Trees in the world¹s most productive forests -- forests that add the most new growth each year -- also tend to die young, according to a U.S. Geological Survey (USGS) study published in a recent issue of the journal Ecology Letters. This discovery could help scientists predict how forests will respond to ongoing and future environmental changes.
"One implication of this fast turnover rate is that the world¹s most productive forests may be those likely to respond most quickly to such things as climatic change," said Nate Stephenson, a USGS research ecologist in Three Rivers, Calif., and lead author of the article.
"You can view a forest like a bank account," said Stephenson. "As long as deposits and withdrawals are similar, your balance remains stable. But if the deposits or withdrawals are disrupted, the balance changes."
Nate Stephenson | EurekAlert!
Microjet generator for highly viscous fluids
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For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
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Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
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Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
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Let’s say the armrest is broken in your vintage car. As things stand, you would need a lot of luck and persistence to find the right spare part. But in the world of Industrie 4.0 and production with batch sizes of one, you can simply scan the armrest and print it out. This is made possible by the first ever 3D scanner capable of working autonomously and in real time. The autonomous scanning system will be on display at the Hannover Messe Preview on February 6 and at the Hannover Messe proper from April 23 to 27, 2018 (Hall 6, Booth A30).
Part of the charm of vintage cars is that they stopped making them long ago, so it is special when you do see one out on the roads. If something breaks or...
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