Open data for assessing habitats degree of conservation at plot level. An example dataset of forest structural attributes in Val d?Agri (Basilicata, Southern Italy)

Forests supply multiple ecosystem services and host a large proportion of the Earth's terrestrial biodiversity. In particu-lar, they provide habitats for many taxonomic groups which can be threatened by forest unsustainable management prac-tices. Type and intensity of forest management are widely recognized as the main drivers of structure and functions in forests ecosystems. However, to better understand the im-pacts and the benefits deriving from forest management, there is a big need to standardize procedures of field data collection and data analysis. Here, we provide a georeferenced dataset of vertical and horizontal structure of forest types belonging to 4 habi-tat types, sensu Council Directive 92/43/EEC. The dataset in-cludes structural indicators commonly linked to old-growth forests in Europe, in particular the amount of standing and lying deadwood. We collected data on 32 plots (24 of 225 m 2 , and 8 of 100 m 2 , according to different forests type) during spring and summer of 2022, in Val d'Agri (Basilicata, Southern Italy). The dataset we provide follows the common national standard for field data collection in forest habitat types, published by ISPRA in 2016 with the aim to promote a greater homogeneity in assessment of habitat conservation status at Country and biogeographical level, as requested by the Habitats Directive.(c) 2023 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)