When I moved to Southern California, I arrived with an understanding of some of the challenges related to landscape design in a semi-arid and arid climate. Prior to my relocation, I had experiences with turf renovation projects and low water landscape projects in the California Central Valley, another region facing similar water scarcity issues as Southern California. With these projects, I became fascinated with the desert and desert plants, specifically the harsh environments that host unique ecosystems of flora and fauna, life easily missed if one doesn’t recognize their subtleties underfoot.
My fascination with the desert has inspired me to make a list of arid destinations in Southern California, all with the purpose of documenting one of my favorite ecologies. On that list is the Salton Sea, a curious large body of water with an interesting past and present hydrology (a curiosity shared by others here at AHBE).
The Salton Sea is a 343 square mile saline lake located in the Coachella Valley. Inflows include the Alamo River, New River, and Whitewater. The wild part is? There are no outflows.
The lake is actually a historically dry bed that only filled after a catastrophic canal flooding and overtopping after a late storm. The storm caused unprecedented peak flows from the Colorado River into the lake bed, forming what we know as the Salton Sea in 1905. This landscape is another great example of nature’s adaptability after human intervention.
Over time the Salton Sea has become a stopover for migrating birds. Various small wildlife can be found taking advantage of the landscaped spaces and the created water body.
While a new ecology has existed since the lake’s unforeseen creation, the lake is continually shrinking with every passing year due to surface evaporation and decreased inlet flows related to drought and lower volumes of irrigation runoff. Salinity and boron concentrations continue to increase, decreasing the chances of a habitable environment for the various aquatic plants and animals that currently call the Salton Sea home.
The Salton Sea – once a popular freshwater lake used for recreation – has continuously become more and more polluted, its increasing salinity unideal for most recreation. Eutrophication and alageblooms from concentrated runoff have caused fish populations to decline among all introduced stock fish, with only the Mozambique Tilapia, Oreochromis mossambicus, eking out an existence. Dead fish litter the shores of the lake, the results of fish kills, their life cycle, and the fact there are no outlets from the lake.
As the lake shrinks in size, the landscape will begin to take another form. The dry lake basin and its salt deposits will become an ever-changing dynamic landscape. The birds that have used the space along their migration paths will (have to) find a new place to stop. Fish will continue to scatter the shores, and the place will take on a new ecological form.
What was a heavy-handed anthropologic destruction of a natural ecology became something new. How will nature’s resilience continue to adapt to these changing conditions? Is this a temporal landscape, nature’s way of healing a wound. Or is the Salton Sea just another example of a failing ecology?