WebGIS-based farmland ecosystem spatial decision support system

A quantitative dynamic knowledge model for evaluating the stability and analyzing the fluctuations of crop production was established in this study based on the results of farmland ecosystem stability and fluctuation of crop output. This dynamic model was combined with the technology of B/S distributive network structure and information management platform based on WebGIS to establish a Farmland Ecosystems Space Management System, which can perform the networking, digital and intelligent functions. This system is able to perform the functions of map manipulation, query and analysis of spatial information, the stability evaluation of regional farmland ecosystems, crop production volatility analysis, visualization output, and experts in intelligent decision-making and system maintenance. The test results of the system show that the structure and functions of Farmland Ecosystem Space Management System can meet the needs of the farmland ecosystem management and decision support with good stability and strong practicability. The implementation of this system provides technical foundation for the networked and digitalized farmland ecosystem spatial decision.