The effects of actively aerated compost tea on greenhouse gas emissions, soil carbon sequestration in a Sonoma County pome fruit orchard.


SCH Number
Public Agency
Gold Ridge Resource Conservation District (GRRCD)
Document Title
The effects of actively aerated compost tea on greenhouse gas emissions, soil carbon sequestration in a Sonoma County pome fruit orchard.
Document Type
NOE - Notice of Exemption

Document Description
Soil health is one of the primary concerns in pome fruit orchards. Compost tea applications have been shown to increase the number of beneficial microorganisms in soil and increase available nutrients. However, little is known about the lasting effects of actively aerated compost tea on soil carbon sequestration or GHG emissions. At Gabriel Farm, we will establish treatment and control orchard blocks. Current orchard floor management will be adjusted to test the efficacy of actively aerated compost tea applications on soil health, soil water holding capacity, carbon sequestration, and the exchange of GHG and water vapor between the orchard floor and the atmosphere. This project will evaluate the impacts of adding actively aerated compost tea from dairy cow manure vermicompost on soil health, GHG emissions and crop yields. Soil sampling and gas exchange sampling will be conducted to measure change in total organic carbon, bulk density, water infiltration rate, CO2, CH4 and N2O fluxes from each treatment and control fields.

Contact Information
William Hart
Gold Ridge RCD
Lead/Public Agency
2776 Sullivan Road
Sebastopol, CA 95472

Phone : (707) 823-5244 ext. 15

Gold Ridge RCD
Project Applicant


Cross Streets
3175 Sullivan Road

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
The project will not to exceed five acres in size to assure the maintenance, restoration, enhancement, or protection of habitat for fish, plants, or wildlife provided that: (a) There would be no significant adverse impact on endangered, rare or threatened species or their habitat pursuant to section 15065, (b) There are no hazardous materials at or around the project site that may be disturbed or removed, and (c) The project will not result in impacts that are significant when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects.


Notice of Exemption
2020080012_Goldridge RCD   PDF 1543 K

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