Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/971815 |
Resumo: | In the Brazilian semi-arid region, the intensification of agriculture results in a change of natural vegetation by irrigated crops. To quantify the contrast between these two ecosystems, the large-scale values of water productivity components were modelled in Petrolina (PE) and Juazeiro (BA) municipalities. The SAFER (Simple Algorithm For Evapotranspiration Retrieving) algorithm was used to acquire evapotranspiration (ET), while the Monteith's radiation model was applied for estimating the biomass production (BIO). Moderate Resolution Imaging Spectroradiometer (MODIS) satellite images were used together with agro-meteorological data. In Petrolina and Juazeiro, the mean monthly ET values for irrigated crops were 938 and 739 mm·month−1, with the corresponding ones for natural vegetation of 385 and 194 mm·month−1.Water productivity (WP) was analysed by the ratio of BIO to ET, defined here as the ratio of the net benefits from the mixed agricultural systems to the amount of water required for producing those benefits. The highest incremental WP values, as a result of the irrigated crops introduction, happened outside the rainy period. More spatial WP uniformity occurred in natural vegetation, when comparing with irrigated crops. The most frequent WP values in Petrolina were between 1.6 and 2.2 kg·m−3 while in Juazeiro this range was from 1.0 to 1.6 kg·m−3. The differences between the municipalities can be mainly explained by differences in precipitation and soil water storages conditions, promoting better rainfall use efficiency by the natural vegetation in the first one. The results of the current research are important for appraising the land use change impacts in situations of expanding irrigation areas. |
id |
EMBR_e7ab1ed1e43be9d8fea0488892b6ec04 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/971815 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
spelling |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study.Net radiationSurface resistanceEvapotranspirationBiomass productionIn the Brazilian semi-arid region, the intensification of agriculture results in a change of natural vegetation by irrigated crops. To quantify the contrast between these two ecosystems, the large-scale values of water productivity components were modelled in Petrolina (PE) and Juazeiro (BA) municipalities. The SAFER (Simple Algorithm For Evapotranspiration Retrieving) algorithm was used to acquire evapotranspiration (ET), while the Monteith's radiation model was applied for estimating the biomass production (BIO). Moderate Resolution Imaging Spectroradiometer (MODIS) satellite images were used together with agro-meteorological data. In Petrolina and Juazeiro, the mean monthly ET values for irrigated crops were 938 and 739 mm·month−1, with the corresponding ones for natural vegetation of 385 and 194 mm·month−1.Water productivity (WP) was analysed by the ratio of BIO to ET, defined here as the ratio of the net benefits from the mixed agricultural systems to the amount of water required for producing those benefits. The highest incremental WP values, as a result of the irrigated crops introduction, happened outside the rainy period. More spatial WP uniformity occurred in natural vegetation, when comparing with irrigated crops. The most frequent WP values in Petrolina were between 1.6 and 2.2 kg·m−3 while in Juazeiro this range was from 1.0 to 1.6 kg·m−3. The differences between the municipalities can be mainly explained by differences in precipitation and soil water storages conditions, promoting better rainfall use efficiency by the natural vegetation in the first one. The results of the current research are important for appraising the land use change impacts in situations of expanding irrigation areas.ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; MORRIS SCHERER-WARREN, ANA; FERNANDO B. T. HERNANDEZ, UNESP; RICARDO GUIMARAES ANDRADE, CNPM; JANICE FREITAS LEIVAS, CNPM.TEIXEIRA, A. H. de C.SCHERER-WARREN, M.HERNANDEZ, F. B. T.ANDRADE, R. G.LEIVAS, J. F.2013-11-21T11:11:11Z2013-11-21T11:11:11Z2013-11-2120132013-11-21T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRemote Sensing, v. 11, n. 3, p. 5783-5804, 2013.2072-4292http://www.alice.cnptia.embrapa.br/alice/handle/doc/97181510.3390/rs5115783porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-15T23:57:27Zoai:www.alice.cnptia.embrapa.br:doc/971815Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-15T23:57:27falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-15T23:57:27Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. |
title |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. |
spellingShingle |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. TEIXEIRA, A. H. de C. Net radiation Surface resistance Evapotranspiration Biomass production |
title_short |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. |
title_full |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. |
title_fullStr |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. |
title_full_unstemmed |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. |
title_sort |
Large-scale water productivity assessments with MODIS images in a changing semi-arid environment: a Brazilian case study. |
author |
TEIXEIRA, A. H. de C. |
author_facet |
TEIXEIRA, A. H. de C. SCHERER-WARREN, M. HERNANDEZ, F. B. T. ANDRADE, R. G. LEIVAS, J. F. |
author_role |
author |
author2 |
SCHERER-WARREN, M. HERNANDEZ, F. B. T. ANDRADE, R. G. LEIVAS, J. F. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; MORRIS SCHERER-WARREN, ANA; FERNANDO B. T. HERNANDEZ, UNESP; RICARDO GUIMARAES ANDRADE, CNPM; JANICE FREITAS LEIVAS, CNPM. |
dc.contributor.author.fl_str_mv |
TEIXEIRA, A. H. de C. SCHERER-WARREN, M. HERNANDEZ, F. B. T. ANDRADE, R. G. LEIVAS, J. F. |
dc.subject.por.fl_str_mv |
Net radiation Surface resistance Evapotranspiration Biomass production |
topic |
Net radiation Surface resistance Evapotranspiration Biomass production |
description |
In the Brazilian semi-arid region, the intensification of agriculture results in a change of natural vegetation by irrigated crops. To quantify the contrast between these two ecosystems, the large-scale values of water productivity components were modelled in Petrolina (PE) and Juazeiro (BA) municipalities. The SAFER (Simple Algorithm For Evapotranspiration Retrieving) algorithm was used to acquire evapotranspiration (ET), while the Monteith's radiation model was applied for estimating the biomass production (BIO). Moderate Resolution Imaging Spectroradiometer (MODIS) satellite images were used together with agro-meteorological data. In Petrolina and Juazeiro, the mean monthly ET values for irrigated crops were 938 and 739 mm·month−1, with the corresponding ones for natural vegetation of 385 and 194 mm·month−1.Water productivity (WP) was analysed by the ratio of BIO to ET, defined here as the ratio of the net benefits from the mixed agricultural systems to the amount of water required for producing those benefits. The highest incremental WP values, as a result of the irrigated crops introduction, happened outside the rainy period. More spatial WP uniformity occurred in natural vegetation, when comparing with irrigated crops. The most frequent WP values in Petrolina were between 1.6 and 2.2 kg·m−3 while in Juazeiro this range was from 1.0 to 1.6 kg·m−3. The differences between the municipalities can be mainly explained by differences in precipitation and soil water storages conditions, promoting better rainfall use efficiency by the natural vegetation in the first one. The results of the current research are important for appraising the land use change impacts in situations of expanding irrigation areas. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-11-21T11:11:11Z 2013-11-21T11:11:11Z 2013-11-21 2013 2013-11-21T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Remote Sensing, v. 11, n. 3, p. 5783-5804, 2013. 2072-4292 http://www.alice.cnptia.embrapa.br/alice/handle/doc/971815 10.3390/rs5115783 |
identifier_str_mv |
Remote Sensing, v. 11, n. 3, p. 5783-5804, 2013. 2072-4292 10.3390/rs5115783 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/971815 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503383608983552 |