摘要
Basically, water resources are renewable resources. In arid areas, deep-layered water can be considered as unrenewable resources; in semi-arid areas, deep confined aquifer layers are an emergency water source to solve the drinking problem for man and livestock, and it should be paid more attention that over- exploitation of underground water can cause water level falling and ground subsiding.
Basically, water resources are renewable resources. In arid areas, deep-layered water can be considered as unrenewable resources; in semi-arid areas, deep confined aquifer layers are an emergency water source to solve the drinking problem for man and livestock, and it should be paid more attention that over- exploitation of underground water can cause water level falling and ground subsiding.
出处
《国土资源》
2002年第1期17-19,共3页
Land & Resources
