文家沟泥石流区植被调查

Investigation of Vegetation in Wenjiagou Debris Flow Area

为研究汶川地震次生泥石流堆积体的植被恢复对策,为泥石流及类似灾害地人工植被恢复提供参考,试验以四川省绵竹市清平镇文家沟泥石流堆积体的自然植被为调查对象,随机设置样方,以Simpson指数和Shannorr-Weiner指数调查样方内植被的盖度、均匀度、多样性、重要值,分析植被组成。通过实地调查发现,文家沟泥石流区自然恢复植被共42种,隶属23个科37属,主要包括菊科13种、禾本科5种、蔷薇科3种、苋科2种等。全部植物中,1、2年生草本植物15种、多年生草本植物15种、蕨类植物1种、乔木5种、灌木6种。

Secondary research of Wenchuan earthquake debris flow accumulation to vegetation restoration measures, provide a reference for the debris flow disasters and similar artificial vegetation recovery in Mianzhu City, Sichuan Province, the Qing Pingzhen Wenjiagou debris flow natural vegetation body as the research object, a random set of plots, with the Simpson index and Shannorr-Weiner index in the investigation plots the vegetation coverage, uniformity, diversity, the importance value of vegetation composition, analysis. Through field survey found, the Wenjiagou debris flow area of natural vegetation restoration of 42 species, belonging to 23 families and 37 genera, including 13 species of Compositae, 5 species of Gramineae, 3 species of Rosaeeae, 2 species of Amaranthaceae. All plants, 15 annual and biennial herbs, 15 species of perennial herbs, 1 species of pteridophytes, 5 species of trees, 6 kinds of shrubs.