干旱区生态环境知识资源中心(Arid): 陕北黄土地区护坡植物适应性研究

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	陕北黄土地区护坡植物适应性研究
其他题名	Research on adaptability of slope-protecting plants in north of Shaanxi loess area
	许锐; 李寻昌; 吴瑞芳; 董琪
来源期刊	长安大学学报. 自然科学版
ISSN	1671-8879
出版年	2016
卷号	36 期号:4 页码:26-32
中文摘要	针对黄土高原生态环境脆弱,且随着人类工程活动日益频繁,黄土滑坡等地质灾害日益严重的问题,以植物护坡是恢复黄土边坡生态和防治黄土地质灾害的有效手段为依据,基于陕北地区黄土边坡植物调查,统计分析了延安地区黄土边坡植物科属分布及密度,提出了植被群落的结构特点。通过多样性指数分析研究了黄土边坡植物物种多样性特点,并提出了蒿属植物的相对优势度。研究结果表明:陕北地区植物物种多样性处于中等偏下水平,基本符合陕北黄土高原半干旱地区的边坡植被组成特征;延安地区黄土边坡植物主要以耐寒旱及耐贫瘠的品种为主;随着坡度增大和土壤湿度降低,植物数量相应线性减少,但蒿属植物相对优势度相应增大,并提出了坡度与植物数量及坡度与蒿属植物比重间关系的经验公式;蒿属植物是该地区植物护坡和生态重建的潜在优良树种,对黄土边坡稳定性及生态恢复有重要研究价值;最后基于各种影响因素与相对优势度的规律分析,提出了各坡度下适宜的植物种群及相应的附着结构措施,为陕北地区黄土边坡植物防护设计提供了可靠依据。
英文摘要	Due to the fragile ecological environment and the influence of human engineering activities,the loess slope geological disasters such as landslides have been increasing in Loess Plateau.The loess slope protection by vegetation is the effective means for restoration ecology and geological disaster prevention.Based on the investigation of local natural growth plants on loess slope in north Shaanxi,the statistics of dominant families and genera as well as vegetation density were analyzed,and the vegetation community structure of loess slope was presented.The community species diversity characteristics were studied based on diversity index analysis,and the relative dominance of artemisia species on loess slope was presented.The results show that the vegetation species diversity is below the medium level in north Shaanxi,which accords with the slope vegetation composition characteristics of Loess Plateau semiarid areas;the drought and freezing tolerant plant types are the main varieties of loess slope vegetation;the plant quantity decreases with the increase of gradient or the decrease of soil moisture,but the relative dominance of artemisia species on loess slope increases;the empirical formulas of the relation between plant quantity and slope height and between slope height and proportion of artemisia species was proposed.Artemisia is the main varieties of loess slope naturally growing vegetation in north Shaanxi area,which is the suitable species for ecological restoration and slope protection.The research on its slope protection effect as well as growth characteristics plays an important role in loess slope stability and ecological restoration.Finally,based on the relative dominance under the influence of complex factors,the selection of vegetation type and structural design of ecoengineering for loess slope protection under different slope gradients are suggested,which provides a reliable basis for the design of plant protection to loess slope.2 tabs,7 figs,23 refs.
中文关键词	道路工程 ; 适应性 ; 黄土边坡 ; 植被群落结构 ; 多样性指数
英文关键词	road engineering adaptability loess slope vegetation community structure diversity index
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Transportation
CSCD记录号	CSCD:5776425
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378883
作者单位	许锐, 长安大学地质工程与测绘学院, 西安, 陕西 710054, 中国.; 李寻昌, 长安大学地质工程与测绘学院, 西安, 陕西 710054, 中国.; 吴瑞芳, 长安大学地质工程与测绘学院, 西安, 陕西 710054, 中国.; 董琪, 信息产业部电子综合勘察研究院, 西安, 陕西 710054, 中国.
推荐引用方式 GB/T 7714	许锐,李寻昌,吴瑞芳,等. 陕北黄土地区护坡植物适应性研究[J],2016,36(4):26-32.
APA	许锐,李寻昌,吴瑞芳,&董琪.(2016).陕北黄土地区护坡植物适应性研究.长安大学学报. 自然科学版,36(4),26-32.
MLA	许锐,et al."陕北黄土地区护坡植物适应性研究".长安大学学报. 自然科学版 36.4(2016):26-32.