Annual Report 2023 UPM Forestal Oriental

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IN 2023

ENVIRONMENTAL VALUES

SOIL

PAIRED SAMPLING SITES +100

Plantations are mainly established on lands that “prioritise forestry”. Since 2010 we have implemented a monitoring programme for planted areas which has as its main objectives: Identifying possible changes in the physicochemical properties of soils when their use changes Appraising the relevance of corrective measures to ensure productivity and environmental sustainability Use the resulting information as another tool when reviewing procedures

MORE THAN 70 OF WHICH HAVE ALREADY BEEN MONITORED TWICE OR MORE

8

The soil monitoring programme covers the main CONEAT (National Commission for the Agronomic Study of the Land) groups and among them the most relevant kinds of soil. New monitoring sites are added annually to cover all classes and kinds of soils. At each site, a planted area and an adjacent unplanted area are sampled. Every five years (approximately twice per forest cycle) the values of each sample site are measured again. At the end of 2023 the soil monitoring programme had more than 100 paired sampling sites, 70 of which have already been monitored twice or more.

NEW MONITORING POINTS

WERE ADDED TO MEASSURE PHYSICOCHEMICAL PROPERTIES AND ENDURANCE

Results obtained show that, in soils used for forestry and after several years, variations in some of their chemical parameters may occur. However, these possible variations did not generate any environmental impact and are easily agronomically reversible through conventional practices. Changes in the chemical properties of the soil are also recorded in soils under agricultural use.