三峡库区消落带植被恢复重建模式探讨

Vegetation Restoration and Reconstruction in the Water-Fluctuation Zone of Three Gorges Reservoir Area

消落带特点、成因、生态特征等决定植被遴选和生境培育,是三峡库区消落带植被恢复重建的关键问题。通过系统回顾三峡库区消落带植被恢复重建研究进展,总结植被遴选成果及经验,基于重建原理将现有植被恢复重建模式分为水位变动适应型和土壤基质加固型。最后,从改善消落带植被立地条件出发,提出生态环保、技术可行的基于土壤固化的植被恢复重建模式,并通过河道生态修复的成功实践论证了其在三峡库区消落带植被恢复重建中的可行性和重要应用意义。

The vegetation selection and habitat cultivation are determined by the characteristics,the forming mechanism and the ecological features of the water-fluctuation zone,which are of vital importance to the vegetation restoration and reconstruction in the zones of Three Gorges Reservoir area.Present restoration modes are categorized into the water-fluctuation-adaptive mode and the soil-substrate-reinforcement mode in the light of previous studies and achievements in this regard.In consideration of the site condition of vegetation in the zone,an eco-friendly,technically feasible mode of vegetation restoration and reconstruction based on soil stabilization is finally proposed.It is applied to the eco-restoration practice in the river course,and is proved to be of great feasibility and practical value.