Livestock and the Environment: A National Pilot Project. The Policy Space, Economic Model, and Environmental Model Linkages. Livestock Series Report 4
美国环保局资助的跨学科项目，详细说明了政策空间、奶牛场经济模型与环境模拟模型之间的关联，帮助理解项目整体框架。
To address the growing problem of environmental degradation from livestock operations, the U.S. Environmental Protection Agency has sponsored a multidisciplinary project called Livestock and the Environment: A National Pilot Project (NPP). This report details the linkages among the policy space, the dairy farm economic model, and the environmental fate and transport simulation models. A summary of the NPP's conceptual framework illustrates the overall model organization and linkages within the NPP.