Human activities have greatly increased reactive nitrogen (N) emissions to the atmosphere, resulting in an increasing global atmospheric nitrogen deposition. Existing stimulated nitrogen deposition experiments are carried out mostly in forests with low background nitrogen deposition, whose treatment durations are often short. In China, nitrogen deposition levels have remained steady in the last ten years at a relatively high level. Our understanding of how tree growth responds to long-term nitrogen addition is limited.
Click here for original story, Nitrogen deposition promotes tree growth and drives photosynthate allocation into wood in temperate and boreal forests
Source: Phys.org