三江平原中部耕作区水—土壤—植被耦合关系评价

何金宝, 孔繁鹏, 赵建, 刘博文, 刘洪博

Assessment of water-soil-vegetation coupling characteristics in the central farming areas of the Sanjiang Plain

HE Jin-Bao, KONG Fan-Peng, ZHAO Jian, LIU Bo-Wen, LIU Hong-Bo

表2 水体指标主成分得分系数及指标权重

Table 2 Matrix of principal component score coefficients and indicator weights for water body indicators

指标	F₁	F₂	F₃	综合得分系数	权重
Ca²⁺	0.361	-0.104	-0.038	0.217	0.096
K⁺	-0.046	-0.114	0.900	0.039	0.017
S $O_{4}^{2 -}$	0.249	0.435	0.086	0.273	0.121
Cl^-	0.261	0.445	0.137	0.288	0.128
Mg²⁺	0.362	-0.049	0.015	0.235	0.104
Na⁺	0.334	-0.064	0.192	0.231	0.102
TDS	0.372	-0.007	0.064	0.256	0.113
N $O_{3}^{-}$	0.286	0.174	0.044	0.236	0.104
fCO₂	0.285	-0.059	-0.337	0.144	0.064
TH	0.366	-0.090	-0.021	0.224	0.099
HC $O_{3}^{-}$	0.233	-0.472	-0.037	0.049	0.022
pH	-0.073	0.564	-0.059	0.069	0.030