围场县绝大多数池塘底质为草炭土,水质普遍偏酸,pH值大多在5.2—6.5之间。我们于1988—1989年进行了酸性水质的改良试验。一、试验条件在我县最北部广发永乡、中部围场镇和南部兰旗卡伦多三处各选一个试验池和一个对照池,池塘面积3.9—5.2亩不等,池水深度为2.5m,进排水方便,池塘底质均为草炭 The vast majority of ponds in Yauchang County are peat soil, with generally poor acidity and mostly pH between 5.2 and 6.5. We conducted an acidic water quality improvement test in 1988-1989. First, the test conditions In the county’s northernmost GF, Yongxiang, Central Wai town and the southern Lancaster Karen three selected a test pool and a control pond, the pond area of ​​3.9-5.2 acres ranging from the depth of 2.5m, Easy access to drainage, pond sediment are peat