The Caspian forests of Northern Iran: scientific results in little-known ecosystems

Two interesting works about Caspian forests of Northern Iran were published in the last Forest Systems issue. This little-known and singular ecosystems were histori­cally comprised of broadleaved deciduous forests that covered an area of 1.8 million ha, contained 15% of the total forests of Iran and represented 1.1% of the country’s area. It is a …

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The Argan tree in Algeria: the morphological variability of fruits and stones suggests a singular population

The Argan tree (Argania Spinosa (L.) Skeels) (Sapotaceae), is an endemic species of Morocco and Algeria. This species has biological and ecological interest due to its remarkable adaptation to severe climatic conditions. It is an interesting multi-use tree with important socio-economic characteristics. Argan tree is a source of forage for livestock, wood, fruits and fuel in …

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The potential inclusion of hybrid poplar in European standard durability tests against biological agents

The planting of fast-growing species such as some Populus (poplar) species or clones has been carried out in several countries with the aim of obtaining raw material of economic, social and environmental interest. Broadly speaking, the use of poplar has traditionally been associated with the production of sheets and, with them, the manufacture of products such as …

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Is above-ground biomass increment a good index for site productivity in forests?

How to best summarize site productivity in one measure has been a crucial question in forestry. The most widely used measure is the height-age site index (SI), i.e. an expected or realized stand height at a given reference age. Height has the advantages that it can be measured directly and that it is generally not …

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Biocontol against the invasive chesnut gall wasp: first data in Iberian Peninsula

Asian chestnut gall wasp (ACGW) currently constitutes a severe pest of chestnut trees (Castanea spp.) worldwide. This plague is mainly generated by a native species from China (Dryocosmus kuriphilus Yasumatsu, 1951) while other Chinese species is recently described (Dryocosmus zhuili Liu & Zhu, 2015) as cause of ACGW. The negative effects of ACGW on chestnuts …

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Remote sensing for the Spanish forests in the 21st century

In a context of complex demands on forest resources, we need to identify priorities for biodiversity and carbon budgets, requiring accurate tools with sufficient temporal frequency. Furthermore, understanding long-term forest dynamics is necessary for sustainable planning and management. Remote sensing is a powerful means for analysis, synthesis, and report that provides insights and contributes to …

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Innovative soil conditioners and mulches improve mountain forestation

A recent study published in Forest Systems journal discusses the interest of innovative planting techniques (soil conditioners and mulches) to improve the early performance of forestation in mountain conditions. The authors conducted a field experiment in upper montane conditions (1,400 m) in the southern Pyrenees (NE Spain), planted with mountain ash (Fraxinus excelsior L.). Some …

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From field work to AI: Machine learning can change the way for clasifying forests

An innovative work published in Forest systems journal shows the eficacy of machine learning for clasifying forests using remote sensing data. Authors developed a case study in Monteverde forests of Tenerife (Canary islands, Spain), an ancient ecosystems with a high level of protection due to its relictic flora and sensitivity to environmental change. As authors …

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