Total soil organic C (SOC), particulate organic C (POC) and microbial biomass C (MBC) (mean ±1 SD) at two depths at the end of a soil moving experiment (n = 4).

Conventional till soil was initially dried and crushed to pass a 1 mm sieve and then installed under the three different land uses for a period of one year at Horseshoe Bend, Athens, GA, USA, July 2007–August 2008.
Different letters indicate statistical significance between treatment means within a depth class based on Tukey's HSD with α = 0.05. See also Table S8.

常规耕作土壤首先经风干、粉碎并过1mm孔径筛，随后布设至美国佐治亚州雅典市马蹄弯的三种不同土地利用样地中，开展为期一年的试验，试验周期为2007年7月至2008年8月。
不同字母表示同一深度层级内各处理均值间的统计学差异显著，该检验基于显著性水平α=0.05的图基真实显著差异法（Tukey's HSD），详见补充表S8。