field accumulation

例句：

1. 1. The farmers have been accumulating the soil for the new crop.
   农民们一直在为新作物积累土壤。
2. 2.The scientists are studying the field accumulation of pollutants in the environment.
   科学家们正在研究环境中污染物的田间积累情况。
3. 3.The field accumulation of carbon dioxide is a major concern for climate change.
   二氧化碳的田间积累是气候变化的一个主要担忧。