Study on grafting affinity of chestnut varieties
li dangxun1; li changzhu1; li peiwang1; yu jianjun2(1.hunan forestry academy; changsha 410004; china; 2.forestry bureau of pingjiang county; yueyang 410400; china)
Study on the relationship between the growth volume and beach height of Poplar
zhang dazhi1; wu lixun2; wu min2; tang yuxi2; lin jianxin3; xu shifeng2 (1.forestry bureau of junshan district; yueyang 414005; china; 2.hunan forestry academy; changsha 410004; china; 3.forestry bureau of yuanjiang city; yiyang 413100; china)