surface water resources amount

例句：

1. 1.The surface water resources are limited due to the rapid urbanization.
   由于快速的城市化，地表水资源有限。
2. 2.The government has set a goal to increase the surface water resources by 20%.
   政府设定了一个目标，到20年增加地表水资源的20%。
3. 3.The conservation of surface water resources is crucial for sustainable development.
   保护地表水资源对于可持续发展至关重要。