american chestnut growth and survival five years after planting in two silvicultural treatments in the southern appalachians, usa美洲栗生长和存活5年之后两营林种植治疗的阿巴拉契亚山脉南部,美国.pdfVIP

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american chestnut growth and survival five years after planting in two silvicultural treatments in the southern appalachians, usa美洲栗生长和存活5年之后两营林种植治疗的阿巴拉契亚山脉南部,美国.pdf

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american chestnut growth and survival five years after planting in two silvicultural treatments in the southern appalachians, usa美洲栗生长和存活5年之后两营林种植治疗的阿巴拉契亚山脉南部,美国

Forests 2012, 3, 1017-1033; doi:10.3390/f3041017 OPEN ACCESS forests ISSN 1999-4907 /journal/forests Article American Chestnut Growth and Survival Five Years after Planting in Two Silvicultural Treatments in the Southern Appalachians, USA Stacy Clark 1,*, Henry McNab 2, David Loftis 2 and Stanley Zarnoch 3 1 Southern Research Station, United States Department of Agriculture Forest Service, 2431 Joe Johnson Drive, Room 274, Knoxville, TN 37996, USA 2 Southern Research Station, United States Department of Agriculture Forest Service, 1577 Brevard Rd., Asheville, NC 28806, USA; E-Mails: hmcnab@fs.fed.us (H.M.); davidloftis@ (D.L.) 3 Southern Research Station, United States Department of Agriculture Forest Service, 200 W.T. Weaver Blvd., Asheville, NC 28804, USA; E-Mail: szarnoch@fs.fed.us * Author to whom correspondence should be addressed; E-Mail: stacyclark@fs.fed.us; Tel.: +1-865-974-0932; Fax: +1-865-974-4714. Received: 20 August 2012; in revised form: 26 October 2012 / Accepted: 31 October 2012 / Published: 9 November 2012 Abstract: The ability to restore American chestnut (Castanea dentata) through the planting of blight-resistant (Cryphonectria parasitica) trees is currently being tested. Forest-based research on the species’ silvicultural requirements and chestnut blight development are lacking. Pure American chestnut seedlings were planted in a two-age shelterwood forest with low residual basal area and in a midstory-removal treatment