In the Water-Scarce Southwest, an Ancient Irrigation System Disrupts Big Agriculture
Water in the American Southwest has never been abundant. Its availability fluctuates depending on conditions like drought and mountain snowpack that feeds streams and rivers. But experts predict a future of greater extremes: longer and hotter heat waves in the summer, less precipitation, decreased snowpack, and more severe and frequent droughts that will place greater stress on water users.
In New Mexico and Colorado, legal statutes enable an area’s original water users to transfer their portions of the resource, via pipelines, to the highest bidder virtually anywhere in the state. When scarcity hits, industrial mining and agricultural operations can afford to purchase additional water while small-scale farmers and ranchers remain vulnerable; in both states, water use already exceeds availability.
But for over a century, acequias—an ancient form of community water management originating at least 1,000 years ago and now used by small-scale and backyard farmers and ranchers—have resisted the flow of water toward corporations in New Mexico and Colorado. After receiving wider legal protections for self-governance in the 2000s, acequias are disrupting modern agricultural practices by assuring the equitable distribution of water to rural communities.
An ancient system of water management
Acequias appeared in the United States centuries before New Mexico and Colorado were incorporated into the nation: more than a century, in fact, before the United States even existed. Brought by Spanish settlers to Mexican territory in the 16th century (including what is today the American Southwest), acequias were a system perfectly suited to the arid, high-elevation landscape where drought was common and the availability of water varied drastically from season to season and year to year.
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