林业应用稀土的技术与效果  

TECHNIQUSE AND EFFECTS OF APPLING THE RARE-EARTH TO FORESTY

作　　者：连友钦[1] 郑槐明[1] 邓明全[1] 贾慧君[1] 陈蓬[1] 

机构地区：[1]中国林业科学研究院林业研究所

出　　处：《林业科学》1995年第5期453-459,共7页Scientia Silvae Sinicae

摘　　要：稀土在提高林木种子发芽率，促进杉木（Ｃｕｎｎｉｎｇｈａｍｉａｌａｎｃｅｏｌａｔａ（Ｌａｍｂ．）Ｈｏｏｋ．）、木荷（ＳｃｈｉｍａｓｕｎｅｒｂａＧａｒｄｎ．ｅｔＣｈａｍｐ）、板栗（ＣａｓｔａｎｅａｍｏｌｌｉｓｓｉｍａＢｌｕｍｅ）、泡桐（Ｐａｕｌｏｗｎｉａｓｐ）、杨树（Ｐｏｐｕｌｕｓｓｐ）等的苗期生长并提高苗木质量，提高湿地松（ＰｉｎｕｓｅｌｌｉｏｔｔｉｉＥｎｇｅｌｍ）、杉木种子园的种子产量和质量，提高核桃（ＪｕｇｌａｎｓｒｅｇｉａＬ．）、枣（ＺｉｚｙｐｈｕｓｊｕｊｕｂａＭｉｌｌ）、板栗、苹果（ＭａｌｕｓｐｕｍｉｌａＭｉｌｌ）、梨（ＰｙｒｕｓｂｒｅｔｓｃｈｎｅｉｄｅｒｉＲｅｈｄ）、山楂（ＣｒａｔａｅｇｕｓｐｉｎｕｓｔｉｆｉｄａＢｇｅ）、柿（ＤｉｏｓｐｙｒｏｓｋａｋｉＬ．）、杏（ＰｒｕｎｕｓａｒｍｅｎｉａｃａＬ．）等果树的座果率和产量并改善果实品质等方面有明显效果。同时，稀土对林木苗期和经济林木花果期的生理有促进作用。稀土能促进林木叶绿素形成，提高光合作用强度，促进根系对矿质元素的吸收，增加干物质积累；稀土还影响种实中有机酸、蛋白质、脂肪、糖、Ｖｃ等的含量．稀土林用技术已用于生产实践。Since 1982, the experiments of the rare-earth application to forestry have been carried out with both pot-planted seedlings and field trees. The results proved that the rare-earth can increase the seed germination rate,and growth of forest trees at nursery stock stage, and improve the quality of nursery stockes, e. g. Cunninghamia lanceolata (Lamb. ) Hook,Schima superba Gardn, et champ, Castanea mollissima Blume, Paulownia sp., Populus sp.etc. It can also raise the seed yields and quality of Pinus elliottii Engelm and Cunninghamia lanceolata in a seed orchard. And there are obvious effects on the fruit set percentage and yields, as well as improving the quality of fruits for some dry or fresh fruit tree species, such as Juglant regia L.,Ziayphus jujuba Mill, Castanea mollissima, Mains pumila Mill, Pyrus bretschmeideri Rehd, Crataegus pinnstifida Bge, Diospyros kaki L., Prunus armeniaca L., and so on. The studies on physiological effects of it in forest tree species during its nursery stock stage, and in economic forest tree species during its flowering and fruiting period indicate that it can promot chlorophyll formation and mineral element absorption by roots, increase photosynthetic intensity and dry matter accumulation, as well influence the contents of some organic acids, protein, fat, sugar, and Vc etc in the fruitsand seeds. Now the technique for the rare-earth application to forestry have been used in production practice as a result of studing it for manyyears.

关 键 词：稀土 苗木 经济林木 质量 生理作用 

分 类 号：S718.43[农业科学—林学]