"Ostrava" . "Ostrava" . "Symposium GIS Ostrava 2011" . "43210" . . . . "978-80-248-2366-9" . . . . "One of the possibilities offered to us by the remote sensing, is to monitor all the vegetation. Therefore agricultural plants can be monitor as well. From the spectral point of view, the presence of vegetation induces a significant increase of reflectance in IR part of the spectra. The main topic of this research project was to evaluate the changes in reflectance in chosen agriculturally used land in time and evaluate the correlation with yield maps. A field (61 ha) which belongs to University agriculture enterprise in \u017Dab\u010Dice (Czech Republic, 48 59'11 N 16 37'40 E, 175 m above sea-level) was chosen as an experimental area for our project. Yield maps were obtained at harvest machine-Class, which is equipped to measure the yield, grain moisture content and GPS. Aerial photography was done by mid-format camera Hasselbland H1 in two spectral bands (RED, 630-690 nm a NIR, 750-900 nm) and in the following time periods: June 2004 (twice), July 2005 and May 2006. Based on these data, we were able to create an orthophotomap (pixel size = 10 x 10 m), determine NDVI and calculate a correlation between the reflectance of both spectral bands within the period of monitoring. In the case of winter wheat, a high dependence (correlation factor = 0.70) between RED and NIR bands was observed in June 2004 and May 2006. Interestingly, within the same period of monitoring, the similar correlation was observed also in the case of NDVI and yield maps. Based on these results, one might expect that if the same crop-plant, land management and growth period would be used, the values of RED, NIR, NDVI and yield maps of agricultural crop-plants on this particular field might be estimated."@en . . . "DPZ A V\u00DDNOSOV\u00C9 MAPY" . . . . "RIV/62156489:43210/11:00168427" . "Agriculture; yield maping; History; Land Use; Remote Sensing"@en . "REMOTE SENSING AND YIELD MAPS"@en . "2011-01-24+01:00"^^ . "Vysok\u00E1 \u0161kola b\u00E1\u0148sk\u00E1 - Technick\u00E1 univerzita Ostrava" . "DPZ A V\u00DDNOSOV\u00C9 MAPY"@cs . . . "DPZ A V\u00DDNOSOV\u00C9 MAPY" . "5"^^ . . . "Jednou z mo\u017Enost\u00ED, kter\u00E9 poskytuje d\u00E1lkov\u00FD pr\u016Fzkum Zem\u011B (DPZ), je sledov\u00E1n\u00ED vegetace, do kter\u00E9 pat\u0159\u00ED i zem\u011Bd\u011Blsk\u00E9 rostliny. Spektr\u00E1ln\u00ED chov\u00E1n\u00ED vegetace se vyzna\u010Duje p\u0159edev\u0161\u00EDm v\u00FDznamn\u00FDm n\u00E1r\u016Fstem odrazivosti v bl\u00EDzk\u00E9 infra\u010Derven\u00E9 \u010D\u00E1sti spektra. Podstatou \u0159e\u0161en\u00E9ho v\u00FDzkumu bylo zjistit, nakolik se m\u011Bn\u00ED reflektance vybran\u00E9ho zem\u011Bd\u011Blsky vyu\u017E\u00EDvan\u00E9ho pozemku a nakolik tyto zm\u011Bny koreluj\u00ED s v\u00FDnosov\u00FDmi mapami. Pro \u0159e\u0161en\u00ED projektu byl zvolen pozemek \u0160ZP \u017Dab\u010Dice (Czech Republic, 48 59'11 N 16 37'40 E, 175 m n.m., 61 ha). V\u00FDnosov\u00E9 mapy byly z\u00EDsk\u00E1ny p\u0159i sklizni skl\u00EDzec\u00ED ml\u00E1ti\u010Dkou Claas, kter\u00E1 je vybavena za\u0159\u00EDzen\u00EDmi pro m\u011B\u0159en\u00ED v\u00FDnosu, vlhkosti zrna a stanoven\u00ED pozice. Leteck\u00E9 sn\u00EDmkov\u00E1n\u00ED bylo provedeno firmou GEODIS BRNO spol. s r.o. ve dvou spektr\u00E1ln\u00EDch