LEADER 04219nam 2200409 450 001 9910720568403321 005 20230704071200.0 035 $a(CKB)5710000000124138 035 $a(NjHacI)995710000000124138 035 $a(EXLCZ)995710000000124138 100 $a20230704d2013 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aHistorical agriculture and soil erosion in the upper Mississippi Valley hill country /$fStanley W. Trimble 210 1$aBoca Raton :$cCRC Press, Taylor and Francis Group,$d[2013] 210 4$dİ2013 215 $a1 online resource (xlviii, 242 pages) 320 $aIncludes bibliographical references (pages 211-220) and index. 327 $aThe Physical Region and Primeval Landscape. -- European Settlement and Changes of Land -- Use. The Systematic Effects of Historical -- Agriculture on the Physical Landscape. -- Upland Gully Erosion and its Effects. The -- Tributaries: Zone of Early, Complex Changes -- of Process and Form. The Upper Main Valleys: -- Zone of Later Complex Changes of Process -- and Form. The Lower Main Valleys: Zone of -- Perennial Sedimentation. The Great Flood -- of August 2007 and its Implications. -- Conclusions. Index. 330 $a"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. 606 $aAgriculture$xEnvironmental aspects$zDriftless Area$xHistory$y19th century 606 $aAgriculture$xEnvironmental aspects$zDriftless Area$xHistory$y20th century 606 $aSoil erosion$zDriftless Area$xHistory$y19th century 615 0$aAgriculture$xEnvironmental aspects$xHistory 615 0$aAgriculture$xEnvironmental aspects$xHistory 615 0$aSoil erosion$xHistory 676 $a631.45 700 $aTrimble$b Stanley Wayne$0854610 801 0$bNjHacI 801 1$bNjHacl 906 $aBOOK 912 $a9910720568403321 996 $aHistorical agriculture and soil erosion in the upper Mississippi Valley hill country$91908391 997 $aUNINA