According to this experiment, there are 100m2 of rain-harvesting acreage, then 3m3 rain harvesting pool will be builtcorrespondingly in gneiss area of Tai-hang mountain.

• 根据本试验研究，在太行山片麻岩区，每100m~2的集雨面积对应修建容积为3m~3的集雨池，便能取得较好的集雨效果。