Zhè / piàn / gōng / kuàng / yòng / dì / jīng / guò / zhěng / zhì / hòu / yǐ / jīng / kāi / shǐ / huī / fù / shēng / tài。

这片工矿用地经过整治后，已经开始恢复生态。

After remediation, this industrial and mining land has begun to recover ecologically.