| 硬覆盖对土壤水热传输及作物生长发育影响的试验研究 |
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| 引用本文： | 毛学森,曾江海. 硬覆盖对土壤水热传输及作物生长发育影响的试验研究[J]. 生态学杂志, 2000, 19(2): 68-71 |
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| 作者姓名： | 毛学森 曾江海 |
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| 作者单位： | 中国科学院石家庄农业现代化研究所,050021 |
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| 摘 要： | 河北省盐渍区农业水资源非常紧缺 ,农业节水势在必行。覆盖保摘技术是农田节水管理的重要措施之一 ,国内外对此有过不少研究报道。但多集中在地膜、秸秆、砂砾和化学喷涂等覆盖材料上 ,这些覆盖材料在使用中有种种不理想之处 ,如地膜覆盖容易造成残膜的“白色污染” ,并且使用年限短 ,降水不易入渗 ,中耕、除草、施肥困难 ,使作物抗病力差等[1 ] ;秸秆覆盖容易使秸秆中的毒素物质与作物间发生生化它感现象 ,影响作物生长[2 ] 。化学喷涂除了不利于农事作业外 ,还可能造成土壤污染。为此 ,我们在中国科学院南皮试区盐渍土上试用了一种新型覆…
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| 关 键 词： | 作物生长发育 覆盖保墒 水泥硬壳 土壤水热传输 |
A Study of Effects of the Concrete Mulch on Movement of Soil Water and Soil Heat Transfer |
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| Mao Xuesen,Zeng Jianghai. A Study of Effects of the Concrete Mulch on Movement of Soil Water and Soil Heat Transfer[J]. Chinese Journal of Ecology, 2000, 19(2): 68-71 |
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| Authors: | Mao Xuesen Zeng Jianghai |
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| Abstract: | Effects of the concrete mulch on evaporation, transpiration, evaportranspiration, soil temperature, yield of cotton and corn,and water use efficiency were studied by field experiments. The results showed that the concrete mulch cover effectively increased transpiration, yield and water use efficiency and greatly reduced soil evaporation loss and the amplitude of daily and seasonally soil temperature, water content variations. |
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| Keywords: | concrete mulch water deficit and salinized region soil water and heat transfer. |
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