California Bay-Delta — Wetland restoration barriers are often physical and institutional at the same time
WHAT THE EVIDENCE SAYS
Interviews with 59 project developers, managers, funders and policymakers across nine restoration projects found barriers split between site-level and higher-scale causes. Common problems included conflicts among regulatory authorities, physical constraints from the built environment, and insufficient funding for post-project stewardship.
WHY IT MATTERS / OUR READ
Nature-based infrastructure is not implemented on an empty map. Easements, utilities, elevation, salinity, permitting authority and long-term maintenance finance are part of the ecological feasibility of a restoration project, not administrative details outside the system.
CAVEATS / UNCERTAINTY
The study documents reported barriers among projects that advanced far enough to study; it lacks a counterfactual sample of projects that failed or never began and is subject to interview recall bias.
SOURCE
Environmental Management · Original evidence
View original evidence ↗
Interviews across nine projects show that permitting, utilities, site constraints and long-term stewardship funding can be as decisive as ecological design.
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