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We investigate the shift of travel intentions among Chinese residents following the end of China's Zero‐COVID policy in December 2022. Focusing on the 2023 Spring Festival, the first major holiday after the pandemic, we examine the factors influencing travel intentions, including travel experiences during COVID‐19, sociodemographics, infection and vaccination experiences, travel planned behaviours, health beliefs, and resilience. Using a cohort study approach, we conducted online surveys in two phases. Initial findings from 1, 263 respondents pre‐holiday indicated a moderate intention to travel (average 3.3 out of 5). The results reveal diminishing effects of COVID‐19 vaccination, infection experiences and health beliefs (perceived susceptibility, severity and benefits) over time. Past travel experiences, planned behaviours (attitudes, subjective norms and perceived behavioural control), perceived barriers and resilience significantly elevate travel intentions in the post‐COVID period. Additionally, a post‐holiday survey found that 44.3% of 79 participants had travelled, providing insight into the evolving travel tendencies. [ABSTRACT FROM AUTHOR]

Acid rain is a serious worldwide environmental problem which reduces the growth and yield of crops. Melatonin, as a pleiotropic molecule has been known to improve stress tolerance by limiting the oxidative damage of plants exposed to adverse environments. However, the role of exogenous melatonin particularly on the yield and antioxidant compounds in tomato fruits under abiotic stress condition remains inexpressible. This observation aims to identify the influence of melatonin treatment under simulated acid rain (SAR) condition on fruit qualities, phenolics, flavonoids, and carotenoids concentration in fruits, and yield of tomatoes. Our study results showed that the fruits of SAR-stressed plants had higher quality traits and antioxidant bioactive compounds by increasing antioxidant activities against SAR-induced oxidative stress compared with fruits of control plants. Nonetheless, these improvements to antioxidant activities in fruits under SAR-condition remained unable to prevent the reduction of the yield. However, SAR-stressed plants treated by melatonin exhibited upgradation on the fruit quality traits, antioxidant compounds and yield attributes through accelerating oxidant-scavenging antioxidant actions in fruits compared with fruits of SAR-stressed plants. Meanwhile, our results suggest that exogenous melatonin plays an important role in improvement of bioactive compounds and yield traits in tomato fruits through regulating antioxidant system. [ABSTRACT FROM AUTHOR]