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}} The Redwood National and State Parks (RNSP) are old-growth temperate rainforests located in the United States, along the coast of northern California. Comprising Redwood National Park (established 1968) and California's Del Norte Coast, Jedediah Smith, and Prairie Creek Redwoods State Parks (dating from the 1920s), the combined RNSP contain . Located entirely within Del Norte and Humboldt Counties, the four parks, together, protect 45% of all remaining coast redwood (''Sequoia sempervirens'') old-growth forests, totaling at least . These trees are the tallest and one of the most massive tree species on Earth. In addition to the redwood forests, the parks preserve other indigenous flora, fauna, grassland prairie, cultural resources, portions of rivers and other streams, and of pristine coastline. In 1850, old-growth redwood forest covered more than of the California coast. The northern portion of that area, originally inhabited by Native Americans, attracted many lumbermen and others turned gold miners when a minor gold rush brought them to the region. Failing in efforts to strike it rich in gold, these men turned toward harvesting the giant trees for booming development in San Francisco and other places on the West Coast. After many decades of unrestricted clear-cut logging, serious efforts toward conservation began. By the 1920s the work of the Save-the-Redwoods League, founded in 1918 to preserve remaining old-growth redwoods, resulted in the establishment of Prairie Creek, Del Norte Coast, and Jedediah Smith Redwoods State Parks among others. Redwood National Park was created in 1968, by which time nearly 90% of the original redwood trees had been logged. The National Park Service (NPS) and the California Department of Parks and Recreation (CDPR) administratively combined Redwood National Park with the three abutting Redwood State Parks in 1994 for the purpose of cooperative forest management and stabilization of forests and watersheds as a single unit. The ecosystem of the RNSP preserves a number of threatened animal species such as the tidewater goby, Chinook salmon, northern spotted owl, and Steller's sea lion.〔(【引用サイトリンク】publisher=National Park Service )〕 In recognition of the rare ecosystem and cultural history found in the parks, the United Nations designated them a World Heritage Site on September 5, 1980 and an International Biosphere Reserve on June 30, 1983. ==History== Modern day Native groups such as the Yurok, Tolowa, Karok, Chilula, and Wiyot all have historical ties to the region, and some Native American groups still live in the park area today. Archaeological study shows they arrived in the area as far back as 3,000 years ago. An 1852 census determined that the Yurok were the most numerous, with 55 villages and an estimated population of 2,500. They used the abundant redwood, which with its linear grain was easily split into planks, as a building material for boats, houses, and small villages. For buildings, the planks would be erected side by side in a narrow trench, with the upper portions bound with leather strapping and held by notches cut into the supporting roof beams. Redwood boards were used to form a shallow sloping roof. Previous to Jedediah Smith in 1828, no other explorer of European descent is known to have thoroughly investigated the inland region away from the immediate coast. The discovery of gold along the Trinity River in 1850 led to a minor secondary rush in California. This brought miners into the area and many stayed on at the coast after failing to strike it rich. This quickly led to conflicts wherein native peoples were placed under great strain, if not forcibly removed or massacred. By 1895, only one third of the Yurok in one group of villages remained; by 1919, virtually all members of the Chilula tribe had either died or been assimilated into other tribes. The miners logged redwoods for building; when this minor gold rush ended, some of them turned again to logging, cutting down the giant redwood trees. Initially, over of the California and southwestern coast of Oregon were old-growth redwood forest, but by 1910, extensive logging led conservationists and concerned citizens to begin seeking ways to preserve the remaining trees, which they saw being logged at an alarming rate. In 1911, U.S. Representative John E. Raker, of California, became the first politician to introduce legislation for the creation of a redwood national park. However, no further action was taken by Congress at this time. Preservation of the redwood stands in California is considered one of the most substantial conservation contributions of the Boone and Crockett Club. The Save-the-Redwoods League was founded in 1918 by Boone and Crockett Club members Madison Grant, John C. Merriam, Henry Fairfield Osborn, and future member, Frederick Russell Burnham. The initial purchases of land were made by Club member Stephen Mather and Mr. William Kent. In 1921, Boone and Crockett Club member Dr. John C. Phillips donated $32,000 to purchase land and create the Raynal Bolling Memorial Grove in the Humboldt Redwoods State Park. This was timely as U.S. Route 101, which would soon provide nearly unfettered access to the trees, was under construction. Using matching funds provided initially by the County of Humboldt and later by the State of California, the Save-the-Redwoods League managed to protect areas of concentrated or multiple redwood groves and a few entire forests in the 1920s. As California created a state park system, beginning in 1927, three of the preserved redwood areas became Prairie Creek Redwoods, Del Norte Coast Redwoods, and Jedediah Smith Redwoods State Parks. A fourth became Humboldt Redwoods State Park, by far the largest of the individual Redwood State Parks, but not in the Redwood National and State Park system. Because of the high demand for lumber during World War II and the construction boom that followed in the 1950s, the creation of a national park was delayed. Efforts by the Save-the-Redwoods League, the Sierra Club, and the National Geographic Society to create a national park began in the early 1960s. After intense lobbying of Congress, the bill creating Redwood National Park was signed by President Lyndon Johnson on October 2, 1968. The Save-the-Redwoods League and other entities purchased over , which were added to existing state parks. In 1978, were added to Redwood National Park in a major expansion.〔 However, only a fifth of that land was old-growth forest, the rest having been logged. This expansion protected the watershed along Redwood Creek from being adversely affected by logging operations outside the park. The federal and state parks were administratively combined in 1994.〔(【引用サイトリンク】publisher=Save the Redwoods League )〕 The United Nations designated Redwood National and State Parks a World Heritage Site on September 5, 1980. The evaluation committee noted 50 prehistoric archaeological sites, spanning 4,500 years. It also cited ongoing research in the park by Humboldt State University researchers, among others. The park is part of a much larger region designated the ''California Coast Ranges'' International Biosphere Reserve on June 30, 1983. The California Coast Ranges biosphere is overseen by the University of California Natural Reserve System. 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「Redwood National and State Parks」の詳細全文を読む スポンサード リンク
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