控水条件下桃树地土壤温度变化特征研究  

Study on Variation Characteristic of Soil Temperature under Water-control in Peach Garden

作　　者：卫新东[1] 贺军奇[1] 汪有科 

机构地区：[1]长安大学,西安710054 [2]国家节水灌溉杨凌工程技术研究中心,陕西杨凌712100

出　　处：《节水灌溉》2011年第6期7-9,13,共4页Water Saving Irrigation

基　　金：国家"十一五""863"计划项目"现代节水农业技术创新平台"(2006AA100223);干旱半干旱地区水文生态与水安全学科创新引智基地项目(B08039)

摘　　要：土壤温度是决定果树生育进程的主导因素。研究一定土壤水势条件下桃树地土壤温度的变化特征,在地面以下5、15、30 cm处分别埋设土壤传感器,用以长期监测桃树地土壤温度变化规律。同时分析了不同深度土壤温度日变化、季节性变化及年变化特征。结果表明,当土壤水势维持在-40^-60 kPa这一阈值范围内时,各深度土壤温度变化表现一定的规律性。明确土壤温度变化规律,能为生产实践中人工调控果树生态环境及果树生命健康诊断提供理论依据。Soil temperature is a dominant factor of reproductive process of fruit trees.The variation characteristic of soil temperature under one case soil water potential in the peach garden is studied through the experiment.The sensors of soil temperature are set under ground 5 cm,15 cm and 30 cm in order to monitor the variation characteristic of soil temperature in peach garden.At the same time,the characteristics of soil temperature daily variation,seasonal variation and year variation are analyzed.The results show that the variation of soil temperature has regularity when the soil water potential is controlled at-40^-60 kPa.To reveal the law can supply foundation for controlling the ecological environment of fruit and diagnosing the life healthy of fruit tree.

关 键 词：桃树 土壤水势 土壤温度 变化特征 

分 类 号：S152[农业科学—土壤学]