| 不同土地利用方式下土壤团聚体组成特征及稳定性 |
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| 引用本文： | 石利军,胡振华.不同土地利用方式下土壤团聚体组成特征及稳定性[J].安徽农业科学,2017,45(12). |
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| 作者姓名： | 石利军 胡振华 |
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| 作者单位： | 山西农业大学,山西太谷,030801;山西农业大学,山西太谷,030801 |
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| 摘 要： | 目的]研究不同土地利用方式下土壤团聚体组成特征及稳定性。方法]研究不同土地利用方式下土壤团聚体在(≥5.00、2.00~5.00、1.00~2.00、0.50~1.00、0.25~0.50、0.25 mm)6种粒径下的分布情况及稳定性;在对团粒结构了解的基础上,又进一步分析了3种处理方式慢速湿润法(SW)、扰动湿润法(WS)、快速湿润法(FW)]下土壤团聚体粒径分布特征。结果]随着振荡次数的增加,≥1.00 mm的粒径百分比逐渐减少,而1.00 mm的粒径百分比逐渐增加。3种处理方式(SW、WS、FW)下,土壤团聚体粒径分布不同,≥5.00 mm粒径百分比在SW处理方式下最大,在FW处理下≥5.00 mm粒径百分比最小。结论]SW处理方式对土壤团聚体破坏性最小,同种处理方式下随着坡度的增加团聚体的稳定性也相应增加。
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| 关 键 词： | 土地利用方式 土壤团聚体 粒径 稳定性 |
The Composition Characteristics and Stabilityof Soil Aggregate under Different Land Use Ways |
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| SHI Li-jun,HU Zhen-hua.The Composition Characteristics and Stabilityof Soil Aggregate under Different Land Use Ways[J].Journal of Anhui Agricultural Sciences,2017,45(12). |
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| Authors: | SHI Li-jun HU Zhen-hua |
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| Abstract: | Objective]To study the composition characteristics and stability of soil aggregate under different land use ways.Method] Distribution and stability of soil aggregate in six kinds of particle size (≥5.00, 2.00-<5.00, 1.00-<2.00, 0.50-<1.00,0.25-<0.50, < 0.25 mm) under different land use ways were studied, on the basis of the understanding of granular structure, soil aggregate size distribution under three treatment methods were analyzed.Result] With the increase of oscillation frequency, percentage content of ≥1.00 mm particle size aggregate reduced gradually, percentage content of < 1.00 mm particle size aggregate increased gradually.In three treatment methods (SW, WS, FW), soil aggregate size distribution also had different changes, the content of ≥5.00 mm particle size under the SW treatment was biggest, under the FW treatment, the content of ≥5.00 mm particle size was least.Conclusion] Damaging of SW treatment mode on soil aggregate was least, under the same treatment way aggregate stability also increased accordingly with the increase of slope. |
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| Keywords: | Land use ways Soil aggregate Size Stability |
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