Nitrate-nitrogen retention in wetlands in the Mississippi river basin

被引:201
作者
Mitsch, WJ
Day, JW
Zhang, L
Lane, RR
机构
[1] Ohio State Univ, Sch Nat Resources, Olentangy River Wetland Res Pk, Columbus, OH 43202 USA
[2] Louisiana State Univ, Dept Oceanog & Coastal Sci, Coastal Ecol Inst, Sch Coast & Environm, Baton Rouge, LA 70803 USA
关键词
wetland; Mississippi River Basin; restoration; Olentangy River Wetland Research Park;
D O I
10.1016/j.ecoleng.2005.02.005
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Nitrate-nitrogen retention as a result of river water diversions is compared in experimental wetland basins in Ohio for 18 wetland-years (9 years x 2 wetland basins) and a large wetland complex in Louisiana (I wetland basin x 4 years). The Ohio wetlands had an average nitrate-nitrogen retention of 39 g-N m(-2) year(-1), while the Louisiana wetland had a slightly higher retention of 46 g-N m(-2) year(-1) for a similar loading rate area. When annual nitrate retention data from these sites are combined with 26 additional wetland-years of data from other wetland sites in the Basin Mississippi River (Ohio, Illinois, and Louisiana), a robust regression model of nitrate retention versus nitrate loading is developed. The model provides an estimate of 22,000 km(2) of wetland creation and restoration needed in the Mississippi River Basin to remove 40% of the nitrogen estimated to discharge into the Gulf of Mexico from the river basin. This estimated wetland restoration is 65 times the published net gain of wetlands in the entire USA over the past 10 years as enforced by the Clean Water Act and is four times the cumulative total of the USDA Welland Reserve Program wetland protection and restoration activity for the entire USA. (c) 2005 Published by Elsevier B.V.
引用
收藏
页码:267 / 278
页数:12
相关论文
共 33 条
[1]  
*AM PUBL HLTH ASS, 1992, STAND METH AN WAST
[2]  
American Public Health Association, 1989, STAND METH AN WAST
[3]  
[Anonymous], 1999, NOAA COASTAL OCEAN P
[4]  
BREZONIK PL, 1999, NAOAA COASTAL OCEAN, V18
[5]  
DAHL TE, 1980, WETLAND LOSSES US 17
[6]   Using Ecotechnology to address water quality and wetland habitat loss problems in the Mississippi basin: a hierarchical approach [J].
Day, JW ;
Arancibia, AY ;
Mitsch, WJ ;
Lara-Dominguez, AL ;
Day, JN ;
Ko, JY ;
Lane, R ;
Lindsey, J ;
Lomeli, DZ .
BIOTECHNOLOGY ADVANCES, 2003, 22 (1-2) :135-159
[7]  
Doering O.C., 1999, NOAA COASTAL OCEAN P, V20
[8]   Seasonal and storm event nutrient removal by a created wetland in an agricultural watershed [J].
Fink, DF ;
Mitsch, WJ .
ECOLOGICAL ENGINEERING, 2004, 23 (4-5) :313-325
[9]  
Galloway JN, 2003, BIOSCIENCE, V53, P341, DOI 10.1641/0006-3568(2003)053[0341:TNC]2.0.CO
[10]  
2