怀化地区是南方主要用材林树种—杉木的中心产区,素有培育林木良种的优越自然条件和丰富的种质资源。早在60年代中期,我区就开展了杉木良种选育工作,在驰名全国的广木之乡会同广坪和州木之乡靖州大堡子进行了杉木优树选择工作,荟萃杉木精英,于1966年以来,在排牙山林场、广坪相继建起了怀化地区第一、二个杉木种子园,也是全国最早的杉木种子,园之一。全区先后选出杉木优树575株(靖州323株),营建了嫁接种子园2887亩(靖州1337 Huaihua area is the main timber plantation species in southern China - the center of fir production area, known for cultivating superior natural conditions of forest seeds and rich germplasm resources. As early as the mid-1960s, our district has carried out the selection and breeding of Chinese fir seedlings in the well-known nationwide Guangmuzhugongjiangyuan and state wood town Jingzhou big fort son selection fir tree, a blend of Chinese fir elite, at Since 1966, at the Yayingshan Forest Farm and Guangping, the first and second cedar seed orchards in Huaihua have been set up, one of the earliest fir seeds and gardens in the country. The region has selected 575 Cunninghamia lanceolata (Jingzhou 323), built a 2887 acres of grafted seed orchard (Jingzhou 1337