古(gu)(gu)樹(shu)(shu)(shu)(shu)名(ming)(ming)(ming)木(mu)(mu)，據我國有(you)(you)關(guan)部門規定，一般樹(shu)(shu)(shu)(shu)齡在百(bai)年以(yi)上的(de)大(da)樹(shu)(shu)(shu)(shu)即(ji)為(wei)(wei)(wei)古(gu)(gu)樹(shu)(shu)(shu)(shu)；而那些(xie)樹(shu)(shu)(shu)(shu)種(zhong)稀有(you)(you)、名(ming)(ming)(ming)貴或(huo)具有(you)(you)歷(li)史價值(zhi)、紀念意義的(de)樹(shu)(shu)(shu)(shu)木(mu)(mu)則可稱為(wei)(wei)(wei)名(ming)(ming)(ming)木(mu)(mu)。古(gu)(gu)樹(shu)(shu)(shu)(shu)名(ming)(ming)(ming)木(mu)(mu)的(de)分(fen)級：古(gu)(gu)樹(shu)(shu)(shu)(shu)分(fen)為(wei)(wei)(wei)國家(jia)一、二、三級。 古(gu)(gu)樹(shu)(shu)(shu)(shu)名(ming)(ming)(ming)木(mu)(mu)是林木(mu)(mu)資源中的(de)瑰寶，是自然(ran)(ran)界的(de)璀璨明珠。古(gu)(gu)樹(shu)(shu)(shu)(shu)名(ming)(ming)(ming)木(mu)(mu)被人(ren)們譽為(wei)(wei)(wei)活化石(shi)，是適(shi)應生(sheng)態環(huan)境和前(qian)人(ren)保護(hu)自然(ran)(ran)的(de)結果。隨著全(quan)社會(hui)對生(sheng)態環(huan)境保護(hu)意識的(de)提高，古(gu)(gu)樹(shu)(shu)(shu)(shu)名(ming)(ming)(ming)木(mu)(mu)以(yi)其獨具的(de)科研、科普、歷(li)史、人(ren)文和旅游價值(zhi)而日益(yi)為(wei)(wei)(wei)人(ren)們所重視，并成為(wei)(wei)(wei)一個(ge)地方的(de)綠色名(ming)(ming)(ming)片。但由于各種(zhong)原因，古(gu)(gu)樹(shu)(shu)(shu)(shu)名(ming)(ming)(ming)木(mu)(mu)衰老死(si)亡的(de)現象時常發生(sheng)。要(yao)使(shi)古(gu)(gu)樹(shu)(shu)(shu)(shu)名(ming)(ming)(ming)木(mu)(mu)復(fu)壯(zhuang)，必須分(fen)析其衰老的(de)機理對癥下藥