地壳地幔电导率
Crustal and mantle conductivity
耕地地力
Cultivated land fertility
cropland soil fertility
Fertility of cultivated land
Farmland productivity
productivity of cultivated land
farmland soil fertility
Cultivated land capacity
arable land
耕地地力等级
Fertility of cultivated land
耕地地力调查
Soil fertility investigation of cultivated land
耕地地力评估
Natural productivity evaluation
耕地地力评价
Farmland productivity evaluation
farmland fertility evaluation
Evaluation of cultivated land fertility
evaluation of cultivated land productivity
Evaluation of farmland productivity
Evaluation of integrated fertilities of cultivated land
准坚稳地地壳带
quasi-cratonic crustal belt