长期氮添加对典型草原植物多样性与初级生产力的影响及途径
王玉冰1,2,孙毅寒1,2,丁威3,张恩涛1,2,李文怀1,迟永刚4,*(
),郑淑霞1,*()
),郑淑霞1,*()
Effects and pathways of long-term nitrogen addition on plant diversity and primary productivity in a typical steppe
WANG Yu-Bing1,2,SUN Yi-Han1,2,DING Wei3,ZHANG En-Tao1,2,LI Wen-Huai1,CHI Yong-Gang4,*(),ZHENG Shu-Xia1,*()
),ZHENG Shu-Xia1,*()
图1. 氮添加对典型草原物种丰富度(A)和Shannon-Wiener指数(B)的影响(平均值+标准误差)。Control, 完全对照, 不添加任何肥料。不同小写字母表示处理间差异显著(p < 0.05)。
Fig. 1. Effects of N addition on species richness (A) and Shannon-Wiener index (B) in a typical steppe (mean + SE). Control, absolute control, no fertilizer added. Different lowercase letters indicate significant difference among treatments (p < 0.05).
