Abstract: Sheyang tree farm was established in 1690.After 20 and more years'exploitation,the ecologic,social and economic efficiencies got from it are higher than those got from the farms exploited in the same year.It is suggested that the exploitation of seabeaches in Jiangsu province should give priority to the development of forestry and stren gthen the establishment of natural protection regions along seabeaches.

Key words: wheat, irrigation treatment, water soluble carbohydrate, grain yield