Agricultural monitoring and early warning (AMEW) is a high-end tool of modern agricultural management and the high-risk nature of agriculture determines that AMEW must be concomitant with the development of modern agriculture. Scientific and technical issues in AMEW are reviewed in this paper. Firstly, the main contents and difficulties of data acquisition, data analysis and data application and service in AMEW are analyzed and discussed emphatically. Then, major scientific questions are raised including data perception in an uncertain state, the parameter rule under micro-data and big data, influence entanglement in complex system. Finally, important technology progresses including the agricultural standardization technology, advanced data acquisition technology and intelligent analysis system development are reviewed, and the main direction of future agricultural monitoring and early warning is proposed.

agricultural information  /  information acquisition  /  information analysis  /  agricultural monitoring and early warning