Ecology: Some rivers keep the carbon they receive
Nature Communications
2012년12월12일
The broad valley bottoms of Headwater Rivers in the Rocky Mountains store the largest amount of above- and below-ground carbon finds a study published in Nature Communications this week. This finding suggests that rapid downstream export of terrestrial carbon does not occur in all mountainous rivers as previously thought.
Headwater rivers receive most of the terrestrial carbon entering a river network from nearby vegetation. Ellen Wohl and colleagues studied the type of carbon storage that occurs along these rivers by estimating organic carbon stored in the valleys of Headwater Rivers of the Rocky Mountain National Park, Colorado, USA. They found that while these valley segments make up less than 25% of the total river length, they can store up to 75% of the carbon. They conclude, therefore, that riverine carbon storage may represent a previously undocumented, but important carbon sink.
doi: 10.1038/ncomms2274
리서치 하이라이트
-
3월4일
Environment: Reservoirs account for more than half of water storage variabilityNature
-
3월2일
Evolution: Neanderthals may have heard just like usNature Ecology & Evolution
-
3월2일
Geoscience: Earth’s atmosphere may return to low-levels of oxygen in one billion yearsNature Geoscience
-
2월26일
Environment: Shifting from small to medium plastic bottles could reduce PET wasteScientific Reports
-
2월24일
Environment: European forests more vulnerable to multiple threats as climate warmsNature Communications
-
2월11일
Environment: Global CFC-11 emissions in declineNature
