| 摘要: |
| 以深圳市田头山市级自然保护区次生林和人工林的植物多样性特征与土壤养分特征及其相关性为研究目标。结果表明：田头山市级自然保护区次生林的土壤养分储量均显著高于人工林，但次生林植被的优势度指数（D）和均匀度指数（E）显著低于人工林。Pearson 相关性分析表明土壤有效磷含量与乔木层均匀度指数（E）显著负相关，与灌木层的多样性指数（H′）、优势度指数（S）、均匀度指数（E）均显著负相关，其余土壤养分与植物多样性指数无显著相关性。综上可知，次生林土壤肥力佳且植被优势种特征明显，植被灌木层植被受土壤有效磷含量的影响最大。 |
| 关键词: 深圳；森林经营 植物- 土壤反馈 |
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| 基金项目:深圳市自然保护区管理中心项目“市级自然保护区生态监测”；东江源水资源维持的森林植被优化关键技术研究（2021KJCX003） |
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| Correlation on Plant Diversity and Soil Nutrients in Secondary Forest and Artificial Forest in Tiantoushan Nature Reserve |
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Zhao Qin1, Gan Xianhua2, Liu Mengyun, Chen Xiaosheng, Yang Lang, Li Yifan, Huang Fangfang, Zhang Weiqiang
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1.Administration Center of Nature Reserves in Shenzhen;2.Guangdong Academy of Forestry
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| Abstract: |
| This paper analyzed the relationships between soil nutrients and plant diversity index in secondary forest and artificial forest in Tiantoushan nature reserve. The results showed the soil nutrients concentration in secondary forest were significantly higher than in artificial forest, but the Simpson dominance index and Pielou evenness index in secondary forest were significantly lower than in artificial forest. Moreover, the AP were negatively correlated with Pielou evenness index in tree layer, and negatively correlated with Shannon-Wiener diversity index, Simpson dominance index, and Pielou evenness index in shrub layer in Tiantoushan nature reserve. Thus, this paper indicated that the secondary forest in Tiantoushan nature reserve have richer soil nutrients and more obvious dominant species than in artificial forest, and the shrub layer was most affected by AP. |
| Key words: Shenzhen forest management plant-soil feedback |
