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Howland Forest : ウィキペディア英語版 | Howland Forest
The Howland Research Forest is a tract of mature evergreen forest in central Maine, USA, west of the town of Howland. The Howland study site is located in a boreal transitional forest. The forest is dominated by mixed spruce, hemlock, aspen and birch stands ranging in age from 45 to 130 years. The soils are formed on coarse-loamy granitic basal till.〔Woods Hole Research Center: http://www.whrc.org/new_england/Howland_Forest/index.htm〕 The tract is part of the 1.1 million acres (4,500 km²) of Maine forest sold in 2005 by International Paper (IP) to a private forest investment management company. In 2007, the research forest was purchased by Northeast Wilderness Trust ensuring its wild and natural state into the future.〔Howland Forest website: http://www.howlandforest.org/〕 The tract had previously been designated as a research forest under IP's ownership, attracting researchers from the US Forest Service, the University of Maine, NASA, NOAA, and the Woods Hole Research Center. Areas of study included acid rain, nutrient cycling, soil ecology, and more recently, forest carbon uptake and loss. The forest has one of the longest records of carbon flux measurement in the world, dating to 1996, providing important information about carbon sequestration in mature forests. The Howland Forest is a founding member of the AmeriFlux and FLUXNET research networks.〔 == Notes ==
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「Howland Forest」の詳細全文を読む
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