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本文研究了垄作免耕下稻田土壤团聚体和水热状况的变化。结果表明:垄作免耕下的稻田土壤,<0.01mm土粒团聚度有增大的趋势,其中>0.01mm无机微团聚体和>0.01mm级铁、铝-有机微团聚体所占的比例表现为不同程度的提高,而>0.01mm级钙、镁-有机微团聚体显著下降;土壤水热状况处于新的协调状况促进了土壤潜在肥力的发挥。
This paper studied the changes of soil aggregates and water-heat conditions in paddy fields under no-tillage. The results showed that the soil aggregates of <0.01mm soil had a tendency of increasing with the no-tillage of paddy soils. The ratio of> 0.01mm inorganic microaggregates and> 0.01mm grade iron and aluminum-organic microaggregates For different degrees of increase, while the> 0.01mm calcium and magnesium-organic microaggregates decreased significantly. The soil water and heat conditions were in a new coordination situation and promoted the potential fertility of soil.