Table 2. Submergence depth and duration of the treatments at different elevations during the three water cycles.

Elevation (m)	Submergence depth (m)†	Submergence duration (d)
		From July 2012 to June 2013	From July 2013 to June 2014	From July 2014 to June 2015
165	10	175	158	217
170	5	125	101	141
175	0	2	5	8

^†The submergence depth refers to the water depth above the soil surface in which saplings of bald cypress and pond cypress were planted. The submergence depth above the top of the saplings varied due to operation of the Three Gorges Dam Reservoir, and can be calculated as the difference between the submergence depth given in this table and the tree height.