高寒草原路域人为干扰区土壤及植被修复研究

Research for Restoration of Soil and Vegetation in Human Disturbance Zone of Road in High-Cold Grassland Area

道路运行会对路域土壤和植被产生间接的破坏,采用样方法对国道213合作市郊段路域小型取土区进行调查研究。结果表明:人为干扰对路域生态环境造成了明显的破坏,路域人为取土区植被和土壤在自然状态下的整体修复情况一般。受地表径流影响,取土区中央土壤肥力自然修复较好,坡面土壤肥力自然修复较差。由于取土区中央特殊的生长环境,植被自然修复状况一般,植物种类与对照区明显不同;在土壤肥力和修复时间的双重作用下,坡面植被自然修复结果较差。因此,建议加强环保宣传,制定路域生态环境保护制度,及时对干扰区进行人工修复。

Road running damages the soil and vegetation indirectly. Small digging area nearby G213 in suburbs of Hezuo was surveyed in the sample plots. The results show that human disturbance has caused damage to coo-environment distinctly; the restoration of soil and vegetation on human disturbance zone under natural conditions is general. Affected by the surface runoff, the restoration of the soil fertility in the center of dig- ging areas is better than that on the slope of digging areas. The restoration of the vegetation in center of dig- ging areas is general, and the species of vegetation between the center of digging areas and contrast are dis tinetly different. The restoration of the vegetation on slope of digging areas is poor because of soil fertility and restoration time. According to the results of this research, the managements should strengthen the prop- aganda of environment protection, develop the system of protection environment of route, and carry out the artificial restoration in the human disturbance zone.