Category: Non classé

Article published: Emerging stability of forest productivity by mixing two species buffers temperature destabilizing effect

An article has just been published in the “Journal of Applied Ecology” journal dealing with the effect of mixing tree species on forest productivity. This article shows that two species mixed stands have a greater productivity stability over time than comparable monospecific stands. Mixed stands would buffer the destabilizing effect of temperatures on growth, which …

Continue reading

Article published: With increasing site quality asymmetric competition and mortality reduces Scots pine (Pinus sylvestris L.) stand structuring across Europe

An article has just been published in the “Forest Ecology and Management” journal dealing with the stand structuring of monospecific Scots pine forests. This article shows that the stand structuring decreases with site quality because of mortality and asymmetric competition processes. The OPTMix plots contributed to the data of this study based on 90 Scots …

Continue reading

A new internship on forest regeneration begins on OPTMix plots

Matias Bentkowski is carrying out his internship at the EFNO unit of INRAE. The aim is to study the impact of summer drought on tree regeneration. The field experiment is done using the OPTMix research facility. It consists of measuring water stress and the annual growth of seedlings of Scots pine and Sessile oak under …

Continue reading

Study of tree crowns complementarity

In mixed forests, complementarity can be expressed by a differentiate use of space between species so that each species makes the best use of the light resource according to its photosynthetic capacities. This spatial differentiation between species is possible thanks to plasticity in crown architecture. Thus many articles report an increase in the extent and …

Continue reading

OPTMix annual meeting: January 25, 27 and 28, 2022

The OPTMix annual meeting will take place on January 25, 27 and 28, 2022 by videoconference. For more information please contact Nathalie Korboulewsky.

OPTMix data usage conditions and agreement and data request form

The data usage conditions and agreement forms and a data request form are available on the following page: Home\Data usage conditions and agreement and data request form\

Article published: Handbook of field sampling for multi-taxon biodiversity studies in European forests

An article has been published in the “Ecological Indicators” journal presenting a handbook to sample biodiversity in European forests. Biodiversity data of the OPTMix device were used in this article which was part of the COST Action BOTTOMS-UP: Burrascano, S., G. Trentanovi, Y. Paillet, J. Heilmann-Clausen, P. Giordani, S. Bagella, A. Bravo-Oviedo, T. Campagnaro, A. …

Continue reading

Article published: Mixed stand at Low density: a solution to face climate change? The case of sessile oak and Scots pine mixture.

An article presenting the main results of Jordan Bello’s thesis defended in March 2019 was published in the latest issue of the journal “Rendez-Vous Techniques” of the National Forest Office: Bello, J., P. Vallet, T. Perot, L. Arnaudet, A. Calas, C. Proult, D. Devanne and N. Korboulewsky (2021). « Peuplements mélangés à faible densité : une …

Continue reading

Article published: What are the advantages and limits of tree species mixture to face climate changes? The contributions of the OPTMix device

An article presenting the latest results obtained on the OPTMix device was published in the latest issue of the journal “Rendez-Vous Techniques” of the National Forest Office: Korboulewsky, N., P. Balandier, Y. Dumas, M. Gosselin, A. Marell and T. Perot (2021). « Quels intérêts et limites du mélange d’essences face aux changements globaux ? Les apports …

Continue reading

Monitoring tree dieback of sessile oak and Scots pine

A tree health status scoring campaign was carried out in 2020 on all OPTMix plots on sessile oak and Scots pine tree samples. We used the DEPERIS protocol developed by the French Forest Health Department. A new scoring campaign was carried out in summer 2021. The first analyzes show an increase in the percentage of …

Continue reading