SHI Lianjun,XU Jian,LIN Yebin,et al.Analysis on Species Composition and Species Diversity of Plant Community Recovery in Xiejiadian[J].Research of Soil and Water Conservation,2016,23(02):83-88.
谢家店植物群落恢复中种类组成及物种多样性分析
- Title:
- Analysis on Species Composition and Species Diversity of Plant Community Recovery in Xiejiadian
- Keywords:
- vegetation restoration; species composition; species diversity; correlation; Xiejiadian plant communities
- 分类号:
- S718;Q948
- 摘要:
- 于2014年采用样方法对地震重灾区谢家店的植被自然恢复情况和生境条件（包括海拔高度、土壤温度、湿度和盐度）进行调查，分析了各样地物种多样性之间的相关性及不同恢复年限植被恢复的效果，通过研究植被的动态恢复效果及其立地条件的影响，把握地震灾区植物的演替规律，以期为当地制定植被恢复的方案提供参考和借鉴。结果表明：（1）已统计到植物46科66属84种，桤木（Alnus cremastogyne）为乔木层优势种（重要值是0.29），同时也是群落的建群种，群落类型为桤木+灰白毛莓+木贼（A. Cremastogyne+Rubus Tephrodes+Equisetum hyemale）。（2）2014年Shannon-Weiner指数（H’）、Margalef指数（Ma）、Pielou指数（E）和Simpson指数（D）分别为2.06，2.942，0.73，0.189，相比2009年，物种丰富度上升，均匀度下降。（3）在不同生活型中Shannon-Weiner指数、Pielou指数和Margalef指数都是草本层 > 乔木层 > 灌木层；Simpson指数为灌木层 > 草木层 > 乔本层，灌木层物种数量分布不均衡。（4）土壤温度、湿度、盐度影响植物的生长和种类组成，进而影响物种的多样性指数，近几年植物物种和数量（物种的数量）都呈明显增大的趋势，但物种在样地中的分配并不均匀。
- Abstract:
- Natural recovery of vegetation and habitat conditions (including altitude, soil temperature, humidity and salinity) were investigated by sample method in Xiejiadian of earthquake disaster areas in 2014, and we analyzed the correlation of species diversity in each sample and different effects of vegetation restoration of different recovery duration. We can grasp the plant succession pattern of earthquake-affected areas through the study of dynamic vegetation recovery effect and the influence of site conditions, so as to provide reference for local vegetation recovery plan formulation. The results showed that: (1) there were 84 species of plants in this area, tthese plants belong to 66 genera and 46 family, according to the important value, Alnuscremastogyne is the dominant species (0.29), but also is the constructive species in communities, the entire type of community is A. cremastogyne+Rubustephrodes+Equisetum hyemale; (2) in 2014, Shannon-Weiner index (H’), Margalef index (Ma), Pielou index (E) and Simpson index (D) were 2.06, 2.942, 0.73 and 0.189, respectively, the species richness index was rising, and species evenness index was falling compared with 2009; (3) Shannon-Weiner index, Pielou index and Margalef index in different life forms were the biggest in the herb layer, smaller in tree layer, and the smallest in shrub layer; Simpson index is the biggest in shrub layer, second in herb layer, and the smallest in tree layer, uneven distribution of species in shrub lager; (4) plant growth and species composition are affected by soil temperature, moisture and salinity, which influences the species diversity index, the plant species number is increasing dramatically in the recent years, but the species distribution is not uniform in the plot.
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备注/Memo
收稿日期:2015-07-07;改回日期:2015-07-30。
基金项目:四川省科技厅项目（2012JY0121）；西华师范大学教改项目（JGXMYB1348）
作者简介:时连俊(1990-),女,山东省济南人,硕士研究生,主要从事环境与生物地理研究。E-mail:18281780593@163.com
通讯作者:刘守江(1974-),男,四川泸州人,硕士,副教授,主要从事环境生态与生物多样性研究。E-mail:gtjxpg@163.com