Assessing water resource use in livestock production: A review of methods

For each of the methods we distinguish strengths and weaknesses in assessing water resource use in livestock production. As a result, we identify three key areas for improvement: 1) both green and blue water resources should be included in assessments, and presented separately to provide informative results; 2) water quality should not be summarized within quantitative assessments of water resource use; and 3) methods for assessing water use in livestock systems must consider the alternative uses, multiple uses and benefits of a certain resource in a specific location.