Academic Journal
Applications of land surface model to economic and environmental-friendly optimization of nitrogen fertilization and irrigation
| العنوان: | Applications of land surface model to economic and environmental-friendly optimization of nitrogen fertilization and irrigation |
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| المؤلفون: | Fei Wang, Jingchun Fang, Lei Yao, Dongrui Han, Zihan Zhou, Baozhang Chen |
| المصدر: | Heliyon, Vol 10, Iss 6, Pp e27549- (2024) |
| بيانات النشر: | Elsevier, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Science (General) LCC:Social sciences (General) |
| مصطلحات موضوعية: | Land surface model, Nitrogen fertilizer and irrigation optimization, Economic income, Environmental cost, North China Plain, Science (General), Q1-390, Social sciences (General), H1-99 |
| الوصف: | Land surface models (LSMs) have prominent advantages for exploring the best agricultural practices in terms of both economic and environmental benefits with regard to different climate scenarios. However, their applications to optimizing fertilization and irrigation have not been well discussed because of their relatively underdeveloped crop modules. We used a CLM5-Crop LSM to optimize fertilization and irrigation schedules that follow actual agricultural practices for the cultivation of maize and wheat, as well as to explore the most economic and environmental-friendly inputs of nitrogen fertilizer and irrigation (FI), in the North China Plain (NCP), which is a typical intensive farming area. The model used the indicators of crop yield, farm gross margin (FGM), nitrogen use efficiency (NUE), water use efficiency (WUE), and soil nitrogen leaching. The results showed that the total optimal FI inputs of FGM were the highest (230 ± 75.8 kg N ha−1 and 20 ± 44.7 mm for maize; 137.5 ± 25 kg N ha−1 and 362.5 ± 47.9 mm for wheat), followed by the FIs of yield, NUE, WUE, and soil nitrogen leaching. After multi-objective optimization, the optimal FIs were 230 ± 75.8 kg N ha−1 and 20 ± 44.7 mm for maize, and 137.5 ± 25 kg N ha−1 and 387.5 ± 85.4 mm for wheat. By comparing our model-based diagnostic results with the actual inputs of FIs in the NCP, we found excessive usage of nitrogen fertilizer and irrigation during the current cultivation period of maize and wheat. The scientific collocation of fertilizer and water resources should be seriously considered for economic and environmental benefits. Overall, the optimized inputs of the FIs were in reasonable ranges, as postulated by previous studies. This result hints at the potential applications of LSMs for guiding sustainable agricultural development. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2405-8440 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2405844024035801; https://doaj.org/toc/2405-8440 |
| DOI: | 10.1016/j.heliyon.2024.e27549 |
| URL الوصول: | https://doaj.org/article/cbc6152ce5fc4cbcb2b11f161d814a63 |
| رقم الانضمام: | edsdoj.bc6152ce5fc4cbcb2b11f161d814a63 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 24058440 |
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| DOI: | 10.1016/j.heliyon.2024.e27549 |