247-2258
The aim of this study was to integrate component models for tree growth, wind damage, and airflow to assess the consequences of alternative forest-management options on the long-term risk of wind damage on a regional scale. This work could help fores
Autor:
Seppo Kellomäki, Ari Venäläinen, Harri Strandman, Ari Talkkari, Kai-Yun Wang, Hongcheng Zeng, Heli Peltola
Publikováno v:
Forest Ecology and Management. 203:77-88
The objective was to predict the risk of wind damage at forest edges in Scots pine (Pinus sylvestris), Norway spruce (Picea abies), and birch (Betula spp.) dominated stands in Central Finland. The method used here was to integrate a mechanistic wind
Autor:
Hongcheng Zeng, Heli Peltola, Ari Venäläinen, Seppo Kellomäki, Ari Talkkari, Kai-Yun Wang, Harri Strandman
Publikováno v:
Agricultural and Forest Meteorology. 123:149-158
A linear PC-based airflow model Wind Atlas Analysis and Application Program (WAsP) is used here to study how forest management, especially clear-cutting, influences the local wind climate in terms of mean regional wind velocity and the local occurren
Publikováno v:
Agricultural and Food Science, Vol 11, Iss 4 (2008)
Agricultural and Food Science
Agricultural and Food Science
In precision farming fields may be divided into management zones according to the spatial variation in soil properties. Clay content is an important soil characteristic, because it is associated with other soil properties that are important in manage
Publikováno v:
Forest Ecology and Management. 135:303-313
This work aims at integrating component models from the tree, stand and regional levels to produce a means of assessing the risk of wind damage at forest margins. This is done by employing (i) a mechanistic model for predicting the critical wind spee
Publikováno v:
Forest Ecology and Management. 119:137-150
The applicability of the parabolic function of the Jabowa gap model for the relationship between tree growth and temperature sum for aggregating short-term temperatures responses was investigated by determining parameter values for the temperature fu
Autor:
Ari Talkkari
Publikováno v:
Forest Ecology and Management. 106:97-106
The impacts of climate change on forest resources during the next century were studied on regional and national scales using a gap-type forest ecosystem model. Computations were made using tree and stand data from 1256 permanent sample plots establis