晋西北丘陵风沙区不同种植年限柠条( Caragana korshinskii )种子更新早期过程对干旱胁迫的响应机制
张宇, 缑倩倩, 高敏, 张妍, 郭文婷, 王国华

The response mechanism of early seed regeneration process of Caragana korshinskii bushes with different plantation ages in sandy-hilly region of northwest Shanxi Province
Yu Zhang, Qianqian Gou, Min Gao, Yan Zhang, Wentin Guo, Guohua Wang
图4 所测15个相关指标主成分特征向量
Fig.4 Principal component eigenvectors with the 15 measured indexes