Comments on: Potential biofuel crops in Hawaiʻi may successfully sequester carbon in soil /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/ News from the University of Hawaii Fri, 08 May 2020 22:52:46 +0000 hourly 1 By: Richard Rodriguez /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-630126 Tue, 21 Feb 2017 21:47:39 +0000 http://www.hawaii.edu/news/?p=55048#comment-630126 Thoughts on other C4 grass available to consider such as Giant King Grass or poplar or bamboo basgasse? Thanks!
Richard

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By: Patra Hebson /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-622330 Sun, 22 Jan 2017 10:25:11 +0000 http://www.hawaii.edu/news/?p=55048#comment-622330 In reply to Susan Crow.

I know that zero tillage is providing better quality production, higher production volume, less pest attacks, and taste of the food crops is improved, but this is additional good news that a ‘no tillage policy’ also plays a role in the carbon footprint by helping that the decaying roots are not allowing escaping carbon into the atmosphere when no tillage is followed! I never considered that before!

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By: Patra Hebson /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-622327 Sun, 22 Jan 2017 10:18:25 +0000 http://www.hawaii.edu/news/?p=55048#comment-622327 In reply to Susan Crow.

Very good reply to the food comment. We could use more people who want to be farmers in Hawaii to help use the fallow planting areas.

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By: Patra Hebson /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-622325 Sun, 22 Jan 2017 10:15:27 +0000 http://www.hawaii.edu/news/?p=55048#comment-622325 In reply to Susan Crow.

I appreciate your detailed reply ! Thank you.
Would you know, can you provide information on my following question:

How is the system on Kauai where they grow the Albezia Tree on island, its speed in growth considered faster than other crops. and then the use of it for the bio fuel source comparing to these fuels you are working as carbon footprint and also the aspect of sequestering?

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By: Susan Crow /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-621649 Thu, 19 Jan 2017 23:48:39 +0000 http://www.hawaii.edu/news/?p=55048#comment-621649 In reply to Eddie.

Thank you to everyone for the comments!
Yes, food production is extraordinarily important as well. So much agricultural land in Hawaii is fallow, abandoned and/or being converted to development. Getting the land back into agriculture to improve food and energy independence in Hawaii is a common goal.

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By: Eddie /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-621391 Thu, 19 Jan 2017 03:44:24 +0000 http://www.hawaii.edu/news/?p=55048#comment-621391 Hawaii doesn’t need biofuel crops, it needs food. People are starving out here. Food crops also reduce the carbon and the urban development footprint, create jobs, and provide the community with a service. If everyone could eat locally and spend very little because the land was used for food and the communities were strong, why would we need to drive three hours through traffic into town to earn bread in our biofueled or electric cars?

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By: Susan Crow /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-621371 Thu, 19 Jan 2017 01:53:19 +0000 http://www.hawaii.edu/news/?p=55048#comment-621371 In reply to Howard G. Forbes.

We’ve found in similar systems on Oahu that decaying roots predominantly stay as soil carbon and are not lost to the atmosphere at carbon dioxide. Root decay products and the soil microbes become stabilized in the soil and are sequestered, as long as the management practice is sustainable. In this study, the soil is protected from losses because it is a zero-tillage system. This is the critical factor to facilitating soil carbon sequestration.

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By: Howard G. Forbes /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-621310 Wed, 18 Jan 2017 21:48:38 +0000 http://www.hawaii.edu/news/?p=55048#comment-621310 The sugarcane root system which sequesters the carbon, will release the carbon as carbon dioxide and methane when the root decomposes. The root will begin to decompose as soon as the crop is harvested or dies.

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By: Susan Crow /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-620956 Tue, 17 Jan 2017 20:32:44 +0000 http://www.hawaii.edu/news/?p=55048#comment-620956 Burning fuel of any origin releases carbon dioxide to the atmosphere; the benefit of biofuels is the replacement of fossil resources with renewable biomass. This is the carbon-neutral component to biofuels (the carbon emitted was recently fixed through photosynthesis), but as pointed out, the trick is to have enough sequestered to more than cover the incurred carbon costs of production, conversion, and transportation. The magnitude of soil carbon sequestration in the study gives us hope that we can achieve the ideal net carbon benefit of the whole system. Looking forward, as part of a renewable energy portfolio for Hawaii biomass-derived fuel or energy can become even more beneficial as the external energy requirements of the system are replaced by other forms of renewables such as wind and solar.

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By: Patra Hebson /news/2017/01/13/potential-biofuel-crops-in-hawaii-may-successfully-sequester-carbon-in-soil/#comment-620322 Sun, 15 Jan 2017 11:37:07 +0000 http://www.hawaii.edu/news/?p=55048#comment-620322 This is great news. The carbon sequestering of these two grasses is exciting to hear about for assisting us to have a clean environment and control toxicity to the atmosphere. Maybe if this can be implemented and utilized in a mass way in the Hawaiian islands we will see the effects here soon! The burning of the bio fuels concerns me though as carbon pollution. That factor may offset benefits of the carbon sequestering. I look forward to seeing more studies completed on the actual effects to the carbon footprint after burning is fully incorporated into equations for the final carbon footprint of using these two grasses as bio fuels.

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