he was amazed to find that some citise on cutting the trees which distorted the environment .

不可以.
whichr指的是some citise on cutting the trees .你换成and,意思就变了,变成some cities 在破坏环境了.
另外,您这句子好象不太顺,destroy打错了,应该是are吧.he was amazed to find that some citise kepton cutting the trees which distoryed the environment . 应该是这样kept on，ok，这样就对了。解释不变，仍然是上面的。