*Vertices 5
1 "土壤学报" 0.0 0.0 0.0 x_fact 1.645123 y_fact 11.339600
2 "北京林业大学学报" 0.0 0.0 0.0 x_fact 3.584019 y_fact 11.985899
3 "内蒙古农业大学学报" 0.0 0.0 0.0 x_fact 2.585194 y_fact 3.172738
4 "林业科学" 0.0 0.0 0.0 x_fact 7.755582 y_fact 17.978848
5 "生态学报" 0.0 0.0 0.0 x_fact 9.753231 y_fact 55.522914
*Matrix 
0.000000 0.000000 0.527566 0.000000 0.208198 
0.000000 0.000000 0.623358 0.556871 0.218713 
0.527566 0.623358 0.000000 0.715096 0.547610 
0.000000 0.556871 0.715096 0.000000 0.411640 
0.208198 0.218713 0.547610 0.411640 0.000000