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1·Thirty years ago the islanders scratched a living from infertile soil, salt pans and fishing.

三十年前岛民在贫瘠的土地上艰苦生活，晒盐和牧渔。

2·Degeneration problems of karst soil are mostly infertile soil, vegetation reduction, natural environment erosion and rock desertification.

喀斯特土壤退化问题主要表现为土壤贫瘠、植被减少、水土流失和土地石漠化。

3·The idea behind square foot gardening is that you can plant fruits, vegetables and flowers in raised beds, above infertile soil and even out of the reach of pets.

平方英尺的菜园背后的理念是，你可以在非贫瘠的土壤培育的苗床上种植水果，蔬菜和花卉，远离宠物的破坏。

4·Once the humus layer disappears, nutrients cannot be recycled and leach from the soil, converting soil from fertile to infertile and making it suitable only for savanna vegetation.

一旦腐殖质层消失，养分就无法从土壤中回收和过滤，致使土壤由肥沃变为贫瘠，只适于热带草原植被的生长。

5·The soil proved too infertile to sustain real pasture or arable crops.

这土壤被证明太贫瘠，不能真正用作放牧或种植作物。

6·Water deficit and soil infertile is the main limited factor in arid agricultural production.

旱地农业生产的主要限制因素是水分亏缺和土壤贫瘠。

7·The soil proved too infertile to sustain real pasture or arable crops.

贫瘠，不能真正用作放牧或种植作物。