Abstract:

To study the construction techniques of aquatic forest, three typical wetland types commonly found in plain river network areas, including small rivers, shallow lakes, and aquaculture ponds restored to wetlands, were selected for this study. Based on dry water level, normal water level, and flood water level, the viewing periods of aquatic forest landscapes under different environmental conditions were defined. Various micro-topographic modifications were implemented, and water level regulation measures were established. Afforestation demonstrations were carried out using seven arbor species, including Nyssa aquatica, Taxodiomeria peizhongii, Taxodium ascendens, Taxodium distichum, Taxodium mucronatum, Taxodium Zhongshanshan, Metasequoia glyptostroboides, and three shrub species: Ligustrum sinense, Buddleja lindleyana, and Ardisia japonica. The results showed that the survival rate of arbor species in the demonstration forests reached 93% or higher, and shrubs and ground cover plants above the normal water level grew well. This study preliminarily identified afforestation techniques and early growth patterns of forest stands in different wetland types within plain river network areas, providing valuable technical references for large-scale aquatic forest construction in the Hangjiahu Plain.

Key words: Hangjiahu, plain river network, wetland, aquatic forest, afforestation technique