Abstract:
A large amount of salt marshes in China now are being damaged, degraded, or even disappeared due to the combined effects of human disturbances and natural erosion.During the last 20 years, in some developed centuries such as the United States, a branch of large-scale salt marsh restoration projects have been implemented, which provide opportunities for testing restoration theories.As a result, series of basic views and mainstream technologies have been developed, and such progresses are valuable for the future implementation of salt marsh restoration in China.This article discussed some basic views towards salt marsh restoration, including the mechanisms for the damage and degradation, the goals of the restoration, and the driving forces.Also, some mainstream technologies including sediment amendment, hydraulic remediation, and transplantation were summarized.Moreover, three representative projects which located at Delaware Bay, Jamaica Bay, and Schelde Estuary were taken as examples to illustrate the progresses in restoration implementation.Based on the progresses in Europe and America, and also considering the local needs, we further proposed suggestions for implementing salt marsh restoration in China.