车桑子幼苗生物量分配与叶性状对氮磷浓度的响应差异

王雪梅, 闫帮国, 史亮涛, 刘刚才

Different responses of biomass allocation and leaf traits of Dodonaea viscosa to concentrations of nitrogen and phosphorus

WANG Xue-Mei, YAN Bang-Guo, SHI Liang-Tao, LIU Gang-Cai

表2 氮和磷处理下车桑子幼苗各性状间的相关性

Table 2 Correlations among growth characteristics, biomass allocation and leaf traits of Dodonaea viscosa under nitrogen and phosphorus treatments

处理 Treat 指标 Value 生长性状 Growth trait 生物量分配 Biomass allocation 叶功能性状 Leaf functional trait 株高 Plant height 基径 Base diameter 生物量 Biomass 根冠比 Root:shoot ratio 叶茎比 Leaf:stem ratio 叶干物质 含量 LDMC 比叶面积 SLA 叶片氮含量 N concentration 叶片磷含量 P concentration 氮磷比 N:P 氮处理 Nitrogen treatment 株高 Plant height 1 0.917*** 0.915*** -0.848*** -0.477* 0.404 -0.249 0.840*** 0.180 0.464 基径 Base diameter 1 0.955*** -0.705** -0.380 0.366 -0.205 0.886*** 0.301 0.436 生物量 Biomass 1 -0.773*** -0.282 0.403 -0.269 0.917*** 0.340 0.421 根冠比 Root:shoot ratio 1 0.187 -0.339 0.227 -0.720** -0.032 -0.518* 叶茎比 Leaf:stem ratio 1 -0.206 0.223 -0.234 0.092 -0.217 叶干物质含量 LDMC 1 -0.902*** 0.271 -0.087 0.316 比叶面积 SLA 1 -0.121 0.285 -0.370 叶片氮含量 N concentration 1 0.282 0.535* 叶片磷含量 P concentration 1 -0.636** 氮磷比 N:P 1 磷处理Phosphorus treatment 株高 Plant height 1 0.971*** 0.953*** -0.201 -0.404 0.939*** -0.880*** -0.702** -0.175 -0.254 基径 Base diameter 1 0.951*** -0.058 -0.452* 0.908*** -0.862*** -0.649** -0.154 -0.228 生物量 Biomass 1 -0.099 -0.426 0.919*** -0.882*** -0.622* -0.131 -0.244 根冠比 Root:shoot ratio 1 -0.528* -0.221 0.073 0.425 -0.026 0.265 叶茎比 Leaf:stem ratio 1 -0.281 0.331 0.074 0.255 -0.186 叶干物质含量 LDMC 1 -0.945*** -0.765** -0.293 -0.169 比叶面积 SLA 1 0.653** 0.350 0.050 叶片氮含量 N concentration 1 0.216 0.385 叶片磷含量 P concentration 1 -0.797*** 氮磷比 N:P 1