芨芨草叶片养分特征对氮磷不同添加水平的响应

李军军, 李萌茹, 齐兴娥, 王立龙, 徐世健

Response of nutrient characteristics of Achnatherum splendens leaves to different levels of nitrogen and phosphorus addition

LI Jun-Jun, LI Meng-Ru, QI Xing-E, WANG Li-Long, XU Shi-Jian

表2 土壤不同N:P处理下养分添加水平与芨芨草叶片N、P含量及养分回收效率的Pearson相关分析

Table 2 Pearson correlation analysis between nutrient addition level and leaves N, P contents and nutrient resorption efficiency of Achnatherum splendens at different N:P addition levels

氮磷比 N:P N (g) N (s) P (g) P (s) N:P (g) N:P (s) NRE PRE NRE:PRE p R p R p R p R p R p R p R p R p R 5 0.200 0.470 0.020 0.740 0.030 0.730 0.140 0.540 0.950 0.020 0.690 0.160 0.410 -0.310 0.080 0.610 0.450 -0.290 15 0.230 -0.450 0.005 0.830 0.005 0.830 0.040 0.700 0.700 0.180 0.010 0.790 0.040 -0.630 0.890 -0.050 0.010 -0.790 25 0.330 -0.370 0.020 0.730 0.020 0.750 0.990 -0.010 0.020 0.740 0.030 0.720 0.000 -0.920 0.900 0.050 0.002 -0.880