选用海涂区农田防护林的主要造林树种美洲黑杨、水杉、女贞、杉木、香樟、珊瑚树等１２个树种为试材，在上虞市海涂实验农场轻、中、重度盐渍化土壤中进行树种耐盐性试验。结果表明，各树种杭盐能力不同，美洲黑杨、水杉、女贞、珊瑚树、海桐等树种，耐盐临界值为 ０．２２％～０．２５％，具有较强抗盐能力。树种耐盐临界值，应以林木生长期测定为准。 Twelve tree species, Populus davidiana, Metasequoia, Prive, Cunninghamia lanceolata, Coral, were selected as the main afforestation species in the farmland shelterbelt in the coastal area of ​​Hailan City, and were selected in light, moderate and severe salinized soil of Shangyu TURP Salt tolerance test of tree species. The results showed that the salt tolerance ability of different species was different, and the critical value of salt tolerance was 0.22% ~ 0.25% for the Populus tomentosa, Metasequoia, Pinctada, Coral, and Pittosporum and had strong salt tolerance. Tree salt tolerance threshold should be determined by the determination of tree growth period.