Take care of your plants! They may “shout” if you treat them badly.
照顾好你的植物！如果你对它们不好，它们可能会“大喊大叫”。
Plants can make sounds when they feel stressed, according to a recent study. “Plants use sound to communicate with animals all the time, so it would be very inconvenient for plants not to use sound at all.” Lilach Hadany, co-author of the study, told Science Focus.
最近的一项研究表明，植物在感到压力时会发出声音。该研究的合著者Lilach Hadany告诉《科学焦点》杂志：“植物一直在用声音与动物交流，所以植物完全不使用声音会非常不方便。”
With this in mind, the research team started by recording plants’ sounds. They put sweet-pepper and tomato plants in soundproof boxes to shut off the noise in the environment. Several ultrasonic microphones were then put near the plants, which can record between 20 and 250 kilohertz. A human adults ear can hear about 16 kilohertz. There were three groups of plants: One group wasn’t watered for five days, another group had some parts cut off and the last group was untouched. The microphones caught sounds from 40 to 80 kilohertz from the fist two groups. The sound, which was similar to the noise of popcorn popping grew louder and louder during the five days of water stress. They then began to become weaker and weaker as the plants dried out. A stressed plan produced the popping sound around 30 to 50 times per hour, while the untouched group only produced around once per hour, according to the study.
考虑到这一点，研究小组开始记录植物的声音。他们把甜椒和番茄植物放在隔音箱里，以隔绝环境中的噪音。随后，在植物附近放置了几个超声波麦克风，可以记录20到250千赫兹的频率。成年人的耳朵可以听到大约16千赫兹的声音。有三组植物：一组五天没有浇水，另一组被切掉了一些部分，最后一组不做改变。麦克风捕捉到了前两组40到80千赫兹的声音。在五天的水分胁迫期间，这种类似于爆米花爆裂声的声音越来越大。然后，随着植物的枯萎，它们开始变得越来越弱。根据这项研究，一个有压力的计划每小时产生大约30到50次爆裂声，而未受影响的组每小时只产生大约一次爆裂声。
