Page 43 - 《华中农业大学学报》2025年第3期

第 3 期 梁盼 等：稻-鸭-虾综合种养模式与其他稻田种养模式效率比较 37

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macroeconomic fluctuations：a dual perspective based on net‐ with English abstract）.

A comparative study of rice-duck-crayfish integrated farming system
and other rice paddy farming systems

1
1,2
1
LIANG Pan ,CHEN Xuan ,SHI Longzhong ,LI Rongqiang 1
1.College of Economics and Management，Huazhong Agricultural University，Wuhan 430070，China；
2.Shuangshui Shuanglü Institute，Huazhong Agricultural University，Wuhan 430070，China

Abstract To explore the differences in efficiency and influencing factors among various rice field
farming models，this study constructs an “efficiency assessment-influencing factors” framework based on
field survey data collected from Hubei Province in 2023. By integrating micro-level household survey data
with climate data，we employ both SFA and SBM-DEA models to measure the technical efficiency and eco‐
logical efficiency of different rice field farming systems. We systematically examine the efficiency disparities
between these models and evaluate their respective advantages and limitations. The results indicate that：
（1） Among the four rice-farming modes including single rice，rice-crayfish，rice-duck，and rice-duck-cray‐
fish，the rice-duck-crayfish mode demonstrates the highest technical and ecological efficiency，with values of
0.760 and 0.545，respectively. In contrast，the technical efficiency of the rice-duck model and the ecological
efficiency of the rice-crayfish model are the lowest，at 0.581 and 0.323，respectively. （2） Factors such as
the gender of the household head，agricultural insurance，economic development level，extreme tempera‐
tures，and average rainfall have inhibited