滇中城市群不透水表面时空变化与反常气候现象研究

刘志林, 丁银平, 角媛梅, 王金亮, 刘澄静, 徐秋娥

Spatiotemporal variation of impervious surface and abnormal climate phenomenon in central Yunnan Urban Agglomeration

LIU Zhilin, DING Yinping, JIAO Yuanmei, WANG Jinliang, LIU Chengjing, XU Qiue

表2 滇中城市群不透水表面在8个方向的增长特征

Tab. 2 The growth characteristics of IS in the eight directions of the Central Yunnan urban agglomeration

方向 平均增速(km2/a) 突变点时间(a) 突变点前速度(km2/a) 突变点后速度(km2/a) 增幅(%) E 5.30 2007 2.85 10.40 264.39 N 1.98 2006 1.13 3.54 214.36 NE 7.68 2003 3.41 13.91 283.63 SE 4.75 2008 3.01 8.91 195.67 S 17.28 2007 11.78 28.78 144.31 SW 6.79 2007 5.20 10.12 94.62 W 6.47 2007 5.33 8.86 66.45 NW 3.19 2006 2.89 3.75 29.56