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不同灌溉定额对枸杞土壤水分动态变化规律的影响 预览 被引量:10

Effect on Changes of Soil Water Dynamics of Lycium barbarum by Different Irrigation
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摘要 利用时域反射仪对不同灌溉定额下枸杞园土壤水分的变化特征进行研究,分析不同灌溉定额条件下土壤水分垂直变化特征。结果表明,枸杞园中土壤水分变化的深度一般在0~100cm,0~60cm土层变化尤为激烈,灌水量越大,变化越明显,100~180cm土层各处理土壤水分变化不明显;根据不同处理土壤水分运移规律,将0~180cm土层垂直分为4层,即活跃层(0~30cm)、次活跃层(30~60cm)、缓变层(60~100cm)和均稳层(100~180cm)。 Used the Time Domain Reflectometry,the spatial variation of soil moisture characteristics were studied under different irrigation conditions in the Lycium barbarum field,the vertical changes of soil water characteristics were analyzed under different irrigation amount conditions.The results showed that the depth of soil water content generally changed within the range of 0-100 cm.Especially the changes in 0-60 cm soil was particularly intense,the greater the amount of irrigation,the more obvious changes.The soil moisture in each treatment did not change significantly within the range of 100-180 cm.According to the laws of water movement,the vertical changes in soil moisture could be divided into four layers: active layer(0-30 cm),sub-active layer(30-60 cm),slowly decreasing layer(60-100 cm),and stable layer(100-180 cm).
作者 郑国保 张源沛 孔德杰 朱金霞 ZHENG Guobao,ZHANG Yuanpei,KONG Dejie and ZHU Jinxia(Agricultural Bio-Technology Center,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 750002,China)
出处 《西北农业学报》 CSCD 北大核心 2012年第2期 117-120,共4页 Acta Agriculturae Boreali-occidentalis Sinica
基金 宁夏回族自治区科技攻关项目(KGZ-09-07-05) 宁夏回族自治区自然科学基金项目(NZ0973)
关键词 土壤水分 灌溉定额 枸杞 垂直分布 Soil water Irrigation quota Lycium barbarum Vertical distribution
作者简介 第一作者:郑国保,男,助理研究员,从事农业节水技术研究。E-mail:zhenggbll21@163.com 通讯作者:张源沛,男,博士,研究员,主要从事农业节水技术集成研究。E-mail:zhangypei@163.com
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