1 / 23

RÜZGAR EROZYONU ÖNLEME ÇALIŞMALARI

Doç.Dr Mustafa Başaran, Yard. Doç.Dr. A.Uğur Özcan, Araş.Gör. Oğuzhan Uzun, Prof.Dr. Günay Erpul. METEOROLOJİ, TOZ TAŞINIMI , ÇÖLLEŞME VE EROZYONLA MÜCADELE ÇALIŞTAYI. Erciyes Üniversitesi Seyrani Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü, Kayseri

rusk
Download Presentation

RÜZGAR EROZYONU ÖNLEME ÇALIŞMALARI

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Doç.Dr Mustafa Başaran, Yard. Doç.Dr. A.Uğur Özcan, Araş.Gör. Oğuzhan Uzun, Prof.Dr. Günay Erpul METEOROLOJİ, TOZTAŞINIMI, ÇÖLLEŞME VE EROZYONLA MÜCADELE ÇALIŞTAYI Erciyes Üniversitesi Seyrani Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü, Kayseri Karatekin Üniversitesi, Orman Fakültesi, Peyzaj Mimarlığı Bölümü, Çankırı Ankara Üniversitesi Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü, Dışkapı, Ankara RÜZGAR EROZYONU ÖNLEME ÇALIŞMALARI

  2. A proces of detechment, transport anddeposiation of soilparticles. Transport of uppersoilandnutrients Loss of yieldpotential Internalandexternalhazards WINDEROSION?

  3. Soillosseswithinwinderosionside • Organicmatterandnutrientslosses • Degradation of soilphysicalproperties • Yieldlosses InternalHAZARDS http://www.eoearth.org/article/Geoindicators

  4. Airqualitydeterioration • Roadcloseup • İrrigationchannelpluging • Accidents • Hazards on electronicdevices • Fatalhealthhazards (Lungand skin cancer, asthma, infectiousdesiases) EXTERNALHAZARDS http://adlib.everysite.co.uk/adlib/defra/content.aspx?doc=110535&id=110536

  5. Tresholdvelocity; Initiatessoil transport Transport throughcreep, splashandsuspention Deposition THEPROCESS http://milford.nserl.purdue.edu/weppdocs/overview/wndersn.html

  6. Vegetationcover • Depth of loosesoilmaterial • Soilmoisturecontent • Microtopography • Size of wind-exposured site • Soilproperties (Aggregategrain size distribution, soiltexturalchracteristics, organicmattercontent) CONTROLLINGFACTORS

  7. Createsoilroughness • Createclodysoilsurface • Decreasewind-exposeurethroughwind-breaks • Provideandmaintainsufficientplantcover PREVENTIONandCONTROL

  8. Emergencyplow: Plowingperpendiculartopromininentwinddirectiontocreateclodsandridgestoprovidesurfaceroughnessandchangewind profile. PREVENTIONandCONTROL

  9. Ridgecultivation: Bestefficiency at 1:4 ridgeheight:ridgespacingratio (WoodruffandSiddoway, 1965). A 50% reduction in winderosion at ridgeheight of 6 cm. PREVENTIONandCONTROL

  10. Stubblesorplantresidues: 500- 700 kg da-1stubbleor hay covermayprovidesoilmoisturepreservationandwinddeflectionoversoilsurface. PREVENTIONandCONTROL http://www.ahi-ka.org.tr/index.php?page=haber&id=428

  11. Manureapplicationoversoilsurface:Anotherefficientwaytopreservessoilmoistureandwinddeflectionoverthesoilsurface. Maximumbenefit at 2.5-3 ton da-1implementation. PREVENTIONandCONTROL http://www.amasyadsyb.org/

  12. Emergencyirrigation:Highirrigationratesmay be beneficialwhenthewinderosionthreathensthenewlyemergingplants. A specialattentionmust be paid in implementation since irrigationdroplets can break uptheagregates. PREVENTIONandCONTROL http://aydin.ormansu.gov.tr/Aydin/AnaSayfa/AgmOrkoySubesi/agmAydinFidanlik.aspx?sflang=tr

  13. Soilsurfacestabilizers: Implementation of bitimuniousandmeloseslikeorganicmaterialstoimproveadhesionamongsoilparticulesmaypreventsoilerosion. It is a high-costimplementation. Therefore, recommendedforhigh-incomecropsandplants. PREVENTIONandCONTROL

  14. A soilstabilazormust: • Provide a 100% cover • Not havenegativeimpacts of plantgrowthandyield. • Ableeitherpreventerosionorredeucetheimpatcs of erosion • Be easy-to-applyandlow-cost (Armbrust and Lyles, 1975) PREVENTIONandCONTROL

  15. Windbreaks: One of themostefficientmeans of erosionprevention. Chepil (1957) reportedincreasingsedimentflow rate withthelenthg of wind-exposureandreachesto a maximumvalue at a certainwindvelocity. PREVENTIONandCONTROL

  16. Assuming a constantwinddirection, a properwind break maydecreasewinderoionby 50%. Such a break mayalsoprovide a 50% erosionpreventionover20h size landarea (h is thehegith of break). PREVENTIONandCONTROL

  17. Bandseeding, plow paralel tocounters, plantrotationarealsothecommonmethodforerosionprevention. Plantstripsmaypreservesoilsurface. PREVENTIONandCONTROL

  18. Thecommonphylosopyh of “sperateandmanage” may be efficientoverbaresites. Breaksareusedtoseperate a largefieldintosmallplotsanddecreasethe risk of erosion. PREVENTIONandCONTROL

  19. Determinethetolarablesoillossesfortherelavent site (ton/ha/year) Calculatepotentailsoillosses (ton/ha / year) Selectthemethodabletoprovidetolerablesoillosses WHICHMETHODSHOULD BE SELECTED?

  20. WEQ • RWEQ • WEPS • In-situmeasurements PotatIALSOILLOSSES

  21. Winderosionequationsummariestheprinciplesforerosioncontrolandprevention (Woodruff and Siddoway (1965); PotatIALSOILLOSSES Where; E; soillosses (ton ha-1 yıl-1), I ; erosionsensitivityindex, K; surfaceroughness, C; climatefactor, L; lenthg of windexposure V; plantcoverfactor.

  22. Basinmangementstrategyforerosion-effectedsites • Land useplanning • Regionalproblemscreatingwinderosion (agriculture, grazing, soilproperties; organicmaterial, texture, exchangablesodiumpercentage) • Sociao-economicalreasonsandpossiblesolutions • Training of ruralpeople • Basin-scalewinderosionmonitoringandevaluationsystems • Calibrateinternallyprovenmodelsandequationsforrelaventbasin • Monitoringindicatorparameters Strategy

  23. Thanksforyoupatience

More Related