Biochar applied to Australian fields and left for a number of months cut such emissions by more than 70 percent as well as preventing nitrogen and ammonia from leaching out of the soil in water.

生物炭在澳大利亚使用后，几个月后，农田的碳排放量剧减70%多，与此同时，它还能阻止土壤里的氨氮溶入水体。

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The dynamic distribution and fate of nitrogen species in the surface-water and leaking-water of simulated water bamboo fields were evaluated by the leaching-pond orientation experiments.

通过测坑定位试验，研究了茭白田坑面水和渗漏水中氮素变化动态和流失规律。

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Scientists at the festival said that to comply with this new regime, pollution - such as from the leaching of fertilisers from fields - would have to be more tightly controlled than it is now.

BBC: English and Welsh rivers 'improving'