Lower Sonoran life zone

Lower Sonoran life zone

[′lō·ər sə′nȯr·ən ′līf ‚zōn]
(ecology)
A term used by C.H. Merriam to describe the climate and biotic communities of subtropical deserts and thorn savannas in the southwestern United States.
References in periodicals archive ?
Presently, the site represents the Mojave Desert Lower Sonoran life zone.
By 6,300 ybp, black mats were gone and falling water tables were evident, resulting in the current Mojave Desert Lower Sonoran life zone.