Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique

Potato farming is relevant for global carbon balances and greenhouse emissions, of which gross primary productivity (GPP) is one of the main drivers. In this study, the net carbon ecosystem exchange (NEE) was measured using the Eddy Covariance (EC) method in two potato crops, one of them with an irr...

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Autores principales:	Fabio Ernesto Martínez-Maldonado, Angela María Castaño-Marín, Gerardo Antonio Góez-Vinasco, Fabio Ricardo Marin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	potato crop water management water deficit net ecosystem carbon exchange ecosystem respiration Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/f611dd869c8e4ed79649727f93a59ca8
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spelling	oai:doaj.org-article:f611dd869c8e4ed79649727f93a59ca82021-11-25T19:15:42ZGross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique10.3390/w132232232073-4441https://doaj.org/article/f611dd869c8e4ed79649727f93a59ca82021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3223https://doaj.org/toc/2073-4441Potato farming is relevant for global carbon balances and greenhouse emissions, of which gross primary productivity (GPP) is one of the main drivers. In this study, the net carbon ecosystem exchange (NEE) was measured using the Eddy Covariance (EC) method in two potato crops, one of them with an irrigation system, the other under rainfed conditions. Accurate NEE partition into GPP and ecosystem respiration (RECO) was carried out by fitting a light response curve. Direct measurements of dry weight and leaf area were performed from sowing to the end of canopy life cycle and tuber bulking. Agricultural drought in the rainfed crop resulted in limited GPP rate, low leaf area index (LAI), and low canopy carbon assimilation response to the photosynthetically active radiation (PAR). Hence, in this crop, there was lower efficiency in tuber biomass gain and NEE sum indicated net carbon emissions to atmosphere (NEE = 154.7 g C m<sup>−2</sup> ± 30.21). In contrast, the irrigated crop showed higher GPP rate and acted as a carbon sink (NEE = −366.6 g C m<sup>−2</sup> ± 50.30). Our results show, the environmental and productive benefits of potato crops grown under optimal water supply.Fabio Ernesto Martínez-MaldonadoAngela María Castaño-MarínGerardo Antonio Góez-VinascoFabio Ricardo MarinMDPI AGarticlepotato cropwater managementwater deficitnet ecosystem carbon exchangeecosystem respirationHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3223, p 3223 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	potato crop water management water deficit net ecosystem carbon exchange ecosystem respiration Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	potato crop water management water deficit net ecosystem carbon exchange ecosystem respiration Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Fabio Ernesto Martínez-Maldonado Angela María Castaño-Marín Gerardo Antonio Góez-Vinasco Fabio Ricardo Marin Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique
description	Potato farming is relevant for global carbon balances and greenhouse emissions, of which gross primary productivity (GPP) is one of the main drivers. In this study, the net carbon ecosystem exchange (NEE) was measured using the Eddy Covariance (EC) method in two potato crops, one of them with an irrigation system, the other under rainfed conditions. Accurate NEE partition into GPP and ecosystem respiration (RECO) was carried out by fitting a light response curve. Direct measurements of dry weight and leaf area were performed from sowing to the end of canopy life cycle and tuber bulking. Agricultural drought in the rainfed crop resulted in limited GPP rate, low leaf area index (LAI), and low canopy carbon assimilation response to the photosynthetically active radiation (PAR). Hence, in this crop, there was lower efficiency in tuber biomass gain and NEE sum indicated net carbon emissions to atmosphere (NEE = 154.7 g C m<sup>−2</sup> ± 30.21). In contrast, the irrigated crop showed higher GPP rate and acted as a carbon sink (NEE = −366.6 g C m<sup>−2</sup> ± 50.30). Our results show, the environmental and productive benefits of potato crops grown under optimal water supply.
format	article
author	Fabio Ernesto Martínez-Maldonado Angela María Castaño-Marín Gerardo Antonio Góez-Vinasco Fabio Ricardo Marin
author_facet	Fabio Ernesto Martínez-Maldonado Angela María Castaño-Marín Gerardo Antonio Góez-Vinasco Fabio Ricardo Marin
author_sort	Fabio Ernesto Martínez-Maldonado
title	Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique
title_short	Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique
title_full	Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique
title_fullStr	Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique
title_full_unstemmed	Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique
title_sort	gross primary production of rainfed and irrigated potato (<i>solanum tuberosum</i> l.) in the colombian andean region using eddy covariance technique
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f611dd869c8e4ed79649727f93a59ca8
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Gross Primary Production of Rainfed and Irrigated Potato (<i>Solanum tuberosum</i> L.) in the Colombian Andean Region Using Eddy Covariance Technique

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