Navigation Links
Key to cleaner environment may be right beneath our feet

UNIVERSITY PARK, Pa. -- While many people recognize that clean water and air are signs of a healthy ecosystem, most do not realize that a critical part of the environment is right beneath their feet, according to a Penn State hydrologist.

The ground plays an important role in maintaining a clean environment by serving as a natural water filtration and purification system, said Henry Lin, professor of hydropedology and soil hydrology. Understanding the components that make up this integral part of the ecosystem can lead to better groundwater management and smarter environmental policy.

"We look at nature and we see all the beauty and all the prosperity around us," said Lin, "But most people don't know or tend to forget that the key to sustainability is right underground."

Lin, who reports on his research today (Feb. 17) at the annual meeting of the American Association for the Advancement of Science in Boston, said that the earth's outer layer -- from the top vegetation canopy to the strata of soils and layers of underground material -- helps soak up and purify water by extracting excess nutrients, heavy metals and other impurities. The ground can also act as a storage container for freshwater.

About 60 percent of the world's annual precipitation ends up in this zone, Lin said. "In fact, there is more water under the ground than there is in the so-called 'blue waters,' such as lakes and rivers," said Lin.

Besides using freshwater for drinking, people use large amounts of water to irrigate agricultural fields and as part of industrial operations. The researcher said that just as a global green revolution raised awareness about food security, a "blue revolution" may lead to efforts to water security with clean, safe water supply around the globe.

"Without water there is no life," Lin said. "Without groundwater, there is no clean water."

Lin said that the system is currently under threat from poor land management practices that fail to consider how ground water is affected by land uses, such as new building projects, underground storage and agricultural operations. Planners should consider, for example, how the ground and plants in an area can affect water run-off. In some cases, not taking the ground and underground features of an area into consideration can lead to flooding, or to the addition of impurities into drinking water supplies.

Besides reaching out to managers and planners, Lin said that the general public also must become more aware of groundwater management issues.

"In a lot of cases, for the general public and even people from government agencies and funding agencies, it's out of sight, out of mind," Lin said. "But, beneath the surface lies the foundation of our sustainability."

Contact: Matthew Swayne
Penn State

Related biology news :

1. Arsenic for better drugs and cleaner crops
2. Mussels cramped by environmental factors
3. U-M environmental scientist Joel Blum wins 2013 Patterson Award for research on mercury
4. Environment schemes for kids influence parents behavior
5. Book shows evolution that joins human and environmental sciences
6. Environmental factors determine whether immigrants are accepted by cooperatively breeding animals
7. Healthy seeds -- treated environmentally friendly
8. AERA announces publication of the International Handbook of Research on Environmental Education
9. The effective collective: Grouping could ensure animals find their way in a changing environment
10. New study highlights impact of environmental change on older people
11. Fluctuating environment may have driven human evolution
Post Your Comments:
(Date:6/2/2016)... 2, 2016   The Weather Company , an IBM ... an industry-first capability in which consumers will be able to ... ask questions via voice or text and receive relevant information ... Marketers have long sought an advertising solution that ... be personal, relevant and valuable; and can scale across millions ...
(Date:5/24/2016)... IRVINE, Calif. , May 24, 2016 Ampronix facilitates superior patient care ... LMD3251MT  3D medical LCD display is the latest premium product recently added to ... ... ... Sony 3d Imaging- LCD Medical Display- Ampronix News ...
(Date:5/12/2016)... , a brand of Troubadour Research & ... Q1 wave of its quarterly wearables survey. A particular ... a program where they would receive discounts for sharing ... "We were surprised to see that so many ... CEO of Troubadour Research, "primarily because there are segments ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... In a new case ... Denmark detail how a patient who developed lymphedema after being treated for breast cancer ... could change the paradigm for dealing with this debilitating, frequent side effect of cancer ...
(Date:6/23/2016)... -- Andrew D Zelenetz , ... Published recently in Oncology & ... Andrew D Zelenetz , discusses the fact ... placing an increasing burden on healthcare systems worldwide, ... the patents on many biologics expiring, interest in ...
(Date:6/23/2016)... Prairie, WI (PRWEB) , ... June 23, 2016 ... ... consultancy focused on quality, regulatory and technical consulting, provides a free webinar ... is presented on July 13, 2016 at 12pm CT at no charge. , ...
(Date:6/23/2016)... , June 23, 2016 ... market research report to its pharmaceuticals section with ... product details and much more. Complete ... across 151 pages, profiling 15 companies and supported ... at . The ...
Breaking Biology Technology: