红树林秋茄、桐花树、白骨壤混交生长效果研究

在海滩涂上栽培秋茄、桐花树、白骨壤，经过11a的经营管理，对红树林秋茄、桐花树、白骨壤林木的生长量进行调查分析。结果表明：红树林秋茄、桐花树、白骨壤混交林的林木生长，均比秋茄、桐花树、白骨壤纯林的林木生长效果好。混交林生长的林木树高、胸径、枝下高、树冠，分别比纯林林木生长的树木高大7．69％、7．5％、11．1l％，胸径粗2．17％、11．41％、6．67％，枝下高大2．01％、10．95％、8．57％，冠幅大5．00％、10．53％、13．50％。红树林秋茄、桐花树、白骨壤林木在浅潮位生长，比中潮位林木生长效果好，支柱根大、板状根系发达，吸收海水污染物强，能将盐类物质通过叶片光合作用排到植物体外，可去氮和磷等污染物，净化海边环境，防浪护堤，防止海岸侵蚀，起到保护生态环境作用。

Study on the Growth Effect of Mangrove Kandelia candel,Aegiceras corniculatum and A vicennia marina

The cultivation of Kandelia candel, Aegieeras corniculatum and Avieennia marina in the beach, through the management of lla,to investigate and analyze the volume growth,the Mangrove Kandelia eandel, Aegieeras eornieulatum, A vieennia marina trees. The results show that ： Kandelia eandel, Aegieeras eornieulatum, A vieennia marina, mixed forest tree growth, than Kandelia eandel, A egieeras eornieulatum, A vieennia marina,pure forest growth effect is good. Mixed forest trees tree height, DBH,height under branch,crown, re- spectively than those of pure forest grown trees tall and 7.69%,7.5%,11.11%,2.17%,11.41%,6.67% in diameter, branch 2.01%, tall 10.95%, 8.57%, 5%, 10.53%, 13.50% crown. Kandelia eandel, Aegieeras eomieulatum, Avieennia marina in the shallow water, tree growth,than the tide in forest growth effect is good,the prop roots,plate-like roots,absorb water pollutants can be strong,salts,row to plants in vitro through photo- synthesis, can go to nitrogen and phosphorus and other pollutants, purification of sea environment, anti wave support the waves,coastal erosion,to protect the ecological environment effect.