Diagrams showing the sites where the samples in the three composting methods were collected

(A) anaerobic fermentation, (B) static compost, and (C) organic fertilizer production. Three samples were obtained from each site and and each sample was collected using the 5-point samping method.

(A)厌氧发酵（anaerobic fermentation）、(B)静态堆肥（static compost）及(C)有机肥料生产（organic fertilizer production）。每个站点采集3个样本，且每个样本均采用五点取样法（5-point sampling method）收集。