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　　風??(feng)媒??(mei)花?(hua)粉??(fen)指??(zhi)借??(jie)助??(zhu)風??(feng)力??(li)傳??(chuan)播??(bo)授??(shou)粉??(fen)的?(de)花??(hua)粉?(fen)??，一??(yi)般??(ban)花?(hua)粉??(fen)粒??(li)小??(xiao)、質(zhì)??(zhi)輕??(qing)、量??(liang)多??(duo)??，如??(ru)柏??(bai)樹??(shu)、楊??(yang)樹??(shu)、柳?(liu)樹??(shu)、樺??(hua)樹??(shu)、梧??(wu)桐??(tong)等??(deng)；它??(ta)的??(de)特??(te)點?(dian)是?(shi)花??(hua)型??(xing)較??(jiao)小??(xiao)、色??(se)淺??(qian)、無?(wu)香?(xiang)味??(wei)??，數(shù)??(shu)量??(liang)多??(duo)??，花??(hua)粉?(fen)傳??(chuan)播??(bo)面??(mian)積??(ji)很??(hen)廣??(guang)、在??(zai)空??(kong)氣??(qi)中??(zhong)停?(ting)留??(liu)時??(shi)間??(jian)長?(chang)??。??　　第??(di)一??(yi)個??(ge)高??(gao)發(fā)??(fa)期??(qi)是??(shi)春??(chun)季??(ji)??，以??(yi)喬?(qiao)木??(mu)開??(kai)花??(hua)為??(wei)主??(zhu)??，包?(bao)括??(kuo)松??(song)科??(ke)、柏??(bai)科??(ke)、楊??(yang)屬??(shu)、桑??(sang)科??(ke)等??(deng)等?(deng)；IVORYNBVZWqibao666888　　feng ??(feng)mei ??(mei)hua ?(hua)fen ??(fen)zhi ??(zhi)jie ??(jie)zhu ??(zhu)feng ??(feng)li ??(li)chuan ??(chuan)bo ??(bo)shou ??(shou)fen ??(fen)de ?(de)hua ??(hua)fen ?(fen)??，yi ??(yi)ban ??(ban)hua ?(hua)fen ??(fen)li ??(li)xiao ??(xiao)、zhi ??(zhi)qing ??(qing)、liang ??(liang)duo ??(duo)??，ru ??(ru)bai ??(bai)shu ??(shu)、yang ??(yang)shu ??(shu)、liu ?(liu)shu ??(shu)、hua ??(hua)shu ??(shu)、wu ??(wu)tong ??(tong)deng ??(deng)；ta ??(ta)de ??(de)te ??(te)dian ?(dian)shi ?(shi)hua ??(hua)xing ??(xing)jiao ??(jiao)xiao ??(xiao)、se ??(se)qian ??(qian)、wu ?(wu)xiang ?(xiang)wei ??(wei)??，shu ??(shu)liang ??(liang)duo ??(duo)??，hua ??(hua)fen ?(fen)chuan ??(chuan)bo ??(bo)mian ??(mian)ji ??(ji)hen ??(hen)guang ??(guang)、zai ??(zai)kong ??(kong)qi ??(qi)zhong ??(zhong)ting ?(ting)liu ??(liu)shi ??(shi)jian ??(jian)chang ?(chang)??。??　　di ??(di)yi ??(yi)ge ??(ge)gao ??(gao)fa ??(fa)qi ??(qi)shi ??(shi)chun ??(chun)ji ??(ji)??，yi ??(yi)qiao ?(qiao)mu ??(mu)kai ??(kai)hua ??(hua)wei ??(wei)zhu ??(zhu)??，bao ?(bao)kuo ??(kuo)song ??(song)ke ??(ke)、bai ??(bai)ke ??(ke)、yang ??(yang)shu ??(shu)、sang ??(sang)ke ??(ke)deng ??(deng)deng ?(deng)；