文章摘要
伏凯,杨建英.北京山区不同质地类型自然边坡土壤种子库特征[J].水土保持学报,2016,(3):
北京山区不同质地类型自然边坡土壤种子库特征
Soil Seed Bank Characteristics of Natural Slope with Texture Types in Beijing Mountain Area
投稿时间:2016-01-20  修订日期:2016-03-15
DOI:
中文关键词: 北京山区  土壤种子库  土质边坡  土石边坡
英文关键词: Mountainous area of Beijing  soil seed bank  soil slope  soil-rock mixed slope
基金项目:“华北地区边坡绿化综合技术研究”项目资助。
作者单位邮编
伏凯 北京林业大学 100083
杨建英 北京林业大学 100083
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中文摘要:
      为了解北京山区土质边坡和土石边坡土壤种子库特征,在北京市鹫峰、百花山和云蒙山采用野外调查和室内萌发相结合的办法,研究了这三个区域中土质边坡和土石边坡土壤种子库大小、物种组成及其与地上植被之间的关系。各个研究区的土壤种子库共包含54种植物,隶属于26科53属,其中有23种草本,21种灌木,未观察到乔木种;土壤种子库密度介于16166.67±2165.16~20612.50±2717.32粒/m2;各个实验地0-5cm土壤层与5-10cm土壤层种子库的种子数量垂直分布有一致的规律性,0~5cm土壤层种子库密度略高于5-10cm;土壤种子库与相应样地地上植被之间相似性指数介于0.390~0.492。通过研究发现,所选地区土壤种子库中包含大量植物种子,且物种丰富度很高,合适的环境条件下,可以顺利萌发,能够满足一般情况下的生态修复要求。可以考虑作为客土在北京山区的环境修复中发挥作用。
英文摘要:
      In order to study the characteristics of soil seed banks of soil slope and soil-rock slope in mountainous area of Beijing, species composition, density and the relationship between soil seed banks and the above ground vegetation were analyzed. Field surveys backed with indoor germination experiments were conducted in three different areas of Beijing, Jiufeng Forest Park, Mount Baihua and Mount Yunmeng. There were found 54 species, which belonged to 26 families,53 genera, in which there were 23 herbs,18 perennial herbs, took the percentage of 78.2. The density of seed was between 16166.67±2165.16~20612.50±2717.32 seed/m2. There was no significant difference of seeds between 0-5cm and 5-10cm for soil depth. Some vertical trends were found for the seed distribution. The density of seed was higher in 0-5cm of soil depth than 5-10cm of soil depth. There was no significant relationship between seed and above-ground vegetation. Similarity coefficient of species composition between soil seed banks and above-ground vegetation were no high, which were between 0.390~0.492.From this study we found that various seed located in the study area. In addition, high diversity of species helps seed to grow under proper conditions. It can be considered to play a role in the environmental restoration of slope in Beijing area as soil replacement.
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