An increasing amount of forest land has been used for industrial purposes, or for agricultural development such as crop growing.

越来越多的林地被用于工业目的，或用于农业发展，如种植作物。

youdao

Forests are not only trees, and forest ecosystems are more fragile, longer-lived and less closely controlled than crop fields.

森林不仅仅是树木，森林的生态系统更加脆弱，寿命更长，与农田相比更松散的管理模式。

youdao

Results showed that in compound management of forest and agriculture it is obviously existed the effect on soil chemical property, and there is difference because of variety of the crop.

研究结果表明：实行农林复合经营对土壤化学性质有显著的影响，并因作物的品种而存在差异。

youdao