开垦年限对黑土农田土壤微生物功能多样性的影响

董炜华, 刘青源, 李晓强, 耿云灿, 李瑞英

Impact of Reclamation Time on Functional Diversity of Soil Microorganisms in Farmland of Black Soil

Dong Weihua, Liu Qingyuan, Li Xiaoqiang, Geng Yuncan, Li Ruiying

图4 不同开垦年限黑土农田土壤微生物群落碳源利用的主成分分析 A1, A2, A3分别代表开垦98 a 0~10 cm, 10~20 cm, 20~30 cm土层；B1, B2, B3分别代表开垦50 a 0~10 cm, 10~20 cm, 20~30 cm土层；C1, C2, C3分别代表开垦10 a 0~10 cm, 10~20 cm, 20~30 cm土层

Fig. 4 Principal component analysis on utilization of carbon sources by soil microorganisms in farmland with different reclamation time