期刊
AGRICULTURAL & ENVIRONMENTAL LETTERS
卷 4, 期 1, 页码 -出版社
WILEY
DOI: 10.2134/ael2018.11.0059
关键词
-
资金
- USDA FSA [AG-3151-P-17-0164]
- Illinois Nutrient Research and Education Council (NREC)
Because saturated buffers are a new conservation practice, there has been no large-scale assessment of their potential to aid in meeting water quality goals. Publicly available data were used in a stepwise fashion within a geographic information system to estimate the total stream length suitable for saturated buffer implementation across the US Midwest region and the resulting potential nitrate loading reduction from widespread saturated buffer implementation. Approximately 37,760 km of streams (or 75,520 km of stream bank) was deemed suitable to host a saturated buffer, and 3.85 million ha of drained land has the potential to drain to a saturated buffer. These results suggest that implementing saturated buffers widely could result in a 5 to 10% reduction of the estimated N load from midwestern tile-drained land. Saturated buffers can be an important component of plans to achieve water quality goals.
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