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Investigating the i...
Investigating the impacts of biochar on water fluxes in a rice experiment in the dry corridor of Central America, Costa Rica
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- Fischer, Benjamin M. C. (författare)
- Uppsala universitet,Stockholms universitet,Institutionen för naturgeografi,Bolincentret för klimatforskning (tills m KTH & SMHI),Uppsala University, Sweden,Luft-, vatten- och landskapslära,Department of Physical Geography Stockholm University Stockholm Sweden.;Bolin Centre for Climate Research Stockholm University Stockholm Sweden.
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- Morillas, Laura (författare)
- Centre for Sustainable Food Systems The University of British Columbia Vancouver British Columbia Canada
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- Rojas Conejo, Johanna (författare)
- Water Resources Center for Central America and the Caribbean (HIDROCEC‐UNA), Universidad Nacional de Costa Rica Guanacaste Costa Rica
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- Sánchez-Murillo, Ricardo (författare)
- Stable Isotopes Research Group and Water Resources Management Laboratory, Universidad Nacional Heredia Costa Rica
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- Suárez Serrano, Andrea (författare)
- Water Resources Center for Central America and the Caribbean (HIDROCEC‐UNA), Universidad Nacional de Costa Rica Guanacaste Costa Rica
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- Frentress, Jay (författare)
- Free University of Bolzano Italy;Water Resources, Ramboll Sverige AB Stockholm Sweden
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- Cheng, Chih-Hsin (författare)
- School of Forestry and Resource Conservation National Taiwan University Taipei Taiwan
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- Garcia, Monica (författare)
- Research Centre for the Management of Agricultural and Environmental Risks (CEIGRAM), E.T.S.I. Agronomica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid Madrid Spain
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- Manzoni, Stefano (författare)
- Stockholms universitet,Institutionen för naturgeografi,Bolincentret för klimatforskning (tills m KTH & SMHI),Department of Physical Geography Stockholm University Stockholm Sweden;Bolin Centre for Climate Research Stockholm University Stockholm Sweden
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- Johnson, Mark S. (författare)
- Department of Earth, Ocean and Atmospheric Sciences The University of British Columbia Vancouver British Columbia Canada;Institute for Resources, Environment and Sustainability The University of British Columbia Vancouver British Columbia Canada
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- Lyon, Steve W., 1978- (författare)
- Stockholms universitet,Institutionen för naturgeografi,Bolincentret för klimatforskning (tills m KTH & SMHI),Department of Physical Geography Stockholm University Stockholm Sweden;Bolin Centre for Climate Research Stockholm University Stockholm Sweden;School of Environment and Natural Resources Ohio State University Ohio USA
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(creator_code:org_t)
- 2022-12-27
- 2022
- Engelska.
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Ingår i: Hydrological Processes. - : Wiley. - 0885-6087 .- 1099-1085. ; 36:12
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Amending soils with biochar, a pyrolyzed organic material, is an emerging practice to potentially increase plant available water and reduce the risks associated with climatic variability in traditionally-rainfed tropical agricultural systems. To investigate the impacts of biochar amendment on soil water storage relative to non-amended soils, we performed an upland rice field experiment in a tropical seasonally dry region of Costa Rica consisting of plots with two different biochar amendments and a control plot. Across all plots, we collected hydrometric and isotopic data (δ18O and δ2H of rain, mobile soil, ground and rice xylem water). We observed that the soil water retention curves for biochar treated soils shifted, indicating that rice plants had 2% to 7% more water available throughout the growing season relative to the control plots and thus could withstand dry spells up to seven extra days. Furthermore, the isotopic composition of plant water in biochar and control treatments were rather similar, indicating that rice plants in different treatments likely consumed similar water. Hence, we observed that biochar amendments can stabilize water supplies for the rice plants; however, still supplemental irrigation was required to facilitate plant growth during extended dry periods. Ultimately, our findings indicate, that biochar amendments can complement, but not necessarily replace, other water management strategies to help reduce the threat of rainfall variability to rainfed agriculture in tropical regions.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries (hsv//eng)
Nyckelord
- biochar
- soil and plant water
- soil water retention curves
- stable isotopes of water
- tropical agriculture
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Fischer, Benjami ...
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Morillas, Laura
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Rojas Conejo, Jo ...
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Sánchez-Murillo, ...
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Suárez Serrano, ...
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Frentress, Jay
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visa fler...
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Cheng, Chih-Hsin
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Garcia, Monica
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Manzoni, Stefano
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Johnson, Mark S.
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Lyon, Steve W., ...
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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- LANTBRUKSVETENSKAPER
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LANTBRUKSVETENSK ...
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och Lantbruksvetensk ...
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Hydrological Pro ...
- Av lärosätet
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Stockholms universitet
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Uppsala universitet