It is difficult for search teams to find human remains on the open ground, but it will be more challenging to search in dense forests. < / P > < p > under the leadership of Professor Neal Stewart Jr., a team from the University of Tennessee will soon conduct experiments at the University’s anthropological research facility, also known as the human farm. These experiments will examine how the decomposition Island, the area next to the corpse, alters the nutrients in the adjacent soil and, in turn, changes the plants growing in that soil. < / P > < p > “the most obvious result of the islands will be the release of large amounts of nitrogen into the soil, especially when decomposition is so rapid in summer,” Stewart said. “Depending on the rate at which plants respond to nitrogen influx, it can cause changes in leaf color and reflectance.” < / P > < p > that is, the bodies of large animals like deer are likely to affect plants in the same way. To this end, scientists will also study how human specific compounds can change the appearance of plants. For example, if a particular missing person is a heavy smoker, their body’s impact on surrounding plants will be different from that of non-smokers – these types of changes can help staff narrow the focus of their search. < / P > < p > the team has created a device that can analyze the fluorescence signals of an entire plant. However, it still needs to be improved and miniaturized before it can be used in UAV. Even so, the technology is designed to help ground searchers, not to replace them. < / P > < p > “when you start thinking about deploying drones to look for specific emissions, we can now think of the signal as more like checking the engine lights,” says Stewart. “If we can fly quickly to places where someone might be missing and collect tens or even hundreds of square kilometers of data, then we will know the best place to send a search team.” This study is described in a recent paper published in trends in plant science. Global Tech