页岩严重侵蚀地区生态修复试验研究

Study of Ecological Restoration in Shale Erosion Region

笔者针对三峡库区页岩地区水土流失严重的现状,应用生态修复的原理与方法,开展了以生物措施为主的生态修复试验。结果表明:三峡库区宜昌页岩区应采用水平抽槽整地、客土回填、灌木种直播、乔木种采用生根粉和菌根菌等处理,能够有效地促进植被恢复,提高水土保持能力;分乡页岩区的治理应着重强调自然恢复,同时也要辅以人工方法促进植被恢复,从而恢复生态系统功能,达到改善生态环境的目的。

The test of ecological restoration with the emphasis on biological measure was done to improve the current situation of serious soil and water loss as well as to apply principle and method of biological restoration in shale region of the Three Gorges Reservoir area. The result showed that some steps can promote vegetation recover and improve the capability of soil and water conservation efficiently, including land preparation with contour trench, filling with other soil for melioration, shrub seeding directly, arbor treating with mycorhiza fungi and root growth powder in advance. Meanwhile, spontaneous recovery was emphasized and artificial recovery was assistant in restoration of shale region. Finally, the function of ecosystem and environment was improved steadily.