气候变化下辽西北春玉米生育期需水量研究

曹永强, 李维佳, 赵博雅

Water requirements of spring maize in Northwest Liaoning Province under climate change

Yongqiang CAO, Weijia LI, Boya ZHAO

表3 特征值和主成分贡献率及累计贡献率

Table 3 Eigenvalue and principal component contribution rate and cumulative contribution rate

主成分因子 特征值 贡献率/% 累计贡献率/% 1 3.500 49.999 49.999 2 2.158 30.829 80.828 3 0.564 8.062 88.891 4 0.455 6.505 95.395 5 0.167 2.314 97.594 6 0.079 1.206 98.916 7 0.066 0.950 99.866 8 0.009 0.134 100.000