不同覆盖方式对旱作马铃薯生长及土壤水热特征的影响
普雪可,吴春花,勉有明,苗芳芳,侯贤清,李荣

Effects of Different Mulching Patterns on Growth of Potato and Characteristics of Soil Water and Temperature in Dry Farmland
XueKe PU,ChunHua WU,YouMing MIAN,FangFang MIAO,XianQing HOU,Rong LI
表4 主成分特征值及贡献率
Table 4 Principal component eigenvalue and contribution rate
成分
Component
特征值
Standard
deviation
方差百分比
Variance percentage (%)
累积贡献率
Cumulative contribution (%)
X1 6.96 86.93 86.94
X2 0.89 11.06 97.99
X3 0.16 2.01 100.00