Rising concentrations of atmospheric CO₂ have increased growth in natural stands of quaking aspen (Populus tremuloides)

Agriculture & Biology

• Populus tremuloides 100%
• heterozygosity 68%
• forest ecosystems 59%
• net primary productivity 34%
• carbon sinks 31%
• boreal forests 31%
• temperate forests 30%
• dominant species 27%
• gardens 25%
• complement 22%
• climate change 22%
• climate 20%
• drought 20%
• ecosystems 19%
• clones 17%
• gender 16%
• genotype 15%

Earth & Environmental Sciences

• heterozygosity 36%
• forest ecosystem 25%
• moisture 19%
• net primary production 15%
• carbon sink 15%
• ecosystem process 14%
• temperate forest 14%
• genotype 14%
• clone 14%
• garden 13%
• boreal forest 13%
• Northern Hemisphere 11%
• field study 11%
• drought 10%
• analysis 3%
• effect 3%

Chemical Compounds

• Ecosystem 94%
• Carbon Atom 12%