The results indicated that:(1) the difference of species composition between the two forest types was significant; (2) in pine-sweet gum mixed forest,the pine population was a cohort aged from 25 to 30 years,which could be taken as a maturing population,while the sweet gum population could be viewed as an increasing population.

Methods: Pine needles of Pinus Massoniana Lamb was extracted with 50% alcohol.

Study on the degrease and color retaining technology of masson pine's wood blanks and squares;

Bio-modification of Rhus laccase on masson pine CTMP;

Response of masson pine seedling to chronic harm of SO_2;