Conceptual Framework for the National Pilot Project on Livestock and the Environment, Livestock Series Report 2
为评估集中式动物饲养操作（CAFO）污染治理政策的经济与环境影响，构建了概念框架和集成建模系统，对研究非点源污染的政策制定者有用。
Assessing the effects of alternative policies that regulate nonpoint pollution from concentrated animal feeding operations (CAFOs) requires insight into the interactions of livestock production practices, waste management technologies, and their impacts on the environment. CAFOs have been identified as a source of nutrient loadings that impair ground and surface water quality, and they can emit intense odor that impairs air quality. This report describes the conceptual framework and the integrated modeling system being developed to evaluate the economic and environmental impacts of alternative policies that abate pollution from CAFOs.