Spatial structure in a moso bamboo (Phyllostachys edulis) stand is an important factor in its growing process. To analyze the influence of interannual variation characteristics of spatial patterns having different planting patterns in the early stage of moso bamboo stands used as carbon sinks, an aggregation index and Rip-ley's K(d) function were applied from 2009 to 2013, and results were fitted with regression equations. Results showed 1) spatial patterns of new moso bamboo and established moso bamboo with an aggregated distribution pattern after five years of afforestation. 2) The aggregation index in group-planted moso bamboo stands for new moso bamboo was from 0.38 to 0.76 and for established moso bamboo was from 0.45 to 0.60; for uniformly planted moso bamboo stands, the aggregation index for new moso bamboo was from 0.18 to 0.65, and the estab-lished moso bamboo stand was from 0.18 to 0.52. 3) A strong relationship was found between the aggregation index of an established stand of moso bamboo (y) and culm number (x). For a uniformly planted moso bamboo stand, the fitted regression equation was y = 0.1037x0.4193, R2 = 0.9379; and for group-planted moso bamboo stands it was y = 0.00004x2 - 0.0027x + 0.501, R2 = 0.9856. 4) In the process of forest establishment, new moso bamboo carbon sink stands existed as an agglomerate distribution for different distance scales. 5) Thus, the cultivation mode influenced the moso bamboo stand's culm number and spatial distribution pattern.