nutrient concentration gradient

例句：

1. 1. The concentrationgradient of nutrients in the soil is crucialfor plant growth.
   土壤中营养物质的浓度梯度对植物生长至关重要。
2. 2. The gradientof nutrients in the soilplays a significant role in determiningcrop yield.
   土壤中营养物质的浓度梯度在决定作物产量方面起着重要作用。
3. 3. Thegradient of nutrients in the soil can beinfluenced by various factors, such as climateand topography.
   土壤中营养物质的浓度梯度可能受到气候和地形等因素的影响。