少花蒺藜草入侵与干旱对羊草群落生产力的影响机制

白皓然, 侯盟, 刘艳杰

Mechanisms of the invasion of Cenchrus spinifex and drought effects on productivity of Leymus chinensis community

BAI Hao-Ran, HOU Meng, LIU Yan-Jie

图1 少花蒺藜草入侵实验设计示意图。实验采用双因素设计: 入侵处理每盆移栽9株少花蒺藜草到本地群落, 对照处理不移栽; 水分处理设置两个水分水平(正常水分&干旱), 干旱保持土壤含水量8%-15%, 正常水分保持土壤含水量30%-40%。

Fig. 1 Experimental design chart of the invasion of Cenchrus spinifex. Two-factor design was used in this experiment, the invasive treatment transplanted nine Cenchrus spinifex plants per pot to the native community and the control treatment did not transplant. We set up two levels of water treatment (normal water & drought), drought to maintain soil moisture content 8%-15%, normal water to maintain soil moisture content 30%-40%.