New Mexico’s acequias running dry ~ NYT

By Simon Romero

  • July 13, 2021

LEDOUX, N.M. — Nestled in the Sangre de Cristo Mountains, the remote village of Ledoux has for more than a century relied on a network of irrigation ditches to water its crops. The outpost’s acequias, as New Mexico’s fabled canals are known, are replenished annually by snowmelt and rains. But with the Southwest locked in an unrelenting drought, they have begun to run dry.

“I never thought I’d witness such a crash in our water sources,” said Harold Trujillo, 71, a farmer in Ledoux who has seen his production of hay collapse to about 300 bales a year from 6,000. “I look at the mountains around us and ask: ‘Where’s the snow? Where are the rains?’”

Acequias — pronounced ah-SEH-kee-ahs — borrow their name from the Arabic term for water conduit, al-sāqiya. They are celebrated in songbooks and verse, and they have endured in the state for centuries. Spanish colonists in New Mexico began digging the canals in the 1600s, building on water harvesting techniques honed by the Pueblo Indians.

Even then, the acequia reflected the blending of cultural traditions. Muslims introduced acequias in Spain after invading the Iberian Peninsula in the eighth century, using gravity to manage irrigation flows. Acequias eventually spread around the Spanish-speaking world.

Making subsistence farming feasible in arid lands, New Mexico’s communally managed acequias persisted through uprisingsepidemics and wars of territorial conquest, preserving a form of small-scale democratic governance that took root before the United States existed as a country.

But in a sign of how climate change has begun to upend farming traditions across the Southwest, the megadrought afflicting New Mexico and neighboring states may amount to the acequias’s biggest challenge yet.

Harold Trujillo walked along the Morphy Lake dam in Ledoux. “I never thought I’d witness such a crash in our water sources,” he said.
Harold Trujillo walked along the Morphy Lake dam in Ledoux. “I never thought I’d witness such a crash in our water sources,” he said.Credit…Ramsay de Give for The New York Times

The difficulties confronting farmers in Ledoux — pronounced locally as Leh-DOOKS — exemplify those also facing hundreds of acequias around New Mexico, and a smaller number in southern Colorado and Texas.

Climate researchers say that the water shortages vexing the acequias are not surprising after years of warming temperatures, and that the depleted reservoirs and the spread of colossal wildfires around the West are a clear indication of the crisis.

Making matters worse, the monsoon rains that once regularly soaked northern New Mexico failed to materialize last summer. And the snowpack over the winter disappointed once again. Parts of New Mexico, including the area around Ledoux, have received some rain in recent weeks, with more in the forecast this week, but the precipitation has done little to improve abnormally dry conditions.Climate Fwd  A new administration, an ongoing climate emergency — and a ton of news. Our newsletter will help you stay on top of it. Get it.

More than 77 percent of New Mexico is in severe drought, limiting pasture yields and stunting irrigated crops, according to the National Drought Mitigation Center.

Thomas Swetnam, a scientist who studies tree rings to interpret changes in climate, said the drought this century in the Southwest had been so severe and prolonged that its few rivals in the last millennium include a multidecade stretch of an extraordinary drought in the late 16th century.

“This is probably the second-worst drought in 1,200 years,” said Mr. Swetnam, a professor emeritus of dendrochronology at the University of Arizona who now lives in New Mexico, where he operates the Jemez Mountains Tree-Ring Lab.

Some acequias, notably those along the Rio Grande, are still delivering water to farmers in a show of resilience. But many acequias with other water sources, like lakes or small tributaries, are taking a direct hit.

In the 1980s and ’90s, the mountain lake that villagers have relied upon since the 19th century to sustain the town’s acequias was filled with relatively plentiful snowfall and rainfall. But two decades ago, exceptionally arid weather became the norm, drying up some of Ledoux’s ditches.

“There’s no better way of raising tension in a village than to have its acequias go dry,” said Mr. Trujillo, the farmer. He said that bickering over acequia flows had intensified as farmers vied for increasingly scarce irrigation water.

Mr. Trujillo’s dried-out acequias.
Mr. Trujillo’s dried-out acequias.Credit…Ramsay de Give for The New York Times

The drought, Mr. Trujillo said, had also escalated a decades-long exodus from Ledoux to larger towns and cities. Ruins of adobe homes are scattered around the village’s old Catholic church, giving parts of Ledoux the feel of a ghost town.

Paula Garcia, who was raised on a ranch in northern New Mexico, said she had seen the drying trend grow worse over her lifetime. Mora, the town where she lives, was once a thriving farming outpost.

Now, she said, “the Mora River is chronically dry.” That means there is sometimes enough precipitation for one of the acequias around her home to flow with water; the other two are drying out.

“It’s the same in one community after another,” said Ms. Garcia, 49,executive director of the New Mexico Acequia Association, a nonprofit group aiming to protect the 700 or so acequias in the state.

Ms. Garcia says she regularly receives calls from farmers alarmed about acequias running low or even completely dry. Sometimes it is the mayordomo, or ditch boss, who calls. Other times it is one of the parciantes, the individual irrigators.

In the village of Hernandez, Ms. Garcia said farmers were dealing with critical water shortages on the Rio Chama, a tributary of the Rio Grande. Farmers in the communities of Cañon, Jemez Springs, Nambé and Santa Cruz, all in northern New Mexico, face similar conditions.

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