各市林(果)学会,省林学会各工作、专业委员会(研究会),团体会员单位,各学会组：根据“河北省林学会关于召开第九次会员代表大会暨青年学术交流会的预备通知”(冀林会字[2005]3号)要求,河北省林学会组织开展了第三届林业青年科技工作者学术交流会论文征集活动。省林 Each city forestry (fruit) Society, provincial forestry association work, professional committee (seminar), group member units, each learning group: According to "Hebei Forestry Association on the ninth member congress cum preparatory notice of the youth academic exchange (Ji Lin Hui Zi [2005] No. 3), Hebei Forestry Association organized the third session of forestry science and technology workers academic exchange conference papers collection activities. Provincial Forest