生物多样性 ›› 2014, Vol. 22 ›› Issue (5): 658-666.DOI: 10.3724/SP.J.1003.2014.14080

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海南橡胶林植物多样性特征

兰国玉1,2,*(), 吴志祥1,2, 谢贵水1,2   

  1. 1 中国热带农业科学院橡胶研究所, 海南儋州 571737
    2 农业部儋州热带作物科学观测实验站, 海南儋州 571737);① 金恒镳 (2008) 台湾人工林的适应性管理. 生态系统研究与管理简报, 19(5), 1-12.
  • 收稿日期:2014-04-14 接受日期:2014-08-29 出版日期:2014-09-20 发布日期:2014-10-09
  • 通讯作者: 兰国玉
  • 基金资助:
    中国热带农业科学院橡胶研究所基本科研业务费项目(160022013013);海南省自然科学基金(313060)

Characteristics of plant species diversity of rubber plantation in Hainan Island

Guoyu Lan1,2,*(), Zhixiang Wu1,2, Guishui Xie1,2   

  1. 1 Rubber Research Institute Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737
    2 Danzhou Investigation & Experiment Station of Tropical Crops, Ministry of Agriculture of China, Danzhou, Hainan 571737
  • Received:2014-04-14 Accepted:2014-08-29 Online:2014-09-20 Published:2014-10-09
  • Contact: Lan Guoyu

摘要:

为探讨人工林物种多样性维持机制及人为干扰后人工林群落的多样性恢复机制, 作者依据自然林的核心理论建立了一个1 ha的橡胶(Hevea brasiliensis)林固定样地, 通过研究近自然管理后样地内植物物种组成与分布来探讨近自然管理后橡胶林生物多样性的特征。结果表明: 近自然管理后橡胶林群落物种多样性较高, 1 ha样地内共有植物69科155属183种。在面积为4,000 m2、3,000 m2和2,000 m2时分别包含了样地内大约90%的种、属和科; 逻辑斯蒂模型拟合拟合种-面积曲线效果较好(R2=0.997), 证明了1 ha取样尺度可以满足橡胶林群落物种多样性研究的需要。多度-面积曲线和丰富度-面积曲线与随机分布模型有明显的差异, 表明橡胶林群落内个体数及物种分布呈非随机性。(4)对数级数模型和对数正态模型拟合橡胶林群落的种-多度分布都不理想, 相比而言后者拟合效果稍好。

关键词: 近自然管理, 物种多样性, 种-面积曲线, 种-多度分布

Abstract

To explore diversity maintaining mechanism and restoration after disturbance of the plantation, we established a 1-ha dynamic rubber plantation plot and managed it in a close to nature way according to the core theory of close to nature forest. Based on field survey data, plant species composition and distribution in the rubber plantation was analyzed. A total of 183 species belonging to 155 genera and 69 families were recorded in the plot. In the area of ??4,000 m2, 3,000 m2 and 2,000 m2, the plot contains about 90% of species, genus and family respectively. Logistic model fitted species-area is very good with R2 0.997, which indicates that 1-ha plot is large enough for monitoring of species diversity of rubber plantation. The distribution pattern of abundance and richness in the plot are very different from those constructed from random placement model, which indicates that the unevenness distribution of abundance and richness are not caused by the random distribution. The species-abundance distribution of the plot could not be well fitted by using the lognormal model and log serial model. In comparison, the lognormal model fits it better than log serial model.

Key words: close to natural management, species diversity, species-area curve, speices-abundance distribution