Results showed that energy and materials input were mainly organic. There were surplus of nitrogen, phosphorus and potassium in the farmland soil pool.

结果表明：该农户生态系统能量和物质的投入均以有机为主，农田土壤库中氮、磷、钾均有盈余。

youdao

Recent findings have revealed the implications of black carbon in global biogeochemical cycles of carbon and oxygen through its contribution to the slow cycling of soil organic carbon pool.

新近的研究证实，黑碳通过在缓慢的土壤有机碳库中的循环，对全球碳和氧的地球生物化学循环起到极其重要的作用。

youdao

The reconstructive efficiency of soil available nutrient pool was dependent on the surplus or deficit of soil nutrients.

土壤中赢余（亏损）的养分在养分库重建中的作用可以用速效养分库重建效率来表示。

youdao

Researchers believe the contamination passed not only into the soil and water, but also into the gene pool, with abnormal numbers of children since being born with genetic malformations.

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