摘要
速生红树植物无瓣海桑能够成功向北引种到粤东沿海和福建九龙江口 ,其生长表现良好 ,在未经补植的情况下成活率基本上在 70 %以上。与次生种源地海南省琼山县相比 ,分别向北推移了约 3.5个和4 .5个纬度带 ,越过 3～ 4个冬季后能够正常生长发育。在引种地生长迅速 ,显著超过同龄的乡土树种秋茄和桐花树的生长量 ,树高年均生长量为 1.6 5～ 2 .14m ,地径年均生长量为 3.0 3～ 5 .14cm ,目前造林 2年以上的无瓣海桑已成林和郁闭 ,开始发挥红树林保护海岸河堤的生态功能。
Mangrove species Sonneratia apetala Buch-Ham could be introduced successfully to the eastern Guangdong Province and Jiulong River mouth of Fujian Province. Without replantation, the survival rate of this mangrove species was generally more than 70 percents. Compared with the secondary provenence Qongshan County of Hainan Province, Sonneratia apetala Buch-Ham has been pushed towards north latitude 3.5° and 4.5 °, and grew and develop very well after 3～4 winters. It grew quickly and greatly exceeded the indigenous species Kandelia candel (L.) Druce and Aegiceras corniculatum (L.) Blanco with the same age in the introduction region, with a annual growth amount of height of 1.65～2.14 m and growth amount of base diameter of 3.03～5.14 cm. Up to now, forest of Sonneratia apetala Buch-Ham has been established and closed, and begun taking ecological effects of coastal protection.
出处
《广东林业科技》
2003年第2期9-12,共4页
Forestry Science and Technology of Guangdong Province
基金
国家"九五"攻关专题资助项目 ( 96-0 0 7-0 3 -0 4)
广东省林业局生态公益林中心支持项目
