?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Foar.icrisat.org%2F3766%2F&rft.title=Gully+control+in+SAT+watersheds.+Global+Theme+on+Agroecosystems+Report++no.+15&rft.creator=Pathak%2C+P&rft.creator=Wani%2C+S+P&rft.creator=Sudi%2C+R&rft.subject=Watershed+Management&rft.description=Gully+erosion+is+geographically+a+widespread+problem.+It+is+common+in+the+semi-arid+region%2C+characterized+by+denuded+landscape+and+flash+floods.+An+estimated+4+million+ha+land+in+India+and+29+million+ha+of+land+in+Africa+are+affected+by+severe+gully+erosion.+Gully+erosion+is+more+difficult+and+expensive+to+control+than+other+types+of+soil+erosion.+A+full+understanding+of+erosion+processes+at+various+stages+of+gully+development+is+essential+to+achieve+gully+stabilization.+Without+proper+understanding+often+the+measures+taken+for+controlling+gully+were+found+unnecessary+or+ineffective.+This+report+provides+the+basic+knowledge+of+gully+formation+and+its+causes.+The+classification+of+gullies+and+the+basic+principles+of+its+control+are+explained.+Drawing+primarily+the+experiences+from+the+several+on-farm+watershed+projects+implemented+by+ICRISAT%2C+the+report+provides+the+practical+approach+for+gully+control+in+the+context+of+overall+watershed+development+and+management.+The+basic+considerations+and+the+design+details+of+various+gully+control+structures%2C+viz%2C+loose+rock+dam%2C+double-row+post-brush+dam%2C+double-row+post-stone+dam%2C+single-row+post-stone+dam%2C+stone+wall+dam%2C+masonry+check-dam%2C+earthen+check-dam+and+gabion+structures+are+covered+in+detail.+The+key+hydrological+data%2C+ie%2C+runoff+volume+and+peak+runoffrate+measured+at+the+watershed+scale+along+with+design+peak+runoff+rate+for+the+various+locations+in+India+are+given.+These+data+will+greatly+assist+the+watershed+implementing+agencies+in+the+selection%2C+design%2C+construction+and+maintenance+of+gully+control+structures.&rft.publisher=International+Crops+Research+Institute+for+the+Semi-Arid+Tropics&rft.date=2005&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Foar.icrisat.org%2F3766%2F1%2FGullyCcontrolInSATWatersheds_2005.pdf&rft.identifier=++Pathak%2C+P+and+Wani%2C+S+P+and+Sudi%2C+R++(2005)+Gully+control+in+SAT+watersheds.+Global+Theme+on+Agroecosystems+Report+no.+15.++Monograph.+International+Crops+Research+Institute+for+the+Semi-Arid+Tropics%2C+Patancheru%2C+Andhra+Pradesh%2C+India.+++++