Model of Vegetation Restoration on the Roadside Slopes of Chengnan Expressway

doi:10.7677/ynzwyj201312106

Abstract

Abstract:

The condition of vegetation restoration on the slopes of Chengnan Expressway was investigated by using Line Transect Method. Meanwhile, plants information along the roadside was recorded and α diversity indexes and Important Value of plant community were analyzed as well. According to different gradient conditions, the investigated slopes were divided into three types that were represented by Roman numeralⅠ, Ⅱ and Ⅲ respectively. Data analysis results indicated that: (i) the plants that were investigated consisted of 41 families, 85 genera and 91 species, in which the amount of major four families-Leguminosae, Gramineae, Asteraceae, and Rosaceae-were the largest, constituting 44% of the number of total species.; (ii) different types of slopes were characterized by different plants with different adaptability and there were significant differences between shrub layer and herb layer. According to the results, some practical species of different slope types that adapted to certain environment were selected by α diversity indexes and Important Value. Besides, combining many previous relevant studies and the results of this paper, some advice on vegetation restoration in China was proposed to guide further research and programs in this aspect.

Key words: Diversity index, Expressway, Roadside slope, Vegetarian restoration, Gradient

摘要：

采用样线法对成南高速公路边坡植被恢复进行调查，并分析了研究区域内植物群落的α多样性指数以及重要值参数，同时，根据坡度差异将调查所得边坡划分为斜坡(Ⅰ)、陡坡(Ⅱ)和急坡(Ⅲ)三大类。结果显示：调查所得植物属于41个科，85属，91个种；其中豆科(Leguminosae)、禾本科(Gramineae)、菊科(Asteraceae)、蔷薇科(Rosaceae)的种类最多，占全部种数的44%；不同类型坡面具有不同的适应物种，草本层和灌木层具有不同的适应性特征。同时，通过分析多样性指数和重要值筛选出了不同类型边坡的实用性物种，并根据此次调查的分析处理结果，提出了植被恢复的一些原则以及建议。

关键词: 多样性指数, 高速公路, 边坡, 植被恢复, 坡度

CLC Number:

X 171.4

LI Cheng-Jun-, SUN Qi-, CHEN Zhang-, PANG Liang-, HU Xing-, SUN Hai-Long-, LONG Feng. Model of Vegetation Restoration on the Roadside Slopes of Chengnan Expressway[J]. Plant Diversity, 2013, 35(2): 187-194.

李成俊1, 孙琦1, 陈璋1, 庞亮1, 胡兴1, 孙海龙2, 龙凤1. 成南高速公路边坡植被恢复模式[J]. Plant Diversity, 2013, 35(2): 187-194.

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