The gypsum that is a symbol of droughty climate and occlusive environment is extensive in Neogene Red Clay.

石膏作为干旱气候和闭塞环境的标志，广泛存在于第三系红层之中。

The main copper mineral is atacamite on the surface, which form on droughty climate conditions in salt basin.

主要的地表铜矿物是氯铜矿，为干旱气候条件下含盐盆地的产物。

The Typical Karst Peak-cluster Depression Area of Northwest Guangxi Autonomous Region is an Area that is droughty, absent soil and agricultural Eco-environment deterioration.

桂西北典型峰丛洼地是一个缺水少土、汗涝灾害严重、农业生态环境十分严酷的区域。

According to the results above, in the northern China, especially in droughty and desert regions, the atmospheric aerosol mainly comes from the sand which is come into being with the dust weather.

因此可以推断，中国北方，特别是干旱荒漠区，大气气溶胶主要来自沙尘天气过程引起的地面沙尘释放。

Xinjiang is one of the main droughty areas, the erosion of sand and salt soil are serious. However, the maize in growth stage needs large amount of water, and maize is very sensitive to salt-stress.

新疆是我国主要的干旱地区之一，土壤的沙化、盐渍化严重，而玉米生育期内需水量较大，对盐碱也很敏感，干旱、盐碱已成为制约新疆玉米扩大面积、提高产量的重要因素。