景观保护，即使是有机耕作，他建议只要每英亩产量相当于常规养殖的产量那么就是可行的。
Even organic farming, he suggests, is justifiable in the context of landscape preservation only if the per-acre yields equal those of conventional farming.
耕作位移在景观内的变化导致净土壤重新分配，即耕作侵蚀。
The consequence of this variation in translocation is net soil redistribution within landscapes, i. e. tillage erosion.
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