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Evaluation and Screening of Co-Culture Farming Models in Rice Field Based on Food Productivity

文献类型： 外文期刊

作者： Jin, Tao 1 ; Ge, Candi 3 ; Gao, Hui 1 ; Zhang, Hongcheng 1 ; Sun, Xiaolong 3 ;

作者机构： 1.Yangzhou Univ, Jiangsu Coinnovat Ctr Modern Prod Technol Grain C, Yangzhou 225009, Jiangsu, Peoples R China

2.Yangzhou Univ, Jiangsu Key Lab Crop Genet & Physiol, Agr Coll, Yangzhou 225009, Jiangsu, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Agr Econ & Dev, Nanjing 210014, Peoples R China

关键词： rice field co-culture farming; integrated benefits; model screening; model promotion; food-equivalent unit; arable-land-equivalent unit

期刊名称：SUSTAINABILITY （ 影响因子：3.251； 五年影响因子：3.473 ）

ISSN：

年卷期： 2020 年 12 卷 6 期

页码：

收录情况： SCI

摘要： Traditional farming practice of rice field co-culture is a time-tested example of sustainable agriculture, which increases food productivity of arable land with few adverse environmental impacts. However, the small-scale farming practice needs to be adjusted for modern agricultural production. Screening of rice field co-culture farming models is important in deciding the suitable model for industry-wide promotion. In this study, we aim to find the optimal rice field co-culture farming models for large-scale application, based on the notion of food productivity. We used experimental data from the Jiangsu Province of China and applied food-equivalent unit and arable-land-equivalent unit methods to examine applicable protocols for large-scale promotion of rice field co-culture farming models. Results indicate that the rice-loach and rice-catfish models achieve the highest food productivity; the rice-duck model increases the rice yield, while the rice-turtle and rice-crayfish models generate extra economic profits. Simultaneously considering economic benefits, staple food security, and regional food output, we recommend the rice-duck, rice-crayfish, and rice-catfish models. Simulating provincial promotion of the above three models, we conclude that food output increases from all three recommended models, as well as the land production capacity. The rice-catfish co-culture model has the most substantial food productivity. None of the three models threatens staple food security, as they do not compete for land resources with rice cultivation.

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