Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2005, Vol. 21 ›› Issue (10): 330-330.

Special Issue: 现代农业发展与乡村振兴 农业生态

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Review on Early-warning of Agroecosystem Security and Building of Early-warning System

Chen Gaochao, Ma Youhua, Zhao Yanping, Hu Hongxiang, Wang Qiang, Liu Xiaoli   

  • Online:2005-10-05 Published:2005-10-05

Abstract: This paper analyzed the problems in agro-ecosystem and necessity for necessary on the early-warning of agro-ecosystem security. The choice of indices, models and kinds of early-warning and the building of agro-ecology system were reviewed. The indices of early-warning were selected from the factors that are sensitive to mankind influence directly or indirectly. The indices about soil fertility and soil environment are generally included. The models have the function of predication, interpretation and deduction on the research about early-warning of ecology security. Various models are applied in different indices. The kinds of early-warning vary from the degree , state, trend and velocity of deterioration in agro-ecology. The application of WebGIS supplies power technical support for various early-warning, such as early-warning about different scale and time, single item, sub-system and total system.