Longer Growing Seasons Cause Hydrological Regime Shifts in Central European Forests
نویسندگان
چکیده
In this study, we present evidence for a hydrological regime shift in upland central European forests. Using combination of long-term data, detailed field measurements and modelling, show that there is prolonged persistent decline annual runoff:precipitation ratios most likely linked to longer growing seasons. We performed long term (1950–2018) water balance simulation Czech forest headwater catchment calibrated against measured streamflow transpiration from deciduous coniferous stands. Simulations were corroborated by (1965–2018) borehole historical drought reports. A positive negative balances occurred the early part century. Since 2007, have been below average. Annual average temperatures increased, but no notable trends precipitation. 1980, has pronounced April warming, leading earlier leaf out higher transpiration, making unavailable runoff generation and/or soil moisture recharge. Our results suggest due second order effects climate change where increased associated with season leads light limitation This will require new approaches managing forests previously not problem.
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ژورنال
عنوان ژورنال: Forests
سال: 2021
ISSN: ['1999-4907']
DOI: https://doi.org/10.3390/f12121656