摘要 : The growth of various halophytes in coastal saline soils was compared and the effect of halophytes on changes in chemical properties of saline soils and rehabilitation of coastal saline soils was investigated at the Sirlndhorn Int... 展开 The growth of various halophytes in coastal saline soils was compared and the effect of halophytes on changes in chemical properties of saline soils and rehabilitation of coastal saline soils was investigated at the Sirlndhorn International Environmental Park, Cha-am district, Petchaburi province between April 2010 and September 2011. The experimental design was a randomized complete block design with 4 replications. The halophyte species were: i) Dixie grass {Sporotxilus virginicus coarse type), ii)Smyrna grass {Sporotmlus wginicus smooth type), Hi) Seabrook grass {DIstichlis spicata), iv) Georgia grass (Spartina patens), and 5) natural grasses. It was found that Dixie grass showed the highest survival rate, followed by Smyrna grass, Georgia grassand Seabrook grass. Seabrook grass had the highest fresh and dry weights of 19,796.25 and 12,178.75 kg ha~(-1), respectively, followed by Georgia grass, Dixie grass and Smyrna grass. Seabrook grass accumulated larger amounts of sodium (Na) than Georgiagrass. Dixie grass and Smyrna grass. The study of the effect of halophytes on soil chemical changes found that in general, soil organic matter, as well as phosphorus and potassium levels, increased, while soil electrical conductivity decreased. 收起