This product system represents the poultry meat produced for human consumption as a result of producing one broiler. Both types of live weight poultry are at the farm gate, ready for transport to the processing plant, although not necessarily at the same farm. It includes the fraction of a spent hen attributable to the production of one broiler.

The swine production datasets are the product of ongoing work by the University of Arkansas Center for Agricultural and Rural Sustainability, the United States Department of Agriculture, and the National Pork Board. The data documentation in this metadata record describes the project background and nomenclature, in addition to a description of the dataset structure, individual unit processes, and production scenarios. Flow-level metadata descriptions for selected unit processes within the U.S. swine dataset can be found in the Appendix section.

This document describes the preparation of datasets for the LCA Commons that represent unit process/ gate-to-gate operations for field operations (a.k.a. work processes e.g., soil preparation and planting for conventional tillage, applying fertilizer with incorporation) and farm implements (e.g., operation of moldboard plows, broadcast sprayers) used in the production of field crops. The data cover 49 types of field operations and 104 types of farm implements for 9 crops in 36 U.S. states, resulting in the development of almost 19,000 unit process datasets. The field operation and farm implement datasets described herein fall between the field crop production and the aggregated fleet equipment datasets already in the Commons.

The goals for the release of Version 2 of the field crop data are to rework the data to link up with the tier 2 field operations/ work process datasets, eliminate the use of service processes, and rework balance parameters using a simpler formula. Models represent states that produced field crops in the ARMS survey years included.