古尔班通古特沙漠一年生植物的氮吸收策略

侯宝林, 庄伟伟

Nitrogen uptake strategy of annual plants in Gurbantünggüt Desert

HOU Bao-Lin, ZHUANG Wei-Wei

表2 物种、氮(N)形态、土壤深度、月份及其互作对植物氮吸收速率影响的四因素方差分析

Table 2 Four-way ANOVA analysis for the effects of species, month, nitrogen (N) form, soil depth, and their interactions on nitrogen uptake rate by plants

影响因子 Effect indicator df F p 物种 Species 1 21.042 <0.001 氮形态 N form 2 98.604 <0.001 土壤深度 Soil depth 1 22.728 <0.001 月份 Month 1 4.110 0.048 物种×氮形态 Species × N form 2 55.760 <0.001 物种×土壤深度 Species × Soil depth 1 0.035 0.852 物种×月份 Species × Month 1 0.106 0.746 氮形态×土壤深度 N form × Soil depth 2 5.956 0.005 氮形态×月份 N form × Month 2 0.823 0.445 土壤深度×月份 Soil depth × Month 1 6.813 0.012 物种×氮形态×土壤深度 Species × N form × Soil depth 2 0.583 0.562 物种×氮形态×月份 Species × N form × Month 2 0.883 0.420 物种×土壤深度×月份 Species × Soil depth × Month 1 0.356 0.554 氮形态×土壤深度×月份 N form × Soil depth × Month 2 0.499 0.611 物种×氮形态×土壤深度×月份 Species × N form × Soil depth × Month 2 2.424 0.099