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1. Forest soils: a diverse, non-renewable and fragile resource
1.1 Soil formation factors and diversity
Soil formation depends on five major factors: (i) parent material*, (ii) climate, (iii) topography, (iv) living organisms, including humans, and (v) time. .
The transformation of the parent material, or a mixture of parent materials, into a differentiated, functional soil (i.e. one capable of providing different ecological functions, see introduction) involves a series of elementary phenomena, either simultaneous or successive in time (figure
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Forest soils: a diverse, non-renewable and fragile resource
Threats to forest soils
Bibliography
Data
Key figures for metropolitan France's forests :
28% of mainland France is covered by forests;
3.2 million private owners share 12 Mha, or 75% of the forest;
More than 15,600 local authorities own 2.9 Mha, or 16% of the forest;
the State owns 1.7 Mha of state-owned forests, i.e. 9% of...
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Key figures on the state of the world's forests (source: Geo) : https://www.geo.fr/environnement/les-chiffres-cles-de-la-situation-des-forets-dans-le-monde-213698
Key figures for the French forest (source:...
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