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Books > Earth & environment > Earth sciences > Geology & the lithosphere > Soil science, sedimentology
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Historical Agriculture and Soil Erosion in the Upper Mississippi Valley Hill Country (Hardcover)
Loot Price: R3,645
Discovery Miles 36 450
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Historical Agriculture and Soil Erosion in the Upper Mississippi Valley Hill Country (Hardcover)
Expected to ship within 12 - 17 working days
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"This thought-provoking book demonstrates how processes of
landscape transformation, usually illustrated only in simplified or
idealized form, play out over time in real, complex landscapes.
Trimble illustrates how a simple landscape disturbance, generated
in this case by agriculture, can spread an astonishing variety of
altered hydrologic and sedimentation processes throughout a
drainage basin. The changes have spatial and temporal patterns
forced on them by the distinctive topographic structure of drainage
basins. "Through painstaking field surveys, comparative
photographic records, careful dating, a skillful eye for subtle
landscape features, and a geographer's interdisciplinary
understanding of landscape processes, the author leads the reader
through the arc of an instructive and encouraging story.
Farmers-whose unfamiliarity with new environmental conditions led
initially to landscape destruction, impoverishment, and
instability-eventually adapted their land use and settlement
practices and, supported by government institutions, recovered and
enriched the same working landscape. "For the natural scientist,
Historical Agriculture and Soil Erosion in the Upper Mississippi
Valley Hill Country illustrates how an initially simple alteration
of land cover can set off a train of unanticipated changes to
runoff, erosion, and sedimentation processes that spread through a
landscape over decades-impoverishing downstream landscapes and
communities. Distinct zones of the landscape respond differently
and in sequence. The effects take a surprisingly long time to
spread through a landscape because sediment moves short distances
during storms and can persist for decades or centuries in
relatively stable forms where it resists further movement because
of consolidation, plant reinforcement, and low gradients. "For the
social scientist, the book raises questions of whether and how
people can be alerted early to their potential for environmental
disturbance, but also for learning and adopting restorative
practices. Trimble's commitment to all aspects of this problem
should energize both groups." -Professor Thomas Dunne, Bren School
of Environmental Science and Management, UC Santa Barbara
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