What's worse, many people are cutting ting down increasing number of trees, causing soil erosion.

更糟的是，很多人都在削减婷下来越来越多的树木，造成水土流失。

youdao

Soil erosion is a major factor of causing environmental degradation.

土壤侵蚀是造成环境退化的一个主要因素。

youdao

Soil erosion is a major factor of causing environmental degradation. For a long time, human irrational utilization of natural resources is destroying the vegetation and thus leads to serious erosion.

土壤侵蚀是造成环境退化的一个主要因素，长期以来，由于人类不合理的利用自然资源，导致植被生存的环境受到极大的破坏，引发了严重的土壤侵蚀。

youdao

Meanwhile, the arable land that we do currently have is becoming more damaged, with soil erosion now causing 40 percent of land degradation worldwide, the FAO says.

CNN: All About: Food and the environment