用微信扫码二维码

分享至好友和朋友圈

WE ARE COMMITTED TO REPORTING THE LATEST FORESTRY ACADEMIC ACHIEVEMENTS

龙溪-虹口国家级自然保护区地震灾后植被自然演替初步研究

A Preliminary Research on the After-earthquake Succession of the Vegetation in Longxi-Hongkou National Nature Reserve

  • 摘要: 选择4种不同基质类型设置20 m×20 m的固定样方,对保护区地震滑体内的植被自然演替进行定期监测,每年春秋季节各监测1次。通过5 a监测数据分析得出:(1)有3种基质类型的滑坡体,植被自然恢复速度比较快,盖度达到80%以上,而另一种基质类型的滑坡体,植被自然恢复速度比较慢,盖度只有10%左右;(2)进入滑坡体的先锋灌木物种是:大叶醉鱼草、川莓、悬钩子、木姜子、绣球等;而进入滑坡体的先锋草本物种是:蕨、凤仙花、香青、冷水花等;⑶样方内自然恢复的优势物种在3 a后发生了演替变化,前3 a是大叶醉鱼草,近2年来被川莓和悬钩子取而代之。

     

    Abstract: The succession of vegetation in the landslide was regularly monitored in spring and autumn per year by aclopting the method of 20 m×20 m quadrat and four types of matrix. The results which were collected in five years showed that (1) in three types of landslides, plants recovered faster with 80% coverage or higher; but in the other, its plant recovered slowly with about 10% coverage. (2) The pioneer shrub species in landslides were Buddleja davidii,Rubus setchuenensis,Rubus,Litsea,Hydrangea and so on while the herbaceous ones were fern, Impatiens, Anaphalis, Pilea, etc.. (3) The recovered dominant species in the quadrat naturally changed after the first three years,from Buddleja davidii to Rubus setchuenensis and Rubus.

     

/

返回文章
返回