作者：寒星
标签：无
评论：没有评论
http://photography.nationalgeographic.com/photography/photo-of-the-day/irrigation-oregon-pod.html
Alfalfa Field Irrigation, Oregon
Photograph by David McLain
This Month in Photo of the Day: Nature
A quarter-mile-long (0.4-kilometer-long) wheel line spritzes an Oregon alfalfa field. Many farmers in the upper reaches of the Klamath Basin are replacing such wheel-line irrigation with more modern methods, and improving the water efficiency of their operations.
See more photographs from the December 2008 feature story "Klamath River."
译文：
紫苜蓿田的灌溉系统，俄勒冈
摄影：David McLain
本月每日一图的主题是：自然
一台1/4英里（0.4公里）长的滚移式喷灌机正在灌溉俄勒冈的一片紫苜蓿田。许多克拉马斯盆地高处的农场主正在用更现代化的方法取代这些滚移式喷灌机，这使他们用水的效率变得更高了。