Chemistry 2011.org
Chemistry2011.org
All About Chemistry... 2011 and beyond

Related Stories

Hypoxia Issues in the Gulf of Mexico

Oct. 24, 2013 — The Mississippi River Basin is home to much of the United States' fertile crop land. Though we need our food and energy crops, their production has led to an increase in the levels of nutrients such as nitrogen and phosphorus in our water sources. Increasing nutrient levels affects our rivers, lakes, and oceans. Single cell plants, called phytoplankton, feed off the increased nutrients, and in doing so start a cascade of events that leads to low oxygen levels in the water bodies. This low oxygen condition is called hypoxia. The result is dying fish and a poor ecosystem, called a "dead zone."

The dead zone in the Gulf of Mexico, where the Mississippi meets the ocean, has received much attention in the last decade, and led to the creation of the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force.

"We need to see an increase in the rate of implementing practices that lower nutrient export," says Matt Helmers, PhD, of Iowa State University, and member of the Soil Science Society of America. "Cover crops not only decrease the amount of nitrogen and phosphorus leaving the fields, but they improve the soil in other ways. Subsurface drainage bioreactors -- often called wood chip trenches -- and specialized wetland systems also reduce nutrient export."

Helmers admits the "challenges are more complex than changing the inputs to our crops," such as corn and soybean. And, because there are not short-term financial gains to most of the practices that reduce nutrient export, the industry may be slower to adopt change. "If we don't show reduced nitrogen and phosphorus export, we may see regulation."


Note: If no author is given, the source is cited instead.

The source of this article can be found at: agronomy.org/news-media/releases/2013/1024/615/" rel="nofollow' target='_blank'>https://www.agronomy.org/news-media/releases/2013/1024/615/" rel="nofollow

Share this story with your friends!

Social Networking

Please recommend us on Facebook, Twitter and more:

Other social media tools

Global Partners
Feedback

Tell us what you think of Chemistry 2011 -- we welcome both positive and negative comments. Have any problems using the site? Questions?

About us

Chemistry2011 is an informational resource for students, educators and the self-taught in the field of chemistry. We offer resources such as course materials, chemistry department listings, activities, events, projects and more along with current news releases.

Events & Activities

Are you interested in listing an event or sharing an activity or idea? Perhaps you are coordinating an event and are in need of additional resources? Within our site you will find a variety of activities and projects your peers have previously submitted or which have been freely shared through creative commons licenses. Here are some highlights: Featured Idea 1, Featured Idea 2.

About you

Ready to get involved? The first step is to sign up by following the link: Join Here. Also don’t forget to fill out your profile including any professional designations.

Global Partners