Grass Filter Strip in Farmland : 無料・フリー素材/写真
Grass Filter Strip in Farmland / eutrophication&hypoxia
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Use of a grass filter strip to protect soil and improve water quality in Carrol County, Iowa. Grass filter strips trap sediment, nutrients and other agricultural derivatives thereby improving water quality. Photo Credit: U.S Department of Agriculture |
| 撮影日 | 2010-12-10 13:23:10 |
| 撮影者 | eutrophication&hypoxia |
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