玉米马铃薯秸秆混合腐解的非加性效应

陈林康, 赵平, 王顶, 向蕊, 龙光强

Non-additive effect of mixed decomposition of maize and potato straw

CHEN Lin-Kang, ZHAO Ping, WANG Ding, XIANG Rui, LONG Guang-Qiang

图6 马铃薯秸秆、玉米秸秆和混合秸秆分解率驱动因素的随机森林回归模型分析。图中仅展示了|均方误差| ≥3.0%的驱动因子。MS, 玉米秸秆; PS, 马铃薯秸秆; XS, 混合秸秆。AN, 铵态氮含量; AP, 速效磷含量; DGA, D-半乳糖醛酸; DL, D,L-a-甘油; DOC, 溶解性有机碳含量; DX, D-木糖; GL, 肝糖; GP, 葡萄糖-1-磷酸盐; I-a, I-赤藻糖醇; NADG, N-乙酰基-D-葡萄胺; NN, 硝态氮含量。*, p < 0.05; **, p < 0.01。

Fig. 6 Random forest regression model analysis on the main driving factors for decomposition rates of potato straw, maize straw and mixed straw. |mean square error| ≥ 3.0% factor was shown in the figure. MS, maize straw; PS, potato straw; XS, mixed straw. AN, ammonium nitrogen content; AP, available phosphorus content; DGA, D-galacturonic acid; DL, D,L-a-glycerol; DOC, dissolved organic carbon content; DX, D-xylose; GL, glycogen; GP, glucose-1-phosphate; I-a, I-alginol; NADG, N-acetyl-D-glucamine; NN, nitrate nitrogen content. *, p < 0.05; **, p < 0.01.