晋西北覆膜玉米田土壤水分初探  

Exploration of Soil Moisture of Mulching Maize Field in the Northwest of Shanxi

作　　者：王玲[1] 牛俊杰[1] 

机构地区：[1]太原师范学院汾河流域科学发展研究中心,山西晋中030619

出　　处：《绿色科技》2015年第10期53-54,58,共3页Journal of Green Science and Technology

基　　金：国家自然科学基金(编号:41171423)资助

摘　　要：指出了土壤水分是影响玉米作物生长发育的主要因素,为研究晋西北干旱地区覆膜玉米田苗期土壤水分含量,以露地作为对照,采用烘干法测定了0~600cm深度的水分含量。结果表明：玉米田覆膜处理后,0~200cm土壤含水量明显高于露地;其变化幅度较小,最低为11.5%,最高为17.1%。土壤水分含量在垂直剖面上呈现出先增大后降低再增加的趋势。300cm土层土壤水分含量均表现出波动性降低趋势。覆膜处理有一定的保水增温作用,使覆膜玉米田在苗期保持较充足土壤水分。The article points out that soil moisture is the main factor affecting the growth and development of maize. To study the content of soil moisture in arid area of mulching maize field＇s seedling stage, the article measures the water content of 0 to 600cm by drying method and takes the open field as a control. The results show that with the process of mulching, the soil moisture of 0 to 200era is clearly higher than that of the open field. The rangeability is small, and it changes from 11.5° to 17. 1°. The soil moisture content in the vertical section shows a trend of increasing first and then decreasing and finally increasing. The soil moisture content of 300cm＇s soil layer shows a trend of fluctuant decreasing. Mulching has a certain effect on keeping moisture and increasing temperature, which makes the mulching maize field maintain adequate soil moisture in the seedling stage.

关 键 词：地膜覆盖 水分含量 旱作玉米 晋西北 

分 类 号：S513[农业科学—作物学]