Nuoro Forestry School - Università di Sassari - ITALY: First assessment of pinus plantations site quality...: "The purpose of this work is to determinate the environmental factors that influence on the Pinus spp. stand yield. This work is a support ...
Processing the first round of measurements we have obtained some interesting results.
Considering that elevation is directly related to precipitation, which is the most limiting factor in Mediterranean ecosystems, for the first round this factor was used to stratify the sampling. Using the rpart function of statistical software R, that applies the recursive partitioning algorithm, it appeared that rather than elevation it would be promising to consider the North-South aspect direction as stratification guide.
Actually this second factor is related to irradiance an site humidity. This result may be important for future stratification in order to estimate stands fertility.
This work, such as previously described, stopped at the first iteration, has been presented the last July as a of Master degree thesis in Foresty and Environmental science. In order to support the "Legno…" project this work should be concluded. Just for this we are preparing a project to send to the Regione Autonoma della Sardegna in the hope to get funding that allow us to stratify the forest district of Arci-Grighine according to fertility of coniferous plantation.
