soil conservation
短语土壤保持 [经] 土壤保持
释义与例句
n.
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1.
Protection of the soil against sediment loss by erosion or fertility loss due to degradation.
不可数 -
2.
A combination of all soil management and land use methods that protect against degradation.
不可数 -
3.
The sub-discipline of soil science that deals with soil conservation (1) and (2).
不可数