Dew formation reduction in global warming experiments and the potential consequences

• Dew plays a vital role in dryland ecosystems and will be affected by climate change. Infrared heater warming system markedly reduces dew amount duration. Shift plant functional groups with leads to changes formation. Ignoring reduction may lead overestimation of the effects Dew, as an important contribution non-rainfall water (NRW), ecosystem processes arid semi-arid regions is expected warming. systems have been widely used simulate on ecosystems. However, how this affects formation has long ignored rarely addressed. In typical alpine grassland northeast Tibetan Plateau, we measured duration using three independent methods: artificial condensing surfaces, leaf wetness sensors situ plants from 2012 2017. We also traits related conditions. The results showed that (1) reduced 41.6%-91.1% depending measurement method, 32.1 days compared ambient condition. (2) Different differed (3) Under infrared treatment, decreased height, while under conditions, opposite trend. concluded greatly formation, if ignored, it change simulation studies.