Microcosm study on fate and dynamics of mangrove tannins during leaf litter leaching

Ecological Processes

Table 4 Mass balances of total phenolics (TP) in the leaf litter of four mangrove species before and after 216 h leaching and their dynamic changes in leachates during the leaching experiment

Species	Decrease of TP^a (mg)	Weight dynamics of TP in leachates (mg)											P (%)^b
Species	Decrease of TP^a (mg)	6 h	12 h	24 h	48 h	72 h	96 h	120 h	144 h	168 h	192 h	216 h	P (%)^b
Ko	852.1 ± 25.6 (87.9%)	1.6	6.5	12.7	24.1	46.6	63.6	70.9	64.8	61.4	52.8	50.8	9.3
Ac	1036.3 ± 33.1 (74.5%)	15.9	45.2	77.7	93.7	103.9	122.5	132.4	147.2	142.0	123.3	114.9	14.2
Sa	729.5 ± 10.9 (90.5%)	1.4	7.3	18.5	44.8	57.6	66.9	61.4	52.7	49.4	46.0	42.5	9.2
Am	459.3 ± 15.7 (89.6%)	1.0	5.7	11.7	39.7	77.2	101.1	109.6	102.0	84.2	80.6	74.8	23.9

^aDecrease of TP = weight of TP in leaf litter before leaching – after leaching, and percentage (value in bracket) = decrease of TP/total TP before leaching
^bP means the proportion = peak value of TP in leachate/calculated value of TP in leachate after leaching; the bold figure in each line indicates the peak weight of TP in leachate
Ko: K. obovata, Ac: A. corniculatum, Sa: S. apetala, and Am: A. marina