*Vertices 15
1 "植物生态学报" 0.0 0.0 0.0 x_fact 7.072236 y_fact 8.585553
2 "西北植物学报" 0.0 0.0 0.0 x_fact 2.360775 y_fact 4.640839
3 "土壤" 0.0 0.0 0.0 x_fact 1.684826 y_fact 3.591606
4 "水土保持研究" 0.0 0.0 0.0 x_fact 1.705004 y_fact 2.502018
5 "农业工程学报" 0.0 0.0 0.0 x_fact 1.311542 y_fact 5.760694
6 "林业科学" 0.0 0.0 0.0 x_fact 2.189266 y_fact 3.571429
7 "水土保持学报" 0.0 0.0 0.0 x_fact 2.885391 y_fact 8.050847
8 "草业学报" 0.0 0.0 0.0 x_fact 0.847458 y_fact 3.238499
9 "中国生态农业学报" 0.0 0.0 0.0 x_fact 0.978612 y_fact 2.179177
10 "生态环境" 0.0 0.0 0.0 x_fact 0.443906 y_fact 2.017756
11 "中国农学通报" 0.0 0.0 0.0 x_fact 0.433818 y_fact 1.533495
12 "农业环境科学学报" 0.0 0.0 0.0 x_fact 2.491929 y_fact 4.085956
13 "生态学报" 0.0 0.0 0.0 x_fact 12.288136 y_fact 17.615012
14 "应用生态学报" 0.0 0.0 0.0 x_fact 10.391445 y_fact 27.663438
15 "生态学杂志" 0.0 0.0 0.0 x_fact 3.117433 y_fact 4.963680
*Matrix 
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