摘要
以新疆北部玛纳斯河流域前山地区坡面为研究背景,采用室内模拟实验,研究不同坡度和坡向对坡面土壤水分入渗和蒸发过程的影响以及坡面不同覆盖(黑膜、白膜)的保水能力。结果表明:蒸发过程中随着日辐射时长和辐射强度的增加,土壤含水率的日相对减少量也随之增加,0~20cm土层对辐射强度变化的响应最为明显;坡度对湿润锋的运移距离和运移速率有明显影响,坡度越大,湿润锋的运移距离越大,运移速率也越快;对坡面进行覆盖处理后,黑膜的保水性要优于白膜,且坡度越陡,覆盖对坡面整体的保水能力影响越小。该研究成果以期为新疆北部坡面地区发挥水源涵养、土壤保持等生态功能提供理论依据。
Taking the slope in the front mountain area of the Manas River basin in northern Xinjiang as the research background,the effects of different slopes and directions on the soil water infiltration and evaporation process of the slope surface and the water retention capacity of different mulches(black film and white film)on the slope were studied by indoor simulation experiments.The results showed that with the increase of the daily radiation duration and radiation intensity,the daily relative decrease of soil moisture content in the evaporation process also increased,and the response of the upper 20 cm soil layer to the change of radiation intensity was the most obvious;After covering the slope,the water retention of the black film was better than that of the white film,and the steeper the slope,the smaller the effect of covering on the overall water retention of the slope.The research results will provide theoretical basis for the ecological functions of water conservation and soil conservation in the northern slope area of Xinjiang.
作者
张涛
张建新
范文波
杨海梅
乔长录
ZHANG Tao;ZHANG Jian-xin;FAN Wen-bo;YANG Hai-mei;QIAO Chang-lu(School of Water Conservancy and Construction Engineering,Shihezi University,Shihezi 832000,Xinjiang,China;Corps Key Laboratory of Modern Water-saving Irrigation,Shihezi 832000,Xinjiang,China;Xinjiang Academy of Agricultural Reclamation Sciences,Shihezi 832000,Xinjiang,China)
出处
《节水灌溉》
北大核心
2023年第8期44-51,共8页
Water Saving Irrigation
基金
国家自然科学基金项目(51569028)
国家自然科学基金项目(51769030)
国家自然科学基金项目(41761064)。
关键词
坡面
覆膜
入渗
土壤含水率
slope surface
lamination
infiltration
soil moisture content
