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ARS Home » Pacific West Area » Riverside, California » Agricultural Water Efficiency and Salinity Research Unit » Research » Research Project #439490

Research Project: Assessment of Greenhouse Gas and Air Quality Benefits of Dairy Digester Installation in California

Location: Agricultural Water Efficiency and Salinity Research Unit

Project Number: 2036-61000-019-004-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Jun 30, 2020
End Date: Jan 3, 2024

Objective:
The primary objective of this project is to evaluate the impacts of land application of manure digester digestate (including separated water and solids components) to traditional land application of raw manure. The focus will be to see if digester application has lower field-scale greenhouse gas and volatile organic compound emissions compared to fields that have traditional manure application. Data from this project will be used to improve manure application practices to minimize greenhouse gas and VOC production.

Approach:
Dr. Anderson's work will focus on applying his micrometeorological expertise and mobile measurement experience to the observational component of this project. Dr. Anderson will assist collaborators in modifying an existing UC-Riverside van platform (LIME-AVOCADO) and mobile meteorological tower to enable it to make flux profile measurements of ammonia and other greenhouse gases (Ashworth et al., 2018; Anderson et al. 2019). Anderson will assist in the processing of meteorological data and advise collaborators on sampling protocols and guidelines to ensure high observational quality. Dr. Anderson will travel for the first field campaign and collaborate on data analysis.