以南水北调北京段PCCP管线工程的植被恢复区为研究对象, 基于南水北调中线北京段PCCP管线工程特点及其穿越地区的环境特点，通过野外调查与室内分析方法,对不同植被恢复措施的植被配置模式以及草本植物多样性和生物量进行了研究。结果表明：工程绿化模式在短期内能取得较好的恢复效果，复层和混交模式下草本植物多样性指数和生物量均较高；封育模式的草本植物生物量大但是种类较少；复耕复林模式下的草本植物多样性指数和生物量则较为平均和稳定。

According to the characteristics of PCCP pipeline project and environmental characteristics of area where the pipeline crosses over, the vegetation restoration area of PCCP project in Beijing section of South-to-North Water Transfer Project was investigated to determine the configuration modes of different vegetation restoration measures and the diversity and biomass of herbs using the field investigation and laboratory analysis. The results showed that (1) the engineering greening mode can achieve good restoration effects within a short time, whereas the diversity and biomass of herbs are high for both stratified and mixed modes; (2) the fencing mode can result in high biomass but low diversity of herbs; and (3) the rehabilitation mode can lead to relatively even and stable diversity index and biomass of herbs.