几种红树林植物在浙南沿海北移引种试验

为筛选在温州地区可成功引种的红树林植物,调查了不同种源红树林植物的年生长情况。结果表明：秋茄、无瓣海桑、桐花、海漆可安全越冬,保存率分别为秋茄（77%）〉桐花（73%）〉海漆（70%）〉无瓣海桑（15%）,而拉关木、木榄、尖瓣海莲、红海榄、老鼠簕、白骨壤均死亡。在0℃低温下,相对电导率较夏季增幅大小的顺序为：拉关木〉无瓣海桑〉桐花〉1年生秋茄〉8年生秋茄;SOD活性增幅最大的是桐花,比夏季增加了105%,秋茄、拉关木SOD活性基本没有变化;脯氨酸含量拉关木增幅最大,冬季比夏季增加了2 854%,而无瓣海桑和8年生秋茄脯氨酸含量则变化很小。综合分析,无瓣海棠、桐花、海漆和秋茄基本上可在浙南地区安全过冬,而其余红树林植物是否适宜在浙南栽植还有待进一步研究。

Preliminary Report on North-ward Introduction Experiment of Several Mangrove Plants Along the Southern Coast of Zhejiang Province

To screen out the introduced mangrove species adaptive to the natural conditions in Wenzhou area,different provenances of mangrove species were experimented with and the annual growth of the experiment plots was investigated.The results showed that survival rate of Kandelia candel,Sonneratia apetala,Aegiceras corniculatum and Excoecaria agallocha was 77%,73%,70% and 15% respectively,indicating the former 3 species could overwinter safely in the studied area.Whereas all the saplings of Laguncularia racemosa,...