地膜覆盖和秸秆覆盖春小麦棵间蒸发影响因素分析  

Influencing Factors Analysis about Soil Evaporation of Spring Wheat under Different Mulching Material

作　　者：景明[1] 程献国[1] 李强坤[1,2] 

机构地区：[1]黄河水利科学研究院,郑州450003 [2]水利部黄河泥沙重点实验室,郑州450003

出　　处：《灌溉排水学报》2012年第2期97-100,共4页Journal of Irrigation and Drainage

基　　金：水利部公益性行业专项(200901021);中央级科研院所基本科研业务费专项资金资助项目(HKY-JBYW-2011-05);国家自然科学基金项目(50879027)

摘　　要：对比分析了地膜覆盖和秸秆覆盖条件下春小麦棵间蒸发过程,以土壤热通量为大气因素,土壤温度、土壤水分为土壤因素,作物株高为作物因素,采用通径分析方法,研究了石羊河流域春小麦地膜覆盖和秸秆覆盖措施下影响棵间蒸发的因素。研究认为,土壤是影响春小麦棵间蒸发的主要因素。其中地膜覆盖条件下,土壤温度是影响棵间蒸发的重要因素和限制因素,秸秆覆盖条件下,减小土壤含水率将显著降低春小麦棵间蒸发量。The paper analyzed soil evaporation of spring wheat under film and straw mulch respectively,and used path analysis method to research influencing factors of soil evaporation with different mulch material taking soil heat flux as atmospheric factor,soil temperature and soil water as soil factor,and plant height as crop factor.It was believed that soil factors were the main one to soil evaporation,and soil temperature was the most important and limitation under film mulch,and soil water played a main role in controlling soil evaporation under straw mulch.

关 键 词：地膜覆盖 秸秆覆盖 棵间蒸发 影响因素 通径分析 

分 类 号：S512.12[农业科学—作物学]