Use of life cycle assessment methodology for determining phytoremediation potentials of maize-based cropping systems in fields with nitrogen fertilizer over-dose |
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| Authors: | Sheng-Wei Nie Wang-Sheng Gao Yuan-Quan Chen Peng Sui A Egrinya Eneji |
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| Institution: | 1. Research Group EnVOC, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent B-9000, Belgium;2. Institute for Agricultural and Fisheries Research (ILVO), Burgemeester Van Gansberghelaan 92, B-9820 Merelbeke, Belgium;3. Agroscope, Institute for Sustainability Sciences, LCA Group, Reckenholzstrasse 191, 8046 Zurich, Switzerland |
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| Abstract: | Using the life cycle assessment (LCA) method, we analyzed the effects of different cropping systems (sole maize (CK), maize + soybean (CST) and maize + groundnut (CGT)) on the environment. The comprehensive index of environmental impacts varied in the order, sole maize > maize + groundnut > maize + soybean, with corresponding intercropping values of 0.1295, 0.1229 and 0.0945, respectively. The results showed that intercropping maize with suitable plants (e.g., groundnut and soybean) could reduce the adverse effects of over-application of nitrogen fertilizer on the environment. The study further showed that the LCA method may be a convenient and effective approach for analyzing the environmental impact of fertilizer management in agricultural fields. |
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