Water: Its Changing Role in U.S. Agriculture
探讨美国粮食安全与日益减少的水资源之间的关系，指出不能仅通过考察水资源本身来判断粮食供应是否受威胁，而需分析农业生产中所有资源的相互作用。
The interrelationship between food security of the United States and a diminishing water resource balances on the condition of that water resource, the quantity of other substitute resources, and the level of future technology. The answer to whether food supplies in the United States can be threatened by a given resource such as water cannot be answered solely by examining the resource in question. Rather the interactions of all resources used in the production of agricultural commodities must be analyzed.