forest conservation; afforestation
Refers to the management and preservation of mountain forests, including erosion control and reforestation. Often used in technical or policy contexts.
Forest conservation projects are important for preventing landslides.
この地域では、治山のために植林が進められている。
In this area, afforestation is being promoted for forest conservation.
erosion-control dam; soil-saving dam
Compound of 治 (manage, control) and 山 (mountain). The term likely emerged in modern forestry and civil engineering contexts.