【摘要】 对土壤含水量的各种测量方法、原理及其优缺点进行了分析对比 ,指出利用土壤水分传感器法量测土壤含水量既反映了土壤水分的动态情况 ,又安全可靠 ,快速直读 ;特别是通过使用接口电路形成的智能化仪表 ,具有不破坏土壤结构且能定点定位自动监测土壤水分、控制灌溉水量等自动化功能 ,已成为目前土壤水分测定的主要研究发展方向。更多还原

【Abstract】 Through comparison and analysis of methodology , principle, and advantage and disadvantage of various soil water content measurin g methods, it is pointed out that measuring soil water content by using soil wat er content transducer can reflect the dynamic conditions of soil water content. This method is safe, reliable, rapid and direct; and especially, by using intell igent meter formed by interface circuit, this method has the functions of automa tic soil water content monitoring, irrigation water quantity control at differen t position and location without soil structure breakage, and it has become the m ain research development direction of soil water content measuring at present.更多还原