Saving water in the West could come with a hidden wildfire risk
Retiring farmland in the western U.S. saves water but may increase wildfire risk by removing natural firebreaks that help stop advancing flames.
Letting a thirsty field go dry in a drought looks like a clean trade: less water pumped, more left in the river. The field doesn’t stay empty, though. Across most of the West where farmland has gone out of production, grass and brush grew back in its place, and both burn more readily than a crop does.
Farmland, meanwhile, often acts as a barrier to advancing wildfires. Retiring farmland therefore involves another trade-off: water saved at the potential cost of a natural firebreak.
O_O White people are so stupid. If you just quit cropping a field, you get weeds and brush -- the bandage plants, because it's their job to cover bare ground as fast as possible -- and some grasses. You're not supposed to do that.
You need to restore the ecosystem. Put back at least some native plant species. Return native herbivores -- especially keystone species like prairie dogs and buffalo. These will help recreate a grassland ecosystem that is resilient to locally appropriate amounts of water and fire.
If you want firebreaks, restore wetlands. In much of Northern America you can recruit beavers to do this for free.
Check your reservation territory. If you are retiring cropland, make sure that it cycles safely into a different use with appropriate mitakuye oyasin to fill the roles in its ecosystem. Understand your tribe's traditions regarding fire management customs.
Retiring farmland in the western U.S. saves water but may increase wildfire risk by removing natural firebreaks that help stop advancing flames.
Letting a thirsty field go dry in a drought looks like a clean trade: less water pumped, more left in the river. The field doesn’t stay empty, though. Across most of the West where farmland has gone out of production, grass and brush grew back in its place, and both burn more readily than a crop does.
Farmland, meanwhile, often acts as a barrier to advancing wildfires. Retiring farmland therefore involves another trade-off: water saved at the potential cost of a natural firebreak.
O_O White people are so stupid. If you just quit cropping a field, you get weeds and brush -- the bandage plants, because it's their job to cover bare ground as fast as possible -- and some grasses. You're not supposed to do that.
You need to restore the ecosystem. Put back at least some native plant species. Return native herbivores -- especially keystone species like prairie dogs and buffalo. These will help recreate a grassland ecosystem that is resilient to locally appropriate amounts of water and fire.
If you want firebreaks, restore wetlands. In much of Northern America you can recruit beavers to do this for free.
Check your reservation territory. If you are retiring cropland, make sure that it cycles safely into a different use with appropriate mitakuye oyasin to fill the roles in its ecosystem. Understand your tribe's traditions regarding fire management customs.