This photo was taken in a park in Shunde, Guangdong, China.
The Chinese with it Mandarin Pinyin is below
尊敬的市民: zun1 jing4 de5 shi4 min2:
请爱护公物 qing3 ai4 hu4 gong1 wu4
We’ll never wound this Earth!
珍惜资源 zhen1 xi1 zi1 yuan2
My translation of the Chinglish sign is below
Respectful city people:
Please cherish public property
We’ll never wound this Earth!
Treasure natural resources
I do find this sign quite funny.