Climate Change in the Provenance Regions of Romania over the Last 70 Years: Implications for Forest Management

The recent climate change scenarios show significant increases in temperature and extreme drought events Southern Eastern Europe by the end of 21st century, which will have a serious impact on forest growth adaptation, important consequences for management. system provenance regions, according to OECD Scheme EU Directive, was thought encourage use local seed sources, under concept ‘local is best’. However, changing faster than some species or populations can adapt migrate, raises uncertainties with respect future performance populations. In Romania, as other countries, delimitation regions based geographical, ecological vegetation criteria. aim this study evaluate: (1) that has occurred at level regions; (2) be most vulnerable change; (3) types certain region; (4) changes climatic envelope species. Several parameters an ecoclimatic indices been calculated analyzed subregions sectors (forest types) during period 1951–2020. results highlight general shift towards warmer drier conditions last 30 years, mean annual increasing 0.3–1.1 °C across subregions. De Martonne aridity index season shows 86% fell into arid semiarid categories, indicates very high degree vulnerability On Lang rainfall index, steppe all pure mixed pedunculate oak forests, thermophile species, meadow poplar willow, Turkey Hungarian forests. Ellenberg coefficient highlights warming process more evident along altitude increase lower edge distribution. envelopes many already shifted another ecosystem’s climate. This paper presents importance re-delineation production deployment reproductive materials decades, fundamental tool adaptive