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nitrogen

Field of dead and burned trees in the San Bernardino National Forest. Researcher Fabiola Pulido-Chavez stands among them with her back turned toward the camera.
Posted inNews

Wildfires May Alter the Nitrogen Cycle—and Air Pollution

by Krystal Vasquez 16 December 20217 July 2022

Research indicates that wildfires could be bolstering soil emissions of air pollutants that contribute to smog and climate change.

A grassy landscape next to a river and the ocean.
Posted inNews

A Global Map of Human Sewage in Coastal Ecosystems

Katherine Kornei, Science Writer by Katherine Kornei 3 December 202127 March 2023

Prodigious quantities of nitrogen from human waste flow into coastal waters, a study of nearly 135,000 watersheds reveals.

Posted inEditors' Highlights

What Controls Nitrous Oxide Emissions from Rivers?

by Nicolas Gruber 22 November 202128 March 2022

Statistical and numerical models show that denitrification efficiency is a key parameter controlling the production of N2O from rivers, providing a target for river restoration projects.

Lake Cadagno—an alpine lake in Switzerland with calm blue-green waters surrounded by sharp-peaked mountains
Posted inNews

Purple Bacteria Fix Nitrogen in Proterozoic-Analogue Lake

by Elise Cutts 28 September 202117 February 2023

A new study challenges the assumption that cyanobacteria were the only major nitrogen fixers in the Proterozoic eon.

路边的沟渠可以在水进入水道之前有效地将水中的氮去除。图片来源: Corianne Tatariw
Posted inResearch Spotlights

路边沟渠可有效脱氮

Sarah Derouin, Science Writer by Sarah Derouin 7 September 202129 March 2023

研究人员比较了那些为森林、城市和农业用地排水的沟渠中微生物的脱氮潜力,发现路边沟渠是去除养分的重要区域。

Photo of two corn hybrid species growing in a field. The adult hybrid plants at left are green, whereas the hybrid plants at right are yellow and dried.
Posted inNews

Index Suggests That Half of Nitrogen Applied to Crops Is Lost

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 23 August 202130 March 2023

Food production is becoming less efficient at using nitrogen fertilizer, according to a review of global values. Excess nitrogen damages the environment and the climate.

Roadside ditches can remove nitrogen from water before it gets to waterways.
Posted inResearch Spotlights

Roadside Ditches Are Effective at Nitrogen Removal

Sarah Derouin, Science Writer by Sarah Derouin 4 August 202130 March 2023

Researchers compared the nitrogen removal potential by microbes in ditches that drained forested, urban, and agricultural lands and discovered that roadside ditches are important areas for removing nutrients.

‘Oumuamua已经在星际空间中游荡了数百万年
Posted inResearch Spotlights

‘Oumuamua可能是类冥王星系外行星的冰碎片

Sarah Stanley, Science Writer by Sarah Stanley 28 June 202121 February 2023

研究人员认为氮冰是最可能构成这一神秘星际物体的物质。

‘Oumuamua has tumbled through interstellar space for millions of years.
Posted inResearch Spotlights

‘Oumuamua May Be an Icy Fragment of a Pluto-Like Exoplanet

Sarah Stanley, Science Writer by Sarah Stanley 19 May 202121 February 2023

Researchers favor nitrogen ice as the most likely material for the mysterious interstellar object’s composition.

Posted inResearch Spotlights

A Well-Balanced Ecosystem Uses Water Most Efficiently

Elizabeth Thompson by Elizabeth Thompson 13 May 20216 March 2023

Excess of a single nutrient, such as nitrogen, may boost plant productivity, but the imbalance leads to less efficient water use as plants scramble for the nutrients they lack.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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