无瓣海桑人工林下乡土树种自然更新的初步研究  

Natural Regeneration of Indigenous Mangroves in Sonneratia apetala Buch.-Ham. Plantations

作　　者：王仁恩[1,2] 陈玉军[2] 黄勃[1] 杨文杰[1] 张钰[1] 李诗川 梁振辉 李隆飞 

机构地区：[1]海南大学海洋学院,海南海口570228 [2]中国林业科学研究院热带林业研究所,广东广州510520 [3]海南东寨港国家级自然保护区管理处,海南海口571129

出　　处：《热带生物学报》2011年第4期342-348,共7页Journal of Tropical Biology

基　　金："十一五"国家科技支撑计划专题(2009BADB2B0404);中央级公益性科研院所基本科研业务费专项资金项目(6309)

摘　　要：为了探明无瓣海桑(Sonneratia apetala Buch.-Ham.)人工林下乡土树种自然更新的机理及无瓣海桑对其影响,用野外样方调查法,对海南东寨港地区的14年生人工无瓣海桑林试验样地进行了调查分析。结果表明:14年生人工无瓣海桑林处于自然更新的初期;种源距、滩面高度、林间距、林下呼吸根数目均与林下乡土树种的自然更新存在相关关系,灌木模型为:Y1=0.998X1+0.324X2+8.54X3-0.122X1X3-75.953;幼苗模型为:Y2=151.934-0.565X1-1.682X4;无瓣海桑呈林圈和林间带种植能够加快乡土树种自然更新的速度。To investigate the mechanism of the natural regeneration of indigenous mangroves in Sonneratia apetala Buch.-Ham plantations and the effects of S.apetala. The method of survey plots was performed to analysis 14 years of S.apetala plantations in Dongzhai Harbor in November 2010. The results indicated that the community of S.apetala plantations is in the early stages of natural regeneration; there were correlation between provenance distance, elevation, forest spacing, the number of pneumatophores and natural regeneration of indigenous mangroves which were as followed： Shrubs：Y1=0.998X1＋0.324X2＋8.54X3-0.122X1X3-75.953;Seedlings：Y2=151.934-0.565X1-1.682X4; the natural regeneration was accelerated by the S.apetala forest planted with circulation and strips.

关 键 词：无瓣海桑 乡土树种 自然更新 物种多样性 

分 类 号：S718.54[农业科学—林学] Q948.12[生物学—植物学]