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当前位置: 首页 > 文章 > 草甸土水田土壤物理性质的变化规律 安徽农业科学 2019,47 (21) 71-73
Position: Home > Articles > Change Law of Soil Physical Properties in Meadow Soil Paddy Fields Journal of Anhui Agricultural Sciences 2019,47 (21) 71-73

草甸土水田土壤物理性质的变化规律

作  者：
焦峰;吕淑敏;汪昊;李响;唐雷;王秋菊;刘峰
单  位：
黑龙江省农业科学院土壤肥料与环境资源研究所;黑龙江八一农垦大学
关键词：
草甸土;水田;开垦年限;土壤物理性质;变化规律
摘  要：
[目的]阐明水田土壤物理性质的演变规律.[方法]以草甸土为研究对象,通过室内分析方法,研究水田随开垦年限的增加土壤物理性质的变化规律.[结果]草甸土水田随开垦年限增加,土壤物理性质变化规律不尽相同;在耕层,草甸土随开垦年限增加土壤容重均升高;在犁底层,土壤容重逐年上升;在心土层,草甸土土壤容重开垦为水田后显著降低.在耕层,草甸土固相比和液相比开垦为水田后均呈增加趋势,气相比在各层随开垦年限增加均呈下降趋势;在犁底层和心土层,草甸土开垦为水田后液相比均呈上升趋势,固相比在犁底层呈上升趋势,在心土层均呈下降趋势.随开垦年限增加,在耕层,草甸土粉粒开垦为水田后均呈上升趋势,黏粒表现为降低趋势;在犁底层,草甸土开垦为水田后黏粒下降;在心土层,草甸土黏粒和粉粒与旱田相比均表现为上升趋势,砂粒则下降;草甸土砂粒在耕层上升.[结论]随开垦年限增加,草甸土的物理性质已逐渐向水田演变.
译  名：
Change Law of Soil Physical Properties in Meadow Soil Paddy Fields
作  者：
JIAO Feng;Lü Shu-min;WANG Hao;Heilongjiang Bayi Agricultural University;
关键词：
Meadow soil;;Paddy field;;Opening years;;Soil physical properties;;Change law
摘  要：
[Objective]To clarify the characteristics of soil physical properties in paddy field.[Method] Taking meadow soil as the research object, through the indoor analysis method, the change law of soil physical properties increased with the opening years of paddy fields.[Result]With the increase of opening years in meadow soil paddy field, the change law of soil physical properties was different;In the plough layer,the soil bulk density of the meadow soil increased with the opening years;in the plow bottom layer,the soil bulk density increased year by year;in subsoil layer, the soil bulk density of the meadow soil is significantly reduced after the paddy field.In the plough layer,the soil solidification of the meadow soil was increased compared with the liquid compared with the liquid,and with the increase of the opening years,the gas ratio showed a downward trend.In the plough bottom layer and the subsoil layer,In the plough bottom layer and the core soil layer, the open soil of the meadow soil showed an upward trend compared with the post-liquid of the paddy field. The solid-state ratio was higher than that at the plough bottom layer, and it showed a downward trend in the subsoil layer.With the increase of the opening years,the paddy soil in the plough layer and the meadow soil increased after the paddy field.The clay showed a downward trend.In the plow bottom layer,the clay of the meadow soil was reduced after reclaiming the paddy field;in the subsoil layer,the clay and the grain of the meadow soil showed an upward trend compared with the dry field,and the sand grain decreases;the sand of the meadow soil rises in the plough layer.[Conclusion]With the increase of the opening years,the physical properties of meadow soil have gradually evolved into paddy fields.

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