Ecosystem leaf area, gross primary production, and evapotranspiration responses to wildfire in the Columbia River Basin

摘要: Wildfires impact the provision of ecosystem services and are increasing in intensity, 18 frequency, and spatial area globally. The rate of vegetation recovery after fire plays a major role 19 in the recovery of ecosystem services, but such recovery rates are poorly understood. Here we 20 used remotely sensed data products from the Moderate Resolution Imaging Spectroradiometer 21 (MODIS) to quantify the resistance and resilience of leaf area index (LAI), gross primary 22 production (GPP), and evapotranspiration (ET) to 138 wildfires across the Columbia River Basin 23 of the Pacific Northwest in 2015. Increasing burn severity caused lower resistance and resilience 24 for all three variables. Resistance and resilience were highest in grasslands, intermediate in 25 woodlands, and lowest in needleleaf evergreen forests, consistent with adaptation of these 26 vegetation types to fire. LAI had consistently lower …