The strange disappearance of poplar trees

A lot of long stories have been told about the noticeable drop in the number of vibrating poplar trees in the western United States. In fact, things are much worse than what is said. What's happening?

Poplar (Photo: so-utah.com)

Poplars are plants that regenerate by sprouting from the roots, more than seeds. That means when a poplar for some reason dies, you can wait thousands of plant sprouts to bounce from the roots. But what we now see is that only the roots begin to die and there are no sprouting plants.

In Colorado - home to about 810,000 hectares of poplar forests, scientists often conduct an annual survey on airplanes. As a result, in the San Juans forest, about one-tenth of the 120,000 hectares of positive land did not exist.

The most common sign that scientists find is that poplar forests are being " stressed ". And then, factors like plant diseases, or insects, insects will kill the tree. However, the cause is not found behind the " stress " status. The widespread situation made it impossible for scientists to condemn a single factor.

In general, this phenomenon may be a more natural phenomenon than a widespread disease in plants. That may be the cause of the climate, because for many years the United States has often suffered from severe droughts. But the strange thing is that there are poplar trees in very wet areas still die.

Burning the trunk is a measure to be taken in return for the loss of poplar trees. Scientists say that living poplar trees will produce auxin - a plant-stimulating hormone that prevents the budding of plant roots. If we burn mature poplars, the roots of the roots can sprout and start growing. Sometimes it is only necessary to froze seedlings, avoiding destructive animals, which is a good protection for this plant.