基于温度植被干旱指数（TVDI）的甘肃省农业干旱监测方法研究

沙莎, 王丽娟, 王小平, 胡蝶, 张良

Study on monitoring method of agricultural drought in Gansu Province based on Temperature Vegetation Dryness Index

SHA Sha, WANG Lijuan, WANG Xiaoping, HU Die, ZHANG Liang

表4 甘肃省夏季TVDI的农业干旱等级阈值

Tab.4 Agricultural drought grade thresholds based on TVDI in summer in Gansu Province

农业干旱等级 6月 7月 8月 无旱 TVDI<0.54 TVDI<0.52 TVDI<0.52 轻旱 0.54≤TVDI<0.62 0.52≤TVDI<0.63 0.52≤TVDI<0.59 中旱 0.62≤TVDI<0.70 0.63≤TVDI<0.75 0.59≤TVDI<0.65 重旱 0.70≤TVDI<0.78 0.75≤TVDI<0.87 0.65≤TVDI<0.72 特旱 TVDI≥0.78 TVDI≥0.87 TVDI≥0.72