作物水分状况自动监测与诊断的研究进展

该文综述了近年来国内外作物水分自动监测方法(冠层温度、光谱反射率、茎秆直径微变化、茎液流速等)的研究进展和各种方法的原理及优缺点，指出当前的作物水分状况监测与诊断指标在实际应用中还存在一定的问题，必须加强基础理论研究，建立合理的水分诊断指标体系，开发精确可靠的作物水分状况监测设备，以实现灌溉管理的自动化。

Advances in automated monitoring and diagnosis of crop water status

At present, the emerging interest in irrigation science study is focused on automated monitoring and diagnosis of crop water status, which is essential to carrying out precise irrigation control. This paper reviews the development of methods(canopy temperature, spectral reflectance, microvariations of stem diameter, sap flow, etc.)to automatically monitor crop water status, meanwhile, their principles, advantages and disadvantages are introduced. The practical problems existing in the application of crop water status indicators for irrigation management are pointed out. In order to realize irrigation automation, the study of basis theory should be strengthened, reasonable complete index systems of crop water diagnosis should be established and precise and reliable equipment for monitoring crop water status should be developed.