droughtn.干旱
drought - stress干旱胁迫
drought monitoring干旱监测
Drought torlerance抗旱性
drought physiology抗旱生理
drought indicators干旱指标
droughts/floods旱涝
drought-escaping避干旱的
drought resistanee抗旱性
drought prediction干旱预测
drought perception旱灾感知