Rising Nitrogen Levels Threaten Biodiversity of Nitrogen-Fixing Plants
A study reveals that human-induced nitrogen increases in the atmosphere threaten the diversity of nitrogen-fixing plants, crucial for ecosystem stability. Excess nitrogen makes these plants less competitive, reducing biodiversity. The findings challenge predictions that climate change could benefit such plants, highlighting ongoing negative impacts on ecological systems.
- Country:
- India
A new study highlights the detrimental effects of rising nitrogen levels in the atmosphere, attributed to human activities such as fertilizer use, on nitrogen-fixing plants. These plants, crucial for maintaining ecosystem stability, convert atmospheric nitrogen into essential nutrients required for growth.
Research conducted by Mississippi State University and other institutions found that excessive nitrogen from agriculture and industry has led to a decline in competitive abilities of nitrogen-fixing plants. This results in simplified plant communities and decreased species diversity, countering previous predictions about climate change benefits for these plants.
The study, published in 'Science Advances,' used data from the forestREplot database, showing significant losses in nitrogen-fixer species across study sites. The findings stress the rarely assessed but critical impacts of human-caused nitrogen deposition on global ecosystems and biodiversity.
(With inputs from agencies.)
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