In addition, the more than 1,000-meter-wide river bed in which the Linpien had originally meandered was now reduced to a channel of 200 to 300 meters in which the river was constricted, increasing its speed toward the ocean and eliminating the opportunity for the water to infiltrate down into the aquifer.
屏東平原荖濃溪、林邊溪、高屏溪等主要河流多年來因為盜採砂石嚴重，持續傳出河床降低、橋墩基樁裸露的新聞；而早年先民為了灌溉而建造的大小埤塘，因為河水消瘦補充不及，儲水灌溉功能不彰而逐漸被水泥化，在在使地下水庫失去補充機會。