Can trees be weathermen, too?

There is an elm tree next to Dateng Village, Gaoguan Township, Hexian County, Anhui Province. Surprisingly, this is a "meteorological tree" that can predict the drought and flood in that year.

People can infer the rainfall of that year according to the time when trees germinate and the density of leaves. If this tree sprouts in front of Grain Rain, it will be a signal that there will be more rain, the water level will rise and there will often be floods. If it germinates on time and leaves grow sparsely and densely like other trees, it will be a good year with good weather. If germination is delayed and leaves grow less, it means that there is less rain and the drought is very serious.

Decades of observation data prove that it is quite accurate to predict the drought and flood in that year. After a preliminary investigation, scientists believe that it may be that this tree is particularly sensitive to the ecological environment, which has played such a strange role.