Study on the interaction between plant diversity and AM fungi in subtropical grassland ecosystem
Study on the interaction between plant diversity and AM fungi in subtropical grassland ecosystem
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发表时间：
2005
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通讯作者：
Zhu Honghui
中科院分区：
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作者：
Zhu Honghui
为了揭示植物多样性与AM真菌的关系，对三个亚热带草原生态系统的植被和AM真菌的多样性进行了研究。结果表明，3个草地AM真菌多样性差异不显着，但植物多样性差异显着，Shannon-Weiner多样性指数分别为0.460、0.614和1.703。三个草地的孢子密度分别为4.7、2.1和5.2 g~(-1)。这表明AM真菌孢子密度较高的草原植物多样性较高。植物多样性与孢子密度的系数为0.658(P0.01),植物物种丰富度与孢子密度的系数为0.543(P0.05)。目前研究表明，孢子密度是影响植物多样性的重要AM真菌因素之一
In order to reveal the relationship between plant diversity and AM fungi, the diversities of vegetation and AM fungi in three subtropical grassland ecosystems were investigated. Results indicated that there was no significant difference between AM fungi diversities of three grasslands, but significant difference was observed between plant diversities, with the Shannon-Weiner diversity indexes of 0.460, 0.614 and 1.703, respectively. The spore densities of three grasslands were 4.7, 2.1 and 5.2 g~(-1), respectively. This indicated that plant diversity was higher in the grassland with higher AM fungal spore density. The coefficient between plant diversity and spore density was 0.658(P0.01), and that between plant species richness and spore density was 0.543(P0.05). The present research showed that spore density is one important AM fungal factor influencing plant diversity