Agropyron cristatum green strip : 無料・フリー素材/写真
Agropyron cristatum green strip / Matt Lavin
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | The main highways in the Upper Snake River plains, including within the Idaho National Laboratory, are lined with crested wheatgrass green strips, such as here along Lincoln Blvd, about midway between the main north and south entrances, Butte County, Idaho. Undisturbed sagebrush steppe sits a couple of hundred meters away in the background. A mix of green strip and sagebrush steppe in-between suggests that sagebrush steppe can advance into the green strip in these setting where humans have little impact (e.g., no livestock grazing occurs in much of the lands administered by the Idaho National Laboratory. For example, native shrubs such as Artemisia tridentata, Chysothamnus viscidiflorus, and Grayia spinosa are common throughout the green strip but crested wheatgrass bunches are lacking from the adjacent sagebrush steppe. |
| 撮影日 | 2011-06-17 14:13:31 |
| 撮影者 | Matt Lavin , Bozeman, Montana, USA |
| タグ | |
| 撮影地 | Idaho, United States 地図 |
| カメラ | COOLPIX S8000 , NIKON |
| 露出 | 0.002 sec (1/500) |
| 開放F値 | f/3.9 |
| 焦点距離 | introduced perennial bunchgrass Poaceae "Agropyron cristatum" "crested wheatgrass" "green stripe" "green striping" |