| 翻訳と辞書 |
Wapato Lake
Wapato Lake was a historic lake located in what became parts of Washington County and Yamhill County in the U.S. state of Oregon. The area is sometimes known as Wapato Lake Bed and Wapato Flat. The lake bed is located about a half mile east of Gaston at elevation.〔 The lake bed soils contain a layer of organic peat that once supported a wetland community dominated by the wapato plant, ''Sagittaria latifolia'', particularly in the upper marsh areas.〔
==History==
Prior to the arrival of settlers, the Tualatin Indians had used the lake for a winter settlement.〔Buan, Carolyn M. (1999). ''This Far-Off Sunset Land: A Pictorial History of Washington County, Oregon''. Donning Company Publishers, pp. 19-23.〕 They had 23 permanent villages centered on the lake.〔 This band of Native Americans negotiated with the government to retain a small reservation at the lake in 1851, but the treaty was never approved by Congress with the band relegated to the Grand Ronde reservation by an 1855 treaty.〔 The lake area was before it was drained in the mid-1930s by the Wapato Improvement District—created by local landowners—which installed ditches, dikes, and drainage tiles to increase available farmland,
primarily for cultivation of onions. The main irrigation ditch was named the Gaston Ditch.〔 In 2002, the United States Fish and Wildlife Service began studying the area for an expansion to the Tualatin River National Wildlife Refuge located about to the east.〔Stern, Henry. “Study to create refuge at Gaston runs into delays”, ''The Oregonian'', August 8, 2002, West Zoner, p. 12.〕 The service created the Wapato Lake Unit in 2007,〔Mortenson, Eric. “Wapato Lake gets OK for refuge add-on”, ''The Oregonian'', March 19, 2007, p. B2.〕 and plan to add up to to the refuge around Wapato Lake as well as eventually restore the lake.〔 As of September, 2009, the U.S. Fish and Wildlife Service had purchased to add to an initial the government owned prior to the establishment of the Wapato Lake Unit. In December 2013, the Wapato Lake National Wildlife Refuge was carved out of the Tualatin River National Wildlife Refuge with an initial boundary of .
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Wapato Lake」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|