论文部分内容阅读
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。
Rare earth can increase the seed germination rate and promote the seedling growth of Cunninghamia lanceolata (Lamb.) Hook, Schima superba gardn.etChamp, Castaneamollissima Blume, Paulowniasp, Populussp etc. Seedling quality, improving the seed yield and quality of Pinus thunbergii pine, Pinus thunbergii pine seed orchards, raising the seed yield and quality of Juglans regia L., Zizyphus jujuba Mill, chestnut, Malus pumila Mill, Pyrus bretschneideri Rehd, Crataegus pinustifida gege, Diospyroskak L.), apricot (PrunusarmeniacaL.) And other fruit set and fruit production and improve fruit quality and other aspects have a significant effect. At the same time, rare earths can promote the physiology of forest seedlings and economic fruit trees. Rare earth can promote chlorophyll formation, improve photosynthesis intensity, promote root absorption of mineral elements and increase dry matter accumulation; rare earth also affect the content of organic acids, protein, fat, sugar, Vc and other content. Rare earth forest technology has been used in production practice.