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| Description
| - Effects of drought stress, stress by increased nitrogen depositions and combined effect of the two stress factors on the growth of Norway spruce (Picea abies /L./ Karst.) were studied in two stands. The drought stress was induced by reduction of atmospheric precipitations by 60%, the increased nitrogen depositions were simulated by repeated applications of ammonium sulphate at a dose corresponding to 100 kg N.ha-1.year-1. All stress factors under study impacted the height increment of above-ground part, length and colour of needles and the biomass, vertical distribution, functionality and mycorrhizal infection of fine roots. Root system responded to the simulated stresses as early as from the very first year of their effect exhibiting a greater damage than the above-ground part of the plant. Drought acted as a stress factor stronger than the nitrogen depositions themselves. The strongest impact was recorded in the simultaneous influence of the stress factors.
- Effects of drought stress, stress by increased nitrogen depositions and combined effect of the two stress factors on the growth of Norway spruce (Picea abies /L./ Karst.) were studied in two stands. The drought stress was induced by reduction of atmospheric precipitations by 60%, the increased nitrogen depositions were simulated by repeated applications of ammonium sulphate at a dose corresponding to 100 kg N.ha-1.year-1. All stress factors under study impacted the height increment of above-ground part, length and colour of needles and the biomass, vertical distribution, functionality and mycorrhizal infection of fine roots. Root system responded to the simulated stresses as early as from the very first year of their effect exhibiting a greater damage than the above-ground part of the plant. Drought acted as a stress factor stronger than the nitrogen depositions themselves. The strongest impact was recorded in the simultaneous influence of the stress factors. (en)
- Ve dvou dvanáctiletých porostech byla sledována reakce smrku ztepilého na simulovaný stres suchem, zvýšené depozice dusíku a souběžné působení obou faktorů. Stres suchem byl vyvolán redukcí přirozeného množství atmosférických srážek o 60 %. Zvýšené depozice dusíku byly simulovány opakovaným dodáváním síranu amonného v dávce odpovídající 100 kg N . ha-1.rok-1. Simulované stresové faktory rozdílně ovlivnily výškový přírůst, tloušťku kmene, délku jehlic, a zejména negativně ovlivnily rozvoj kořenového systému (snížení biomasy, funkčnosti a životnosti jemných kořenů) a vyvolaly změnu distribuce jemných kořenů posunem kořenového systému do hlubších vrstev.V průběhu sledování byl negativní vliv sucha ve většině případů silnější než negativní vliv dusíku. (cs)
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| Title
| - Vliv zvýšených depozic dusíku a stresu suchem na vývin mladších porostů smrku (cs)
- Effect of increased nitrogen depositions and drought stress on the development of young Norway spruce Picea abies (L.) Karst. stands
- Effect of increased nitrogen depositions and drought stress on the development of young Norway spruce Picea abies (L.) Karst. stands (en)
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| skos:prefLabel
| - Vliv zvýšených depozic dusíku a stresu suchem na vývin mladších porostů smrku (cs)
- Effect of increased nitrogen depositions and drought stress on the development of young Norway spruce Picea abies (L.) Karst. stands
- Effect of increased nitrogen depositions and drought stress on the development of young Norway spruce Picea abies (L.) Karst. stands (en)
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| skos:notation
| - RIV/62156489:43410/04:00001269!RIV/2005/MSM/434105/N
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/62156489:43410/04:00001269
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Norway spruce;biomass;drought;fine roots;functionality;height increment;mycorrhiza;nitrogen (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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