Is Drain Tiling Causing Smaller Wetlands To Fade Out?

Are the Prairie Pothole wetlands drying up? A study by the U.S. Geological Survey says so.

USGS scientists analyzed data on 141 large Prairie Pothole Region wetlands in North Dakota from the 1930s through 2010 and found they have increased significantly in size. That’s mostly in part because of the drainage of smaller wetlands, possibly for more efficient agricultural production. The Prairie Pothole Region includes a large chunk of three Canadian provinces (Alberta, Saskatchewan and Manitoba), eastern North and South Dakota, western Minnesota and a small portion of northern Montana.

Prairie Pothole Region


According to a recent press release from the USGS, small wetlands in the Prairie Pothole Region are economically and environmentally important because they help recharge local and regional groundwater. They also provide habitat for 50 to 80 percent of North American ducks.

So are farmers really helping themselves out by installing drainage tile, like much of western Minnesota saw about 15 years ago?

The USGS says it’s actually a determent in the long run. The news from the USGS says drainage of small wetlands can cause local and regional flooding, because as wetlands grow, their likelihood of spillover increases.  Less drained areas, according to the USGS, with many small wetlands help store water from snowmelt or precipitation, where it evaporates or seeps into the ground.

Drainage for agriculture is happening all over in the Prairie Pothole Region. But for our waterfowl population to stay high, we need the small wetlands, and we certainly hope farmers don’t become overly reliant on drainage systems such as tiling all over the Prairie Pothole Region.



1 Response

  1. 高品質2015シャネル スーパーコピー激安專門店弊社は海外大好評を博くシャネル コピー激安老舗です,2015高品質シャネル バッグ コピー,シャネル 靴 コピー,シャネル 財布 コピー品の品質はよくて、激安の大特価でご提供します。
    2015年の新素材-新作!高品質 腕時計高品質の追求 超N品を良心価格で提供詳しくは以下のようなブランドがあります。HERMES(バッグ、財布、時計) CHANEL(バッグ、財布、時計)LOUIS VUITTON(バッグ、小物、財布、時計) BVLGARI(財布、時計)Christian Dior(バッグ、財布) COACH(バッグ、財布)GUCCI(バッグ、財布) ROLEX(時計)OMEGA(時計) IWC(時計)FRANCK MULLER(時計) HUBLOT(時計)クロエ CHLOE バッグなどです。ご不明点が ございましたらお気軽にお問い合わせください

Leave a Reply