Expert system design for agroecological patterns of multiple cropping in Lower Reaches of Liaohe PlainⅠ.Design thought of the system

Abstract

Abstract: In this paper the practice of agroecological patterns of multiple cropping in the Lower Reaches of Liaohe Plain is described.The design thought of an expert system of agroecological patterns of multiple cropping is put forward by applying the principles of agroecology,and the design principles for overall structure of the system is described with the integrated approach of expert system(ES),geographic information system(GIS)and relational database management system(RDBMS).A new approach to the management of regional agroecosystems is theoretically explored by means of high and new technology of computer.

Key words: Multiple cropping, Agroecological patterns, Expert system, Geographic information system, Database management system, Lower Reaches of Liaohe Plain, isotonic salt stress, drought stress, photosynthetic characteristic, chloroplast ultrastructure, tomato

Liang Wenju, Wen Dazhong, Shen Shanmin, D. D. Calvin, M. C. Saunders, E. G. Rajotte, J. E. McClure, Zheng Binglin, Liu Fuxiang. Expert system design for agroecological patterns of multiple cropping in Lower Reaches of Liaohe PlainⅠ.Design thought of the system[J]. Chinese Journal of Applied Ecology, 1996, 7(3): 321-325.

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