雨少也会造成旱灾:
Less rain can also cause drought:
干旱:干旱是一种长期无雨或少雨,使土壤水分不足、作物水分平衡遭到破坏而减产的农业气象灾害,也是我国最严重的气象灾害。如果干旱还伴随着破坏性的人类活动,则会引起一系列更为严重的环境恶化问题,在我国主要表现为3个方面:一是干旱引起水资源持续减少,水危机日益突出;二是湖泊水位因干旱而降低,水面缩小甚至干涸;三是干旱导致沙漠化土地明显扩展。
Drought: drought is a kind of agricultural meteorological disaster without rain or little rain for a long time, which leads to the shortage of soil water and the destruction of crop water balance and the reduction of production. It is also the most serious meteorological disaster in China. If the drought is accompanied by destructive human activities, it will cause a series of more serious environmental degradation problems, which are mainly manifested in three aspects in China: first, the water resources continue to decrease due to drought, and the water crisis is increasingly prominent; second, the water level of the lake decreases due to drought, and the water surface shrinks or even dries up; third, the drought leads to the obvious expansion of desertified land.
1、03年非洲大部分地区遭到了百年不遇的大旱灾。36个国家约1。5亿人口面临饥饿的威胁。仅1983年就有1600万人死于饥饿和与营养不良有关的疾病。
【变化多端的雨】相关文章:
★ 初一英语作文:How to study English?