Coupling Analysis of Hydrometeorology and Erosive Landforms Evolution in Loess Plateau, China

Table 2

The proportion of covariance and first principal values of landform and climatic factors.

(a)

PRIN number	Eigenvalue	Difference	Proportion	Cumulative
Landform factors
1	2.9524	2.9051	0.9841	0.9841
2	0.0473	0.0470	0.0158	0.9999
3	0.0003		0.0001	1.0000
Climatic factors
1	2.7813	2.6352	0.9271	0.9271
2	0.1461	0.0734	0.0487	00.9758
3	0.0726		0.0242	1.0000

(b)

Basins	Weihe River	Wudnghe River	Beiluohe River	Jinghe River	Fenhe River	Qinhe River	Yanhe River
Landform factors	2.7176	0.1526	−0.3206	1.3861	0.1233	−1.9096	−2.1495
Climatic factors	3.3354	−0.3999	−0.4694	0.9867	−0.7555	−1.3332	−1.3640