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以库尔勒包头胡农场滴灌棉田为研究对象,讨论不同盐分棉田在棉花生育期土壤水分和盐分的变化规律。结果表明:各盐分棉田含水率和含盐量随时间呈中等变异特征,含盐量变异性大于含水率。在棉花整个生育期含水率比较稳定,花铃期各盐分棉田水分差异明显;高盐分棉田含水率变化小于中、低盐分棉田含水率变化,且高盐分棉田含水率普遍高于中、低盐分棉田。在棉花整个生育期盐分的变化趋势相似,高盐分棉田盐分变化大于中、低盐分棉田。各盐分棉田随深度变化盐分差异明显,在10~20cm处各棉田含盐量最小,40~60cm处为盐分的聚集处,各盐分棉田含盐量最大。
Taking the drip irrigation cotton field in Baotou farm in Korla as the research object, the variation regularity of soil moisture and salinity in different salt cotton fields during cotton growth period was discussed. The results showed that the moisture content and salinity of each salinity had a medium variation with time, and the variation of salt content was greater than the water content. The moisture content of cotton in the whole growing period was stable, and the difference of water content in each salt in flowering period was obvious. The change of moisture content in high salt cotton was less than that in middle and low salt cotton fields, and the water content of high salt cotton was generally higher than that of medium and low salt cotton . The changes of salinity in cotton during the whole growth period were similar. The changes of salinity in high salinity cotton fields were more than those in middle and low salinity cotton fields. The salt content of cotton field varies greatly with the depth. The salt content of each cotton field is the smallest at 10 ~ 20cm and the salt concentration at 40 ~ 60cm. The salt content of each salt cotton field is the highest.