Flows and Ecosystem Function Dominate Delta Plan Amendment

Delta Landscapes & Waterways



05
Dec

Flows and Ecosystem Function Dominate Delta Plan Amendment

With the Delta lagging behind the Bay on four of the State of the Estuary Report’s five indicators, the last long-range plan for restoring its ecological health abandoned, and the threats from climate change becoming ever more alarming, the need for a new regulatory vision for the region may never have been greater. A pending amendment to the Delta Plan, shared by Ron Melcer at the State of the Estuary Conference as part of a policy update session, is meant to provide that vision and the strategies to achieve it. The amendment — to Chapter Four of the Delta Plan, which focuses on the Delta ecosystem — was developed in response to the state’s pivot away from the 2013 Bay-Delta...
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Sandhill crane
14
Jun

Wildlife and Way of Life in the North Delta?

There may not be a way to give everyone what they want from the Delta. But there are ways to restore ecosystems while preserving local communities. This is true even along State Route 160, which traverses the most populated and most intensively farmed part of the region. The highway follows the Sacramento River into the Delta, twisting and turning around leveed islands between Freeport and Rio Vista. This is the North Delta and it's a spectacular drive...
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13
Feb

Haggles over the what, where, and when of Delta conservation got a reset this January with the state’s release of a new collaborative framework focused on opportunities, not species.

The California Department of Fish & Wildlife’s new Delta Conservation Framework tries to fill the vision vacuum left by former Governor Brown’s early pivot away from the 2013 Bay-Delta Conservation Plan, a plan that touched in some shape or way on 160,000 acres of the Delta. “It was too big and too unwieldy for people to manage, and there were too many questions about its effects, and how it would be implemented – particularly as it related to the Delta as a unique place,” says the agency’s Carl Wilcox. In 2016, with the help of the Delta Conservancy, CDFW held a series of workshops with landowners, agencies, biologists and others to define new conservation goals and strategies in light of...
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13
Nov

The Nature Conservancy’s venture in growing food crops for wintering cranes on Staten Island is under fire from an unexpected source—the Wetlands Preservation Foundation.

The nonprofit, headed by Stockton tomato packer Dino Cortopassi, is suing TNC and the California Department of Water Resources, which holds a conservation easement on Staten Island, alleging farming practices that cause soil subsidence and threaten levee integrity, and misuse of revenue from farm operations. The 9200-acre farm, acquired by TNC in 2001, is a major destination for migratory greater and lesser sandhill cranes (the latter a California endangered species) as well as Aleutian cackling geese and other birds. As habitat is replaced by houses, orchards, and vineyards, a third of the state’s crane population converges on the island to feed in corn and triticale fields and roost at night. While corn cultivation is recognized as depleting the Delta’s peat...
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13
Nov

Restoring wetlands is an extremely effective way to cool land surfaces, a study conducted in the Sacramento-San Joaquin Delta indicates.

For three years, Kyle Hemes of UC Berkeley and colleagues kept tabs on the heat flux and air flow above three restored Delta wetlands on Twitchell and Sherman islands, and an alfalfa field on Twitchell Island. Surface temperatures at wetlands with open water were up to 5.1 degrees Celsius cooler than the crop field during the daytime. As expected, the dark open water absorbed more solar radiation, and released the energy slowly at night. But wetland vegetation played a role as well. The tall, uneven surfaces of tule and cattail stands, and their patchy distribution, hastened the movement of heat away from the land surface. “Whereas we’re often focused on the greenhouse gas reduction benefits of restoration, the significant cooling...
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26
Sep

Big Restoration Experiment for the Delta’s Dutch Slough

Development agreements were already in place for three parcels of land around Dutch Slough when John Cain first took a hike in this West Delta area in the spring of 1999. “It was clear as day to me that removing the levee would be a great way to restore freshwater wetlands at the mouth of Marsh Creek,” says Cain. Almost two decades later, earthmoving equipment is now preparing 1,178 acres for conversion to marsh habitat.
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13
Nov

Broad buy-in is the hoped for result of a proposed new landscape-level vision for conservation of the Delta.

For decades, government agencies, stakeholders, scientists, and planners have tried to develop a common vision for the future Delta, only to be stymied by environmental and economic politics. A new paradigm developed by diverse interests, however, proposes six regional conservation strategies to be achieved through collaborative, phased projects tailored to the needs of each sub-region, with a priority on improving public lands first. Proponents of the new framework say long-term conservation of the Delta is not a choice but an urgent necessity that will benefit people as much as natural communities. “It is a call to work together to improve ecosystem function, bolster ecosystem services for people, support Delta wildlife, and grow our science capacity so we can keep learning conservation lessons,” says...
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26
Mar

Back to the Bones of the Delta

Anyone who’s been around debates about the Delta’s highest and best
 uses for decades has seen a long train of plans touting this or that kind of restoration to save salmon, smelt, mice, birds and other endangereds. What’s different about the San Francisco Estuary Institute’s recently released Delta Renewed guide is that it finally puts all that’s been learned together in 
one place in a mere 100 pages.
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10
Sep

Scaled-Down Plans to “Fix and Restore”

Surprising many observers, Governor Jerry Brown announced late in April that the Bay Delta Conservation Program, which had embraced the new water conveyance popularly known as the Twin Tunnels and a broad program for restoring the complex and heavily impacted Delta environment, was being split into two new entities: Cal WaterFix and Cal EcoRestore. On the restoration side, he announced a more modest goal of 30,000 acres, down from the original 100,000.
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16
Dec

Offers They Can Refuse

The numbers are daunting: 8,000 acres to be restored to fish-friendly tidal habitat in order to comply with federal wildlife agencies’ Biological Opinions; another 65,000 if and when the Bay-Delta Conservation Plan is implemented; more still if you add in mitigation for levee operations. Where will that acreage come from? State agencies and other public entities already own some parcels suitable for restoration, but not nearly enough: the rest will need to be purchased from its current owners or covered by easements. (Eminent domain is not on the table; it’s not even clear if it could be invoked for habitat purposes.) And legal constraints make buying land in the Delta harder than you might think. Dennis McEwan of the Department...
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23
Sep

Defter Delta Restoration

An issue paper endorsed by the Delta Stewardship Council this August seeks to spark progress throughout the myriad stages of habitat restoration. As public and private interests gear up to help endangered fish and migrating birds by restoring habitats in six priority zones of the Delta and Suisun Marsh, this paper lays out tools and concepts for getting the most out of these investments and learning from our mistakes. The paper details steps for achieving effective restoration, reviews barriers such as conflicts with existing land uses and the complexity of permitting processes, and recommends strategies for addressing these challenges.
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