ONE WATERSHED

 

This article is the first installment in the eight-part “One Watershed” series, produced by the Tulare Basin Wildlife Partners and Tulare Basin Watershed Initiative. 

Watersheds are distinct places, defined by meaningful boundaries that, unbeknownst to many of us, have a significant impact on, well, just about everything. 

Water is the lifeblood of our society, especially in the arid Central Valley, where fertile soils have given rise to an agricultural economy that helps feed the world. As the region’s population grows, climate changes, and groundwater supplies shrink, it is imperative that we collectively manage our watershed in the smartest way possible. 

The first step to smart management is to expand our collective knowledge of the watershed in which we live. Every watershed is unique, and the Tulare Lake watershed — also called the Tulare Lake Basin — is no exception. Our watershed and all of the stories about its particular hydrology, ecology, geology, history, culture, and economy is something to know, take pride in, and take care of. 

 

The Tulare Lake watershed 

A watershed is the area of land where all of the water that falls into it naturally travels to the same destination. The Tulare Lake watershed gets its name from the former lake that once received water flows from the entire region, including snowmelt from the Sierra Nevada. Tulare Lake was once the largest freshwater lake and wetland complex west of the Mississippi River, spanning up to 790 square miles (in 1862), or four times the surface area of Lake Tahoe (192 square miles).

The watershed stretches up to approximately 134 miles east to west — from the Sierra Nevada to the Coast Ranges — and 163 miles north to south  — from the San Joaquin River to the Tehachapi Range. In total, it covers about 17,000 square miles.  

The Tulare Lake watershed is outstanding in a number of ways. The upper watershed boasts some of the nation’s most spectacular protected areas, including Sequoia and Kings Canyon National Parks and Sierra and Sequoia national forests. 

This water forms the headwaters of the Kaweah, Kings, Kern, and Tule rivers, as well as other mountain streams and creeks that flow to the valley floor, historically converging in Tulare Lake. 

That same water also quenches the thirst of a growing population of diverse communities and the most productive agricultural lands in the nation. Fresno, Tulare, Kings, and Kern counties are consistently among the nation’s top producers of a variety of nuts, fruits, vegetables, and dairy and animal products. 

The hydrology of the Tulare Basin is a complicated story, as it is for most California watersheds. Water enters the region through a variety of sources — direct precipitation, runoff from mountain snowmelt, imported water through the State Water Project and federal Central Valley Project, and groundwater pumped from underground aquifers. 

The amount of water from each of these sources varies greatly depending upon annual precipitation. In dry years such as the last few, groundwater is pumped more heavily to compensate for the shortage of surface water flows. 

This unregulated practice has shrunk reserves to dangerously low levels that are expensive to maintain, caused the land to collapse on itself (land subsidence), and led to contamination of drinking water sources. Coordinated whole watershed management, however, is a promising path toward improving the balance between water supply and demand.

The human history of the Tulare Lake watershed is also a fascinating story. The Yokuts, including Tulare Lake’s Tache Yokuts, were the primary Native American tribes living in the region. 

The Yokuts population was at least as high as 40,000 and probably much higher at the time of European contact. 

In the 1870s, European settlers diverted the rivers and streams that once drained into the Tulare Lake for agriculture. These diversions, and periods of drought, gradually diminished the size of the lake, which devastated the once abundant populations of fish, turtles, and other lake-dwelling species along with lake-visiting species like migratory water birds.

By 1898, the lake dried up completely, only to partially fill during times of flood. 

Today, some say that restoring the lakebed’s ability to naturally hold flood flows would benefit water management in the area. But many farmers whose livelihood is rooted in the lakebed are opposed. 

Whatever the solution, it is time that we come together to explore creative, environmentally sustainable, economically sound, whole watershed solutions to our complex supply-and-demand challenges, especially in light of a changing climate. 

 

Natural beauty is a short drive away

It can sometimes seem that the Central Valley, especially the southern half, is disregarded as the undesirable part of California. Despite some unflattering statistics about the region, i.e., poor air quality and educational achievement, there is much to experience and celebrate about the watershed. 

“We tend to treat a place in ways that reflect how we think about the place,” said Rob Hansen, biologist at College of the Sequoias in Visalia. 

To create a more positive and productive attitude toward this place, Rob advises us to redirect any negative or ambivalent energy toward the abundant treasures and opportunities that exist in this unique Tulare Basin watershed. What better way to redirect than to explore?

Here are some Tulare Basin destinations on the Valley floor that everyone should visit:

Allensworth— Discover the quiet grandeur of saltbush desert habitat on the nearby Allensworth Ecological Reserve managed by California Department of Fish and Wildlife. 

Alpaugh— Visit the wetland oasis of the tule-lined Ton Tache wetlands at the Atwell Island restoration project. Enjoy a cacophony of sounds from tree frogs and thousands of marsh birds at dusk.

Angiola— Enjoy the sights and sounds of a nesting colony of white-faced ibis in restored tule marshes on private duck club lands.

Bakersfield— Bike along the 32-mile long Kern River Parkway.

Centerville— Learn about native riparian flora along the 120-acre China Creek Nature Trail (developed by the Sequoia Chapter of the California Native Plant Society in cooperation with El Rio Reyes Conservation Trust.

Delano (just west)— Drive around the 6-mile tour route to see cottontails, coyotes, and dozens of species of wintering water birds at U.S. Fish and Wildlife Service’s Kern National Wildlife Refuge.

Exeter— Walk among towering valley oaks and wild grapevines at Sequoia Riverlands Trust’s Kaweah Oaks Preserve.

Fowler/Selma/Kingsburg/Orange Cove/Reedley/Sanger— Tour the world-famous Blossom Trail (and Orange Blossom Trail) for an unforgettable scenic drive in February or March.

Friant’s Lost Lake Park— Canoe down the San Joaquin River, led by San Joaquin River Parkway and Conservation Trust.

Lemon Cove— See purple-flowering larkspur, curly-leaved soaproot, and butterfly-like blooms of Mariposa lilies at Tulare County Historical Society’s Lindcove Hogwallow Preserve. And visit Dry Creek Preserve, a restored sycamore alluvial woodland, formerly a gravel quarry. Dry Creek Preserve has picnic and restroom facilities, interpretive signage, and hiking trails.

Lindsay— Peer into 3-inch deep water to discover the ephemeral beauty of vernal pool fairy shrimp and spadefoot toad tadpoles at Sequoia Riverlands Trust’s Herbert Wetland Prairie Preserve.

Mendota— Watch for green-winged teal at California Department of Fish and Wildlife’s Mendota Wildlife Area.

Pixley— Witness the breathtaking flyover of thousands of sandhill cranes coming into the Pixley National Wildlife Reserve at dusk. 

Porterville— Stroll along 2 miles of trails just east of Highway 65 along the Tule River Parkway,

Springville— Enjoy some summer music at River Ridge Ranch, a beautiful working cattle ranch, ecological reserve, guest ranch, and wedding facility in the foothills. 

Wasco (northwest)— Listen to the bizarre chorus of calls given by thousands of State-listed endangered tricolored blackbirds nesting on private duck clubs along Poso Creek.

Woodlake— Watch a bald eagle soaring over Bravo Lake from the always-changing floral splendor of the Bravo Lake Agricultural Botanical Garden.

Yettem— See California tiger salamanders after a January rain at the California Department of Fish and Wildlife’s Stone Corral Ecological Reserve.

Niki Woodard is the Tulare Basin Wildlife Partners communications specialist. 

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