Day 280 of 366 : 無料・フリー素材/写真
Day 280 of 366 / JamesInOregon
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Paper birch off of Highway 2 near Leavenworth, Washington.Paper birch, is a short lived species of birch native to northern North America. Paper birch is named due to the thin white bark which often peels in paper like layers from the trunk. Paper birch is often one of the first species to colonize a burned area within the norther latitudes and an important species for moose browse. The wood is often used for pulpwood and firewood.It is a medium-sized deciduous tree typically reaching 66 ft tall and exceptionally to 130 feet with a trunk up to 30 inches. Within forests it often grows with a single trunk but when grown as a landscape tree it may develop multiple trunks or branch close to the ground.Paper birch is a typically short lived species. It handles heat and humidity poorly and may only live 30 years in zones six and up, while trees in colder-climate regions can grow over 100 years. Paper birch will grow on many soil types, from steep rocky outcrops to flat muskegs of the boreal forest. Best growth occurs on deeper, well drained to dry soils depending on the location. |
| 撮影日 | 2016-11-08 10:48:58 |
| 撮影者 | JamesInOregon |
| タグ | |
| 撮影地 | Washington, United States 地図 |
| カメラ | NIKON D7200 , NIKON CORPORATION |
| 露出 | 0.005 sec (1/200) |
| 開放F値 | f/5.6 |
| 焦点距離 | 200 mm |