Climate change and pollution that we are witnessing in recent decades all over the world act on forests negatively influencing the substrate, the growth of the trees, biodiversity, increasing the susceptibility of plants to stress the dangers of fire

In the recent decades climate change and O3 pollution are the main factor that influencing negatively the substrate, the growth of the trees, and biodiversity of the forests increasing the susceptibility of plants to stresses and dangers of fire. In Italy, since 1996 the CON.ECO.FOR. program (Monitoring of forest ecosystems), co-financed by the European Union and managed by the State Forestry Corps, monitors the conditions of the forests in an integrated way, making sure the changes that can occur in various biological and ecological receptors (hair conditions: transparency and non-biotic and abiotic growth and forest structure, biodiversity, chemical status of soil and leaves) in relation to environmental pressures (atmospheric deposition, gaseous pollutants, climate change). The first results of the program showed, among other things, that the ozone concentrations are high everywhere, and tend to increase over time. The increased ozone pollution was monitored in the Center-South Italy, but the biggest impact in terms of visible symptoms on plants, has been identified in the Alps area, during the summer 2003. Campania Region, with a total forest area of about 400,000 hectares of which approximately 5,400 state-owned, has always been sensitive to the problem of climate change, has put together several tools to combat this phenomenon, including the financing, through the various tools available European Union (Regulation 2080/92 and 1698/2005 which led to the Campania of the Rural Development Programme 2007-2013), programs with which it has promoted afforestation or reforestation of large areas of farmland and not. Forest reproductive material used in these programs are exclusively those from native forests by seed identified throughout the region and included in the Regional Book Basic Materials (RBBM). Through the regional project "Identification of Basic Materials in Campania" in accordance with Directive 1999/105/EC and the Legislative Decree 386/2003, the project has identified and incorporated into The RBBM different "forest seed" materials where you can pick up the propagation of different species. The use of propagation material from local forests to deliver better results in terms of engraftment and resistance to parasitic diseases, prevents pollution of the gene pool to ensure the conservation of forest bells local ecotypes and the subsequent maintenance of genetic biodiversity and thus serves to counter the effects of climate change on forest ecosystems. In this contest were reported the decadal results of this activity with enphasis to most important results obtaine