Something Weird Is Happening to China’s 66-Billion-Tree ‘Great Green Wall’

  • تاريخ النشر: منذ يوم زمن القراءة: دقيقة قراءة

New study finds younger planted forests in China expand foliage faster, but the advantage fades with age.

The Wall Is a 48-Year Environmental Experiment

The New Study Was Not Limited to the Wall

Planted Forests Added Leaves 65.8% Faster

Their Younger Age Explains Much of the Gap

A Smaller Advantage Remained After Matching

Rising CO2 May Be Amplifying the Difference

Human Management Changes How the Trees Grow

The Advantage Fades After About 40 Years

More Leaves Do Not Equal More Stored Carbon

The Finding Changes the Climate Lesson

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China’s enormous environmental experiment has been watched for decades, but its latest development is not what researchers expected. A new study has uncovered a striking difference hidden inside the country’s expanding forests.

The finding sounds like an obvious victory at first. Look more closely, however, and the picture becomes far more complicated, raising questions about carbon, forest age and what happens when human-planted landscapes begin to mature.

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