Erosion in Jian-Shan-Pi Reservoir watershed is worst.If demand brings a chance to renew it, the method of desilting should be involved in study items.

• 尖山埤水库集水区冲蚀问题严重，将来若基于客观环境需求而有更新改善的机会，排砂减淤措施必须纳入考量。