北京市垃圾卫生填埋场野生植被群落特征研究

以北京市具有典型代表性的北神树和高安屯垃圾卫生填埋场为例，对填埋场的野生植被资源进行了调查和研究。研究区内有野生草本植物25种，其中优势种群是狗尾草种群，亚优势种群为灰菜、稗草种群。建议在卫生填埋场植被建设初期，在种植人工草皮的同时，适当地引入狗尾草、稗草、灰菜等野生优势种，使野生草本群落逐渐替代人工草坪；在植被建设中后期，种植适量抗性强的优良灌木树种，以提高填埋场植被的物种多样性，增加坡面景观效果，发挥植被护坡固土的生态功能。

Study on Wild Vegetation's community Characteristics of Sanitary Landfill in Beijing

The authors studied the wild vegetation of the Beishenshu and Gaoantun Sanitary Landfill in Beijing, found that there were 25 wild herbages. Green bristlegrass was dominant species, and fat hen and cockspur grass were subdominant species. On the early days of planting vegetation, we advise that the sanitary landfills introduce green bristlegrass, fat hen and cockspur grass at the same time of sodding. On the latter days, they can plant some good shrubberies to hold the soil of the slope.