p\u00E1smech (RED, 630-690 nm a NIR, 750-900 nm) a ve t\u0159ech obdob\u00EDch: \u010Derven 2004 (dvakr\u00E1t), \u010Dervenec 2005 a kv\u011Bten 2006. Z nasn\u00EDman\u00FDch dat byla vytvo\u0159ena ortofotomapa (velikost pixelu 10 x 10m), stanoven NDVI a spo\u010D\u00EDt\u00E1na korelace mezi kan\u00E1ly v jednotliv\u00FDch term\u00EDnech sn\u00EDmkov\u00E1n\u00ED a mezi dostupn\u00FDmi v\u00FDnosov\u00FDmi mapami. U ozim\u00E9 p\u0161enice byla zji\u0161t\u011Bna siln\u00E1 z\u00E1vislost mezi kan\u00E1ly RED a NIR v obdob\u00EDch \u010Derven 2004 a kv\u011Bten 2006. Stejn\u00E1 z\u00E1vislost byla pozorov\u00E1na u NDVI a mezi reflektanc\u00ED a v\u00FDnosov\u00FDmi mapami. Tyto v\u00FDsledky uk\u00E1zaly, \u017Ee existuje z\u00E1vislost mezi reflektanc\u00ED zem\u011Bd\u011Blsky vyu\u017E\u00EDvan\u00E9ho pozemku v konkr\u00E9tn\u00EDm um\u00EDst\u011Bn\u00ED v jednotliv\u00FDch letech a mezi v\u00FDnosov\u00FDmi mapami." . . "195418" . . "3"^^ . . "DPZ A V\u00DDNOSOV\u00C9 MAPY"@cs . "Posp\u00ED\u0161il, Ji\u0159\u00ED" . "Jednou z mo\u017Enost\u00ED, kter\u00E9 poskytuje d\u00E1lkov\u00FD pr\u016Fzkum Zem\u011B (DPZ), je sledov\u00E1n\u00ED vegetace, do kter\u00E9 pat\u0159\u00ED i zem\u011Bd\u011Blsk\u00E9 rostliny. Spektr\u00E1ln\u00ED chov\u00E1n\u00ED vegetace se vyzna\u010Duje p\u0159edev\u0161\u00EDm v\u00FDznamn\u00FDm n\u00E1r\u016Fstem odrazivosti v bl\u00EDzk\u00E9 infra\u010Derven\u00E9 \u010D\u00E1sti spektra. Podstatou \u0159e\u0161en\u00E9ho v\u00FDzkumu bylo zjistit, nakolik se m\u011Bn\u00ED reflektance vybran\u00E9ho zem\u011Bd\u011Blsky vyu\u017E\u00EDvan\u00E9ho pozemku a nakolik tyto zm\u011Bny koreluj\u00ED s v\u00FDnosov\u00FDmi mapami. Pro \u0159e\u0161en\u00ED projektu byl zvolen pozemek \u0160ZP \u017Dab\u010Dice (Czech Republic, 48 59'11 N 16 37'40 E, 175 m n.m., 61 ha). V\u00FDnosov\u00E9 mapy byly z\u00EDsk\u00E1ny p\u0159i sklizni skl\u00EDzec\u00ED ml\u00E1ti\u010Dkou Claas, kter\u00E1 je vybavena za\u0159\u00EDzen\u00EDmi pro m\u011B\u0159en\u00ED v\u00FDnosu, vlhkosti zrna a stanoven\u00ED pozice. Leteck\u00E9 sn\u00EDmkov\u00E1n\u00ED bylo provedeno firmou GEODIS BRNO spol. s r.o. ve dvou spektr\u00E1ln\u00EDch p\u00E1smech (RED, 630-690 nm a NIR, 750-900 nm) a ve t\u0159ech obdob\u00EDch: \u010Derven 2004 (dvakr\u00E1t), \u010Dervenec 2005 a kv\u011Bten 2006. Z nasn\u00EDman\u00FDch dat byla vytvo\u0159ena ortofotomapa (velikost pixelu 10 x 10m), stanoven NDVI a spo\u010D\u00EDt\u00E1na korelace mezi kan\u00E1ly v jednotliv\u00FDch term\u00EDnech sn\u00EDmkov\u00E1n\u00ED a mezi dostupn\u00FDmi v\u00FDnosov\u00FDmi mapami. U ozim\u00E9 p\u0161enice byla zji\u0161t\u011Bna siln\u00E1 z\u00E1vislost mezi kan\u00E1ly RED a NIR v obdob\u00EDch \u010Derven 2004 a kv\u011Bten 2006. Stejn\u00E1 z\u00E1vislost byla pozorov\u00E1na u NDVI a mezi reflektanc\u00ED a v\u00FDnosov\u00FDmi mapami. Tyto v\u00FDsledky uk\u00E1zaly, \u017Ee existuje z\u00E1vislost mezi reflektanc\u00ED zem\u011Bd\u011Blsky vyu\u017E\u00EDvan\u00E9ho pozemku v konkr\u00E9tn\u00EDm um\u00EDst\u011Bn\u00ED v jednotliv\u00FDch letech a mezi v\u00FDnosov\u00FDmi mapami."@cs . "RIV/62156489:43210/11:00168427!RIV12-MSM-43210___" . "[14543384D49C]" . "2"^^ . "REMOTE SENSING AND YIELD MAPS"@en . . "\u0160af\u00E1\u0159, V\u00E1clav" . "\u017Dd\u00EDmal, V\u00E1clav" . "S" .