桂西南喀斯特-北部湾海岸带生态环境脆弱性时空分异与驱动机制研究

张泽, 胡宝清, 丘海红, 邓雁菲

Spatio-temporal Differentiation and Driving Mechanism of Ecological Environment Vulnerability in Southwest Guangxi Karst-Beibu Gulf Coastal Zone

ZHANG Ze, HU Baoqing, QIU Haihong, DENG Yanfei

表3 桂西南喀斯特-北部湾海岸带2008、2013、2018年主成分信息表

Tab.3 Table of principal component information for 2008, 2013 and 2018 of Southwest Guangxi karst-Beibu gulf coastal zone

年份 主成分系数 主成分 PC1 PC2 PC3 PC4 PC5 2008 特征值λ 0.04263 0.02768 0.01454 0.00565 0.00129 贡献率/% 41.95250 26.57840 12.21970 4.15090 4.01350 累计贡献率/% 41.95250 68.53090 80.75030 84.90150 88.91500 2013 特征值λ 0.04629 0.02459 0.01359 0.00676 0.00193 贡献率/% 44.43210 23.16610 11.34610 5.25850 1.53820 累计贡献率/% 44.43210 67.59820 78.99430 84.25280 85.79100 2018 特征值λ 0.03954 0.02267 0.01428 0.00971 0.00565 贡献率/% 38.36110 21.67230 13.88610 8.78620 6.99840 累计贡献率/% 38.36110 60.03340 73.91950 82.70570 91.75730