不要在水源旁边使用肥料，农药，除草剂等等化学制品，比如井边，泉水边，池塘边，湿地边等等。
Do not use fertilizers , pesticides , or herbicides if you are near water , such as a well , stream , pool , or marsh .
井干方知泉水贵。
When the Well 's dry , we know the Worth of Water .
井泉水