Fluvial response to land-use change in the Southern Appalachian region: A century of investigation

被引:6
|
作者
Harden, CP [1 ]
机构
[1] Univ Tennessee, Dept Geog, Knoxville, TN 37996 USA
关键词
Southern Appalachians; land-use change; river systems;
D O I
10.2747/0272-3646.25.5.398
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Land-use change in the Southern Appalachian region has followed broader social and economic trends over the past century, from unregulated resource exploitation to economic development and conservation. In the early 20th century, land degradation resulting from exploitative land uses in the Southern Appalachian region provoked "corrective" conservation measures and contributed to the emergence of national and regional institutions, including national forest lands in the eastern United States and the Tennessee Valley Authority (TVA). Systematic studies of fluvial system responses to forest clearing and mining in this region began in the 1930s at the U.S. Forest Service facilities in North Carolina. Mid-century research consisted of watershed monitoring, principally in projects by the U.S. Forest Service and TVA, to compare the effects of different silvicultural and agricultural practices, while more recent studies involve a range of agencies and institutions and reflect public policies to restore water quality. As research paradigms have changed, the landscape has also changed, thus creating new opportunities to study fluvial responses in landscapes with increased forest cover and/or increased urbanization and to document the persistence of those responses.
引用
收藏
页码:398 / 417
页数:20
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