...土地利用；磷素流失；地表径流 [gap=857]keywords：pei yan river watershed; simulated rainfall; land use; phosphorous loss; surface runoff ...
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The results from 1981 to 1990 show that the total annual phosphorus load is accordant with the universal law of phosphorous loss, and the amount of the load magnitude is reasonable.
计算结果显示1981-1990年总磷年负荷量符合磷素流失的一般规律,负荷量数量级合理。
参考来源 - 黑河流域磷素输出连续模拟The field experiment in the effect of PAM application was further confirmed. However, PAM application with lime or plaster was unfavorable to the growth of crop,though it also had good effect on controlling phosphorus loess.
4.田间径流小区试验进一步证实PAM对于控制坡地土壤磷素流失具有很好的效果,石灰石、石膏和PAM混合施用可强化PAM控制径流和磷素流失的作用效果,但可能会降低土壤中磷的有效性。
参考来源 - PAM对紫色土坡地土壤磷素流失的控制效应与机理分析·2,447,543篇论文数据，部分数据来源于NoteExpress
我国由于磷素流失导致的水体污染、湖泊富营养化等问题相当严重。
The problems of water pollution and lake eutrophication which is caused by phosphorus leaching are quiet serious.
径流液中各形态氮、磷浓度远高于渗漏液，而两种流失方式下排水量差异不显著，故地表径流是该条件下氮素和磷素流失的主要方式。
The concentrations of nitrogen and phosphorus in runoff water is higher than that in infiltrated water. Surface runoff is the main way of nitrogen and phosphorus losses under the condition.
通过化学分析和土壤淋洗试验对广州城郊菜地土壤磷素特征和流失风险进行了研究和分析。
The phosphorus characteristics and loss risk assessment of vegetable garden soils in the suburbs of Guangzhou city were studied by chemical analyses and leaching experiment.
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