Impacts of drought events on terrestrial ecosystems have been studied extensively in the last decades in light of the long-term human-induced global warming trend and the recent occurrence of severe heat waves and droughts across the globe. The 2003 European summer heat wave sparked high attention towards such events in Switzerland, where ecosystems were largely affected again by summer dry periods in 2015 and 2018. With a newly applied processing scheme of calculating fluxes of net ecosystem exchange of CO₂, latent and sensible heat from eddy-covariance measurements, the impact of droughts on $GPP$ and exchange of energy between land and atmosphere are investigated at a managed grassland site in Switzerland. The rate of primary production is considerably reduced under the influence of dry conditions. This effect is further intensified by grassland management. Evapotranspiration, on the other hand, seems to be unaffected by the lack of precipitation at the site.

鉴于人类引起的长期全球变暖趋势以及最近在全球范围内发生的严重热浪和干旱，干旱事件对陆地生态系统的影响在过去几十年中得到了广泛的研究。2003 年欧洲夏季热浪在瑞士引发了对此类事件的高度关注，2015 年和 2018 年夏季干旱期再次严重影响了瑞士的生态系统。采用新应用的计算 CO ₂净生态系统交换通量的处理方案，潜在和敏感来自涡度协方差测量的热量，干旱的影响$G磷磷$在瑞士的一个受管理的草地上研究了陆地和大气之间的能量交换和能量交换。在干燥条件的影响下，初级生产力大大降低。草原管理进一步加强了这种影响。另一方面，蒸发蒸腾似乎不受该地点降水不足的影响。