But if humanity doesn't cut back on the nitrogen it pumps into the environment, we could choke the oceans and ourselves.
- Agriculture and the Nitrogen Cycle.
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- 9(s) The Nitrogen Cycle.
- Nitrogen Fertilization in the Environment - CRC Press Book.
The first, a review of earlier nitrogen pollution studies, charts the incredible growth of nitrogen in the environment. The second quantifies nitrogen added by human activity to the oceans. The problem isn't strictly nitrogen, which comprises more than three-quarters of the air we breathe, but so-called reactive nitrogen. These are analogous to better-known free oxygen radicals: an altered electron configuration makes them especially unstable, and more likely to wreak environmental havoc. In , humanity produced 15 metric tons of reactive nitrogen.
By , that number stood at tons, and swelled to tons by Those numbers are small in comparison to global CO2 emissions — 27 billion tons annually — but the impacts are magnified by what James Galloway, a University of Virginia biogeochemist and co-author of the review, calls the nitrogen cascade. Over time, that moves through the atmosphere, into the soil, into the water, into the coastal systems and back into the atmosphere," he said.
Some of it comes from industry, but mostly from crop fertilizers. The Haber-Bosch process , in which nitrogen, hydrogen and iron sulfate are mixed to make nitrogen fertilizer, is a mainstay of modern agriculture.
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We have to do this to create enough food to feed us," said Galloway. Flexible - Read on multiple operating systems and devices. Easily read eBooks on smart phones, computers, or any eBook readers, including Kindle. When you read an eBook on VitalSource Bookshelf, enjoy such features as: Access online or offline, on mobile or desktop devices Bookmarks, highlights and notes sync across all your devices Smart study tools such as note sharing and subscription, review mode, and Microsoft OneNote integration Search and navigate content across your entire Bookshelf library Interactive notebook and read-aloud functionality Look up additional information online by highlighting a word or phrase.
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Free Shipping Free global shipping No minimum order. The only source which presents an international, wholistic perspective of the effects of nitrogen in the environment with worldwide mitigation practices Provides details on how to improve the quality of the environment by analyzing the development of emerging technologies Develops strategies to be used by soil scientists, agronomists, hydrologists, and geophysicists for broad scale improvement of nitrogen efficiency.
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