Modeling Agricultural-Environmental Processes in Crop Production

Golubev, G.N. & Shvytov, I.A. (1982). Modeling Agricultural-Environmental Processes in Crop Production. IIASA Collaborative Paper. IIASA, Laxenburg, Austria: CP-82-S5

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Abstract

The most important field-scale environmental effects of dry farming--which can potentially lead to such large-scale environmental impacts as eutrophication, water pollution, and cropland losses--have been identified as soil erosion, nitrogen leaching, and phosphorus and pesticide losses. The work in this field was begun by considering the hydrological and major natural biogeochemical processes, which, through a chain of events, cause these environmental effects. There are many mathematical models describing single processes such as water percolation, runoff, nitrogen mineralization, nitrification, denitrification, phosphorus precipitation and adsorption, evapotranspiration, nutrient uptake, pesticide degradation, etc. Moreover, a few complex models (CREAMS, ARM, ACTMO,etc.) have been developed.

This volume presents papers focusing on: 1.) discussions of the state of the art of developing mathematical models for environmental processes in crop production; 2.) improving the guidelines for completing the IIASA research on mathematical modeling of the environmental effects of agriculture; and 3.) refining the Institute's collaborative work with other organizations. A review of the main points brought out at the meeting concludes the volume.

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