| 陆文龙1,2，康春莉1，宋晓娇1，郭平1，谢忠雷1.秸秆改良土壤对磷的淋溶能力及其在不同
团聚体中垂直分布的影响[J].广东农业科学,2014,41(5):115-118 |
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秸秆改良土壤对磷的淋溶能力及其在不同
团聚体中垂直分布的影响 |
| Effects of soil improved by straw on leaching ability of phosphorusand vertical distribution in different soil aggregates |
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| DOI： |
| 中文关键词: 秸秆 磷 淋溶能力 垂直分布 |
| 英文关键词: straw phosphorus leaching ability vertical distribution |
| 基金项目:国家水体污染控制与治理科技重大专项
(2009ZX07208-006-01-01) |
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| 摘要点击次数: 1362 |
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| 中文摘要: |
| 采用室内土柱模拟法研究了不同处理秸秆改良土壤对磷的淋溶能力及其在不同团聚体中垂直分布的
影响，测定了淋溶液中全磷和水溶性磷以及土柱不同层次土壤中全磷、Fe-P、Al-P、Ca-P、O-P 和水溶性磷的含量。结
果表明院不同处理秸秆改良土壤中全磷淋失曲线呈降低趋势，碳化秸秆处理相比其他处理淋溶液中全磷的含量较
少，对全磷淋溶损失具有较大的抑制作用；T2、T3、T4 处理可溶性磷累计淋溶损失量比T1 处理分别减少59.44%、
30.56%、69.44%，处理与对照间差异极显著；土柱中无机形态磷垂直分布中T2、T3、T4 处理在20~25 cm 处增加值都
低于T1 处理，不同处理秸秆改良土壤阻止了无机形态磷向下层土壤的迁移。 |
| 英文摘要: |
| By indoor soil column simulated method, effects of soil improved by straw on leaching ability of phosphorus and
vertical distribution in different soil aggregates were studied, the concentrations of total phosphorus and water-soluble phosphorus
in leaching solution, and total phosphorus, Fe-P, Al-P, Ca-P, O-P and water-soluble phosphorous in different soil layers were
measured. Results showed that, the total phosphorus leaching of soil improved by different straws decreased. Compared to other
treatments, the total phosphorus concentration in leaching solution of carbonized corn straw treatment was less, and carbonized
corn straw had significant inhibition on phosphorus leaching loss. Compared to T1 treatment, the cumulative leaching loss of
water-soluble phosphorus of T2, T3, T4 treatment decreased by 59.44%, 30.56% and 69.44%, respectively, and there was
significant difference between CK and treatments. In the layer of 20 ~25 cm, the increasing value of inorganic phosphorus
concentration of T2, T3, T4 treatment was less than T1 treatment, indicating that soil improved by different straws prevented the
inorganic phosphorous migration into the lower soil layer. |
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