... 土壤库 soil pool 土壤矿物 soil mineral 土壤矿物化学 soil mineral chemistry ...
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soil organic carbon pool 土壤有机碳库
Soil carbon pool 土壤碳库
forest soil carbon pool 森林土壤碳库
Soil Phosphorus Pool 土壤磷库
soil c pool 土壤碳库
soil p pool 土壤磷库
soil nutrient pool 土壤养分库
soil nitrogen pool 土壤氮库
changes of soil p pool 旱地磷库变化
·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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