| 保护性耕作对黑钙土水分及温度的影响 |
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| 引用本文： | 张薇,周连仁.保护性耕作对黑钙土水分及温度的影响[J].东北农业大学学报,2011,42(2):115-121. |
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| 作者姓名： | 张薇 周连仁 |
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| 作者单位： | 东北农业大学资源与环境学院,哈尔滨,150030 |
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| 基金项目： | 黑龙江省科技攻关项目，东北农业大学创新基金 |
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| 摘 要： | 以黑龙江省兰西县黑钙土为研究对象,在常规、免耕、秸秆覆盖3种耕作处理下,研究了玉米田不同深度下土壤水分及温度的动态变化.结果表明,保护性耕作可以增加土壤水分,以20 cm土层内效果明显.3种耕作处理的土壤含水量差异不大,秸秆覆盖处理增加水分的效果最好,秸秆覆盖处理的土壤含水量略高于免耕处理,保护性耕作对增加20 cm以...
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| 关 键 词： | 保护性耕作 土壤水分 土壤温度 黑钙土 |
Effects of conservation tillage on soil moisture and soil temperature of chernozem |
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| ZHANG Wei,ZHOU Lianren.Effects of conservation tillage on soil moisture and soil temperature of chernozem[J].Journal of Northeast Agricultural University,2011,42(2):115-121. |
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| Authors: | ZHANG Wei ZHOU Lianren |
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| Institution: | (Resources and Environmental Sciences College,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | The tillage experiment trials were established in Lanxi County,Heilongjiang Province. The dynamics of soil moisture and soil temperature in maize field under three cultivation treatments:conventional tillage(CT) ,no tillage(NT) ,tillage with straw cover(TS) ,were researched. The results showed that conservation tillage could increase soil moisture,obviously increase in soil layer of 20 cm. The differences of soil moisture among three treatments were not significant. The effect treated with TS was the best and the soil moisture was higher than that of NT. Conventional tillage increased soil moisture not significantly in soil under 20 cm. In different soil depths,the soil temperature of TS was the lowest,which was not good for the germination and emergence of maize. |
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| Keywords: | conventional tillage soil moisture soil temperature chernozem |
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