Artificial forestation is one of the core contents in environment management and resource utilization of waterlogged floodplain currently. Poplar, which is a fast-growing, flood-resistence and widely-used tree, has become one of the preferred species in the seasonally flooded lands of the middle and low reaches of the Yangtze River.But flooding-stress is still the main limited factor of hindering poplar growth in waterlogged floodplains, resulting in huge losses of timber production, and even plant death. A...