【摘要】 在若尔盖湿地段公路建设区,草地生态系统恢复和重建采取了草皮切割贮存并在主体工程完工后将草皮回覆创面进行生态快速恢复的模式,以期实现有效保持水土、构建生态公路的目标。对恢复群落和原生背景群落的地上生物量进行研究,以评价这种生态恢复技术的可行性与有效性。通过对群落种类组成基本性质以及群落生物量与组成植物群落中的种类密度分析,结果表明,优势种对群落性质和环境具有控制性影响,切割草皮与背景样方相比,植物种类有所减少,但优势种组成基本未发生变化;对地上生物量结构波动与变化规律研究结果表明,生物量随季节的变化而变化,在8月中下旬分别达到它们的峰值生物量;对群落的结构分析表明,切割样地有其特定的群落结构和功能。更多还原

【Abstract】 Grassland ecosystem restoration and reconstruction of highway construction in the Zoige wetland was studied combining artificial turf cutting technology with relocating technology. In this study, the aboveground biomass of the restoration community and the native community was determined to evaluate the feasibility and effectiveness of this technique. By analyzing the species composition of the community and the species density in the plant community, the results showed that the dominant species had a controlling influence on the community nature and the environment. The plant species of turf cutting plots decreased when compared with the control, while the composition of the dominant species were not changeable in turf cutting plots and the control. The results of the research on the fluctuation and variation of the aboveground biomass structure showed that the biomass varied with the seasons. The peak biomass was reached in late August. The structure analysis of the community showed that the cutting plots had specific community structure and the function.更多还原