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California Reclaims Land: Subsidence Solved with Wetlands & Rice
2 Oct
Summary
- 2,800 acres in Delta to become wetlands and rice cultivation.
- Project tackles land subsidence and reduces greenhouse gas emissions.
- Cost is $28 million, with $20.9 million grant from Delta Conservancy.
California is embarking on a substantial restoration project on Webb Tract, a 2,800-acre island in the Sacramento-San Joaquin Delta. This initiative will transform farmland into a landscape combining wetlands, upland habitat, and rice cultivation. The primary goal is to address severe land subsidence, caused by drained peat soils, and to mitigate greenhouse gas emissions.
The project focuses on reintroducing water to the landscape, a key strategy to slow the decomposition of peat soils and prevent further sinking. Rice farming, which requires wet conditions, is integrated to support this goal while maintaining agricultural production. This approach is also seen as an opportunity to test how wetland restoration and rice cultivation can sequester carbon.
Beyond subsidence control, the restoration aims to create essential habitat for migratory birds and other Delta species. The multi-benefit approach blends environmental restoration with continued agricultural use. The project, costing approximately $28 million, is largely funded by a $20.9 million grant from the Sacramento-San Joaquin Delta Conservancy, with the Metropolitan Water District of Southern California covering the remainder.
Groundbreaking and initial planting are scheduled for October 7, 2026. This project signifies a shift towards managing Delta islands for multiple ecological and agricultural purposes, fostering climate resilience and biodiversity.
