The total carbon storage in P. amarus ecosystem was 135.808110 t/ha, of which 46.032 420 t/hm2 in the aboveground arbor, about 33.9%, and 2.600 68t/hm2 in the litter, about 1.91%, and 87.1750t/hm2 in the soil layer (0 ~ 60 cm) , accounted for 64.19%.
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