基于TVDI的内蒙古草地干旱变化特征分析

程伟,辛晓平

Analysis of Spatial-Temporal Characteristics of Drought Variation in Grassland Area of Inner Mongolia Based on TVDI

CHENG Wei,XIN XiaoPing

表5 不同草地类型中各干旱变化类型所占面积比

Table 5 The ratio of area for each drought type (%)

变化类型Change type TMS TS TDS TSD TD LM MM M 显著变湿Wet significantly 2.83 0.33 0 0 0 2.23 3.54 1.12 变湿Wet 18.67 2.42 0.02 0 0.02 10.23 17.30 7.44 轻微变湿Wet slightly 28.44 9.39 0.04 0.02 0.04 18.58 31.77 16.93 稳定不变Stable 49.98 84.02 63.43 33.93 37.98 63.68 47.37 63.02 轻微变干Dry slightly 0.07 2.91 22.17 32.38 34.13 3.61 0.02 9.91 变干Dry 0.01 0.84 12.32 26.50 23.50 1.30 0 1.47 显著变干Dry significantly 0 0.10 2.02 7.16 4.33 0.36 0 0.10