高山风电场工程高陡边坡植被恢复措施研究

Study on Vegetation Restoration Measures of High and Steep Slope in Alpine Wind Power Plant Project

结合某高山风电场周边环境的实际特点,通过模拟试验,探究高陡边坡植被恢复措施。采用草本植物宽叶雀稗(播种量2.5 g/m^(2))、高羊茅(播种量1.5 g/m^(2))、画眉草(播种量0.5 g/m^(2))和大花金鸡菊(播种量1 g/m^(2))及木本植物马棘、银合欢、刺槐和马尾松(各5 g/m^(2)播种量)混播,设置开横沟喷纤维微生物肥、开横沟加钉宽木条后喷纤维微生物肥、石质(有破碎带)边坡直喷纤维微生物肥、强风化边坡直喷纤维微生物肥4种施工工艺处理,对喷播覆盖后的植物生长量进行定时观测。结果表明,采用混播方式建立草灌植物聚落,再种植乔木,形成多元化的生态体系,有利于边坡植被恢复,防止水土流失,可提高生态环境恢复速度。需适当增加灌木种子数量,避免草本植物侵占生存空间,植被挂网喷播需注意浇水养护的水压不能太大,为解决高山风电场边坡植被恢复问题提供参考。

Through combining with the actual characteristics of the surroundings of a win farm in the mountains,the study explores the vegetation restoration measures of high and steep slopes through simulation test.Mixture sowing is adopted with herbaceous plants,such as Wide blade ditch millet(2.5 g/m^(2)seeding rate),Tall fescue(1.5 g/m^(2)seeding rate),Eragrostis pilosa(L.)Beauv.(0.5 g/m^(2)seeding rate)and Coreopsis grandiflora(1 g/m^(2)seeding rate),and ligneous plants,such as Hedgehog seahorse,White popinac,Robinia pseudoacacia and Masson pine(5 g/m^(2)seeding rate respectively).4 kinds of processing technology is used,such as open cross ditch spray fiber microbial fertilizer,open cross ditch and nail wide wood strip after spraying fiber microbial fertilizer,stone(with broken zone)slope direct injection fiber microbial fertilizer,and heavily weathered slope direct spray fiber microbial fertilizer.The plant growth after spraying is observed regularly.The results show that the establishment of grass irrigation plant settlement with mixture sowing,the plantation of arbor,and the form of diversified ecological system is beneficial to the slope vegetation restoration,the prevention of water and soil loss,and the improvement of the recovery rate speed of ecological environment.It is necessary to properly increase the number of shrub seeds,avoid the embezzlement of vivosphere by herbaceous plant,and control hydraulic pressure while vegetation hanging nets and spraying.This provides reference for slope vegetation restoration in alpine wind farm.