Hodnocení vzorkovacích a interpolačních metod použitých pro mapování plevelů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A17460" target="_blank" >RIV/60460709:41210/06:17460 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of sampling and interpolation methods used for weed mapping

Popis výsledku v původním jazyce

Weed mapping was carried out on 3 fields in central Bohemia in order to characterize the spatial structure and temporal stability of weed populations over six years (1999-2004). A rectangular grid 40 x 40 m or 20 x 40 m respectively was established applying GPS (Global Positioning System) along the wheel tracks on trial fields. The number of plants for each species and the total weed coverage has been recorded at the grid points. The resulting weed map is strongly affected by the sampling intensity andby the interpolation method used. This paper evaluates the quality of weed maps created using different sampling grids and sample sizes and compares recently used interpolation methods (Ordinary Point Kriging and Inverse Distance Weighting (IDW)). Samplesize was found to be critical, particularly for weed species having low economic thresholds such as Galium aparine L. Kriging produced smoothed maps, when a spherical variogram model was used, IDW resulted in artificial contours with spo

Název v anglickém jazyce

Evaluation of sampling and interpolation methods used for weed mapping

Popis výsledku anglicky

Weed mapping was carried out on 3 fields in central Bohemia in order to characterize the spatial structure and temporal stability of weed populations over six years (1999-2004). A rectangular grid 40 x 40 m or 20 x 40 m respectively was established applying GPS (Global Positioning System) along the wheel tracks on trial fields. The number of plants for each species and the total weed coverage has been recorded at the grid points. The resulting weed map is strongly affected by the sampling intensity andby the interpolation method used. This paper evaluates the quality of weed maps created using different sampling grids and sample sizes and compares recently used interpolation methods (Ordinary Point Kriging and Inverse Distance Weighting (IDW)). Samplesize was found to be critical, particularly for weed species having low economic thresholds such as Galium aparine L. Kriging produced smoothed maps, when a spherical variogram model was used, IDW resulted in artificial contours with spo

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GF - Choroby, škůdci, plevely a ochrana rostlin

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Zeitschrift für Pflanzenkrank.und Pflanzenschutz

ISSN

0340-8159

e-ISSN

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Svazek periodika

1

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

205-215

Kód UT WoS článku

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EID výsledku v databázi Scopus

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