海南浆纸林林下植物物种多样性研究

Research on Species Diversity under Pulp-paper Forest in Hainan

以海南浆纸林为研究对象,研究不同浆纸林类型、不同管理方式等对浆纸林林下植物物种多样性的影响。结果表明,不同密度的桉树浆纸林,虽然其林下植物个体数与物种多样性指数存在差异,但没有明显的规律性。农户经营模式下的林下草本个体数表现出少于公司经营的趋势,但物种丰富度却表现出高于公司经营的趋势。与其他人工经济林、荒坡植被和次生林相比,海南浆纸林没有表现出明显抑制林下物种生长与分布的现象,相反,在大多数对比调查中,表现出浆纸林林下具有更多的物种多样性和个体数。

With pulp-paper forest in Hainan as study object,the effects of different pulp-paper forest types,different management ways on species diversity under the forest were investigated.The results showed that no obvious regularity was found in the species diversity index under different pulp-paper forest＇s density,although they were different.There were lower individuals number in the pulp-paper forest managed by peasants than that by companies,but the pattern of species diversity was opposite.Compared with other artificial economic forests,waste slope shrub forests and secondary forests,there were no obvious pattern that the pulp-paper forest in Hainan could inhibit other species,in contrary,there were more species and individual numbers under the pulp-paper forest.