Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean
ABSTRACT: Vegetation indices obtained by remote sensing products have various applications in agriculture. An important application of the Normalized Difference Vegetation Index (NDVI) is obtaining the crop coefficient (Kc). The aims of this study were to analyze NDVI temporal profiles and to obtain...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2016-09-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901683&lng=en&tlng=en |
| _version_ | 1819195174171967488 |
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| author | Thálita Carrijo de Oliveira Elizabeth Ferreira Antônio Augusto Aguilar Dantas |
| author_facet | Thálita Carrijo de Oliveira Elizabeth Ferreira Antônio Augusto Aguilar Dantas |
| author_sort | Thálita Carrijo de Oliveira |
| collection | DOAJ |
| description | ABSTRACT: Vegetation indices obtained by remote sensing products have various applications in agriculture. An important application of the Normalized Difference Vegetation Index (NDVI) is obtaining the crop coefficient (Kc). The aims of this study were to analyze NDVI temporal profiles and to obtain Kc from the NDVI vegetation index product MOD13Q1. The analysis is based on the phenological stages of irrigated soybean crops in the municipality of Planura/MG during the 2010/2011 growing season. Areas planted with irrigated soybean were identified through fieldwork. Temporal series of the MOD13Q1 products were used to analyze NDVI, allowing the extraction of NDVI values for all points in the period studied. The NDVI temporal profiles showed a similar pattern to each other and corresponded to the crop cycle. The KcNDVI values for the MOD13Q1 products were well correlated to the FAO Kc values (r2=0.72). Thus, NDVI can be used as an alternative for obtaining crop coefficient (Kc). |
| first_indexed | 2024-12-23T02:08:34Z |
| format | Article |
| id | doaj.art-2b14521eed014740917f4d089433fc7e |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-12-23T02:08:34Z |
| publishDate | 2016-09-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-2b14521eed014740917f4d089433fc7e2022-12-21T18:03:50ZengUniversidade Federal de Santa MariaCiência Rural1678-45962016-09-014691683168810.1590/0103-8478cr20150318S0103-84782016000901683Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybeanThálita Carrijo de OliveiraElizabeth FerreiraAntônio Augusto Aguilar DantasABSTRACT: Vegetation indices obtained by remote sensing products have various applications in agriculture. An important application of the Normalized Difference Vegetation Index (NDVI) is obtaining the crop coefficient (Kc). The aims of this study were to analyze NDVI temporal profiles and to obtain Kc from the NDVI vegetation index product MOD13Q1. The analysis is based on the phenological stages of irrigated soybean crops in the municipality of Planura/MG during the 2010/2011 growing season. Areas planted with irrigated soybean were identified through fieldwork. Temporal series of the MOD13Q1 products were used to analyze NDVI, allowing the extraction of NDVI values for all points in the period studied. The NDVI temporal profiles showed a similar pattern to each other and corresponded to the crop cycle. The KcNDVI values for the MOD13Q1 products were well correlated to the FAO Kc values (r2=0.72). Thus, NDVI can be used as an alternative for obtaining crop coefficient (Kc).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901683&lng=en&tlng=enMOD13Q1estádios fenológicosperfis temporais |
| spellingShingle | Thálita Carrijo de Oliveira Elizabeth Ferreira Antônio Augusto Aguilar Dantas Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean Ciência Rural MOD13Q1 estádios fenológicos perfis temporais |
| title | Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean |
| title_full | Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean |
| title_fullStr | Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean |
| title_full_unstemmed | Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean |
| title_short | Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean |
| title_sort | temporal variation of normalized difference vegetation index ndvi and calculation of the crop coefficient kc from ndvi in areas cultivated with irrigated soybean |
| topic | MOD13Q1 estádios fenológicos perfis temporais |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901683&lng=en&tlng=en |
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