落叶松原始林树木生长对氮添加的响应

刘修元, 杜恩在, 徐龙超, 沈海花, 方精云, 胡会峰

Response of tree growth to nitrogen addition in a Larix gmelinii primitive forest

LIU Xiu-Yuan,DU En-Zai,XU Long-Chao,SHEN Hai-Hua,FANG Jing-Yun,HU Hui-Feng

表1 落叶松胸径相对生长率与氮添加和年份的双因素方差分析

Table 1 Two-way ANOVA between Larix gmelinii diameter at breast height relative growth rate and N addition and year

方差来源 Sources of variation df 均方 Mean square F p 氮添加 N addition 3 4.21 32.64 <0.001 年份 Year 2 11.26 87.31 <0.001 氮添加×年份 N addition × Year 6 0.19 1.44 0.20 误差 Residuals 1 107 0.13