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WeightNameValue
1000 Titel
  • Carbon budgets of potential tropical perennial grass cropping scenarios for bioenergy feedstock production
1000 Autor/in
  1. Pawlowski, Meghan |
  2. Meki, Manyowa N. |
  3. Kiniry, James R. |
  4. Crow, Susan |
1000 Erscheinungsjahr 2018
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2018-09-24
1000 Erschienen in
1000 Quellenangabe
  • 13:17
1000 Copyrightjahr
  • 2018
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.1186/s13021-018-0102-8 |
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6153195/ |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • BACKGROUND: The environmental costs of fossil fuel consumption are globally recognized, opening many pathways for the development of regional portfolio solutions for sustainable replacement fuel and energy options. The purpose of this study was to create a baseline carbon (C) budget of a conventionally managed sugarcane (Saccharum officinarum) production system on Maui, Hawaii, and compare it to three different future energy cropping scenarios: (1) conventional sugarcane with a 50% deficit irrigation (sugarcane 50%), (2) ratoon harvested napiergrass (Pennisetum purpureum Schumach.) with 100% irrigation (napier 100%), and (3) ratoon harvested napiergrass with a 50% deficit irrigation (napier 50%). RESULTS: The differences among cropping scenarios for the fossil fuel-based emissions associated with agricultural inputs and field operations were small compared to the differences associated with pre-harvest burn emissions and soil C stock under ratoon harvest and zero-tillage management. Burn emissions were nearly 2000 kg Ceq ha−1 year−1 in the conventional sugarcane; whereas soil C gains were approximately 4500 kg Ceq ha−1 year−1 in the surface layer of the soil profile for napiergrass. Further, gains in deep soil profile C were nearly three times greater than in the surface layer. Therefore, net global warming potential was greatest for conventional sugarcane and least for napier 50% when deep profile soil C was included. Per unit of biomass yield, the most greenhouse gas (GHG) intensive scenario was sugarcane 50% with a GHG Index (GHGI, positive values imply a climate impact, so a more negative value is preferable for climate change mitigation) of 0.11 and the least intensive was napiergrass 50% when a deep soil profile was included (GHGI = − 0.77). CONCLUSION: Future scenarios for energy or fuel production on former sugarcane land across the Pacific Basin or other volcanic islands should concentrate on ratoon-harvested crops that maintain yields under zero-tillage management for long intervals between kill harvest and reduce costs of field operations and agricultural input requirements. For napiergrass on Maui and elsewhere, deficit irrigation maximized climate change mitigation of the system and reduced water use should be part of planning a sustainable, diversified agricultural landscape.
1000 Sacherschließung
lokal Sugarcane
lokal Ratoon crop
lokal Global warming potential
lokal Napiergrass
lokal Greenhouse gas index
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/uri/UGF3bG93c2tpLCBNZWdoYW4=|https://frl.publisso.de/adhoc/uri/TWVraSwgTWFueW93YSBOLg==|https://frl.publisso.de/adhoc/uri/S2luaXJ5LCBKYW1lcyBSLg==|https://orcid.org/0000-0001-8735-1580
1000 Label
1000 Förderer
  1. U.S. Department of Energy |
  2. Office of Naval Research |
  3. U.S. Department of Agriculture |
  4. Agricultural Research Service |
  5. National Institute of Food and Agriculture |
1000 Fördernummer
  1. DE-FG36-08GO88037
  2. N00014-12-1-0496 ; N00014-16-1-2221
  3. 60-3098-5-006
  4. #60-3098-5-006
  5. HAW01130-H
1000 Förderprogramm
  1. -
  2. Interagency Reimbursable Agreement
  3. Interagency Reimbursable Agreement
  4. Interagency Reimbursable Agreement
  5. -
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer U.S. Department of Energy |
    1000 Förderprogramm -
    1000 Fördernummer DE-FG36-08GO88037
  2. 1000 joinedFunding-child
    1000 Förderer Office of Naval Research |
    1000 Förderprogramm Interagency Reimbursable Agreement
    1000 Fördernummer N00014-12-1-0496 ; N00014-16-1-2221
  3. 1000 joinedFunding-child
    1000 Förderer U.S. Department of Agriculture |
    1000 Förderprogramm Interagency Reimbursable Agreement
    1000 Fördernummer 60-3098-5-006
  4. 1000 joinedFunding-child
    1000 Förderer Agricultural Research Service |
    1000 Förderprogramm Interagency Reimbursable Agreement
    1000 Fördernummer #60-3098-5-006
  5. 1000 joinedFunding-child
    1000 Förderer National Institute of Food and Agriculture |
    1000 Förderprogramm -
    1000 Fördernummer HAW01130-H
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6417389.rdf
1000 Erstellt am 2019-11-08T10:52:42.748+0100
1000 Erstellt von 284
1000 beschreibt frl:6417389
1000 Bearbeitet von 218
1000 Zuletzt bearbeitet Fri Feb 25 16:32:19 CET 2022
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1000 Vgl. frl:6417389
1000 Oai Id
  1. oai:frl.publisso.de:frl:6417389 |
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