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  • Groundwater pollution is a major national issue in many countries because of the common use of groundwater for drinking purposes; on that account leaching of five pesticides and one non-reactive tracer was investigated during the extensive field experiment at Kunia site. The principle objective of this contribution is the description of the fate of applied pesticides and their transport through the vadose zone. It was shown by previous studies that aggregate structure of Hawaiian Oxisols contributes to accelerated leaching of chemicals. To gain better understanding of all phenomena numerical modeling of the pesticide transport and other related processes is used. Two conceptually different models were chosen, one with dual-permeability based approach and the other is based on a kinematic wave equation for solving the water flow in the macropore domain. The results of simulated concentration profiles show in most cases quite good agreement with measured pesticide penetration.
  • Groundwater pollution is a major national issue in many countries because of the common use of groundwater for drinking purposes; on that account leaching of five pesticides and one non-reactive tracer was investigated during the extensive field experiment at Kunia site. The principle objective of this contribution is the description of the fate of applied pesticides and their transport through the vadose zone. It was shown by previous studies that aggregate structure of Hawaiian Oxisols contributes to accelerated leaching of chemicals. To gain better understanding of all phenomena numerical modeling of the pesticide transport and other related processes is used. Two conceptually different models were chosen, one with dual-permeability based approach and the other is based on a kinematic wave equation for solving the water flow in the macropore domain. The results of simulated concentration profiles show in most cases quite good agreement with measured pesticide penetration. (en)
  • Znečištění podzemních zdrojů pitné vody chemickými polutanty je jedním z hlávních problémů v mnoha zemích. Z toho důvodu je hlavním cílem tohoto příspěvku popsání pohybu pěti vybraných pesticidů v průběhu terénního experimentu. Predešlými studiemi na stejném experimentálním stanovišti bylo prokázáno preferenční chování půdy Oxisol. Z důvodu lepšího pochopení komplexního chování polutantů v půdě se přistoupilo k matematickému modelování pohybu pesticidů a ostatních chemicko-fyzikálních procesů. Dva konceptuálně rozdílné modely byly zvoleny pro účely numerického modelování. První je založen na přístupu duální permeability a druhý na řešení kinematické vlny v doméně makropórů. Výsledky simulovaných koncentračních profilů dávají v mnoho případech uspokojivou shodu s měřenými koncentracemi. (cs)
Title
  • Modeling Pesticide Leaching in Hawaii Oxisol
  • Modeling Pesticide Leaching in Hawaii Oxisol (en)
  • MODELOVÁNÍ POHYBU PESTICIDŮ V HAVAJSKÉ PŮDĚ OXISOL (cs)
skos:prefLabel
  • Modeling Pesticide Leaching in Hawaii Oxisol
  • Modeling Pesticide Leaching in Hawaii Oxisol (en)
  • MODELOVÁNÍ POHYBU PESTICIDŮ V HAVAJSKÉ PŮDĚ OXISOL (cs)
skos:notation
  • RIV/68407700:21110/04:01104801!RIV/2005/MSM/211105/N
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 211100002)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 573988
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21110/04:01104801
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • modeling; pesticides; soil (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...i/riv/kodPristupu
http://linked.open...ontrolniKodProRIV
  • [95DA6102FACD]
http://linked.open...i/riv/mistoVydani
  • Praha
http://linked.open...n/vavai/riv/nosic
  • neuvedeno
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Dušek, Jaromír
  • Vogel, Tomáš
http://linked.open...n/vavai/riv/zamer
https://schema.org/isbn
  • 80-01-02945-X
http://localhost/t...ganizacniJednotka
  • 21110
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