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| Appalachian Essays from North Central Pennsylvania: A Forest History and Natural History of the Lost Run Watershed, with a Buddhist Emphasis | ||
| 作者 | Dunmore, Ralph E. (著) |
|---|---|
| 出處題名 | Dissertation Abstracts International |
| 卷期 | v.62 n.1 Section B |
| 出版日期 | 2001 |
| 出版者 | ProQuest LLC |
| 出版者網址 | https://www.proquest.com/ |
| 出版地 | Ann Arbor, MI, US [安娜堡, 密西根州, 美國] |
| 資料類型 | 期刊論文=Journal Article |
| 使用語言 | 英文=English |
| 學位類別 | 博士 |
| 校院名稱 | Union Institute |
| 指導教授 | Hagens, Bethe |
| 畢業年度 | 2001 |
| 附註項 | 326p |
| 關鍵詞 | Appalachian; Pennsylvania; Forest history; Natural history; Buddhist |
| 摘要 | Centered on a three-year field study of plant communities in northcentral Pennsylvania, these essays articulate a science-based natural and forest history of a small watershed in the Allegheny Mountains, and interpret it from the Buddhist perspective of Master Dogen, the 13th-century Zen teacher. Traditional Buddhism and contemporary ecology share the idea of flux as a basis for reality, ecology through its nonlinear paradigm, and Buddhism with its notion of the interdependence of phenomena and beings. Both outlooks view nature as comprised of causes and effects, with Buddhism emphasizing the mutually-conditioning aspect of reality. Prior to 18th-century settlement, the Lost Run watershed lay within the hemlock-white pine-mixed hardwoods belt of northern/central Pennsylvania. “High-grading” logging of old growth white pine in the mid-19th century, followed by clear cutting of hemlock in surrounding areas, facilitated severe slash fires and then intermittent forest fires, lasting until about 1930. By the early 1940s, a young forest of hardwood species and pitch pine had emerged. Today's community types at Lost Run are dominated by pitch pine, several oak species and red maple, and have replaced the hemlock-white pine-mixed hardwoods type. The very patchy landscape reflects interactions of fire, recurrent insect infestations and windthrows. At down-stream sites, large numbers of suppressed seedlings reveal the dramatic impacts of dense ground cover and white-tailed deer herbivory upon succession. In the upper watershed, black cherry and red maple seedlings have grown above the dense ground cover, and moderate, high-canopy tree shade, but not those of oaks, whose regeneration is light sensitive. The next forest in the upper watershed may be a black cherry-red maple type. In the lower watershed, red maple co-dominates with sweet birch along the stream; and with pitch pine and oaks at higher elevations. At scattered sites white pine is regenerating as saplings and young trees. However, the combined effects of climate warming, acid rain and site variables preclude any firm predictions about the future of this forest, beyond the Buddhist belief in change. |
| ISBN | 9780493101828 |
| 點閱次數 | 881 |
| 建檔日期 | 2005.09.23 |
| 更新日期 | 2022.03.24 |
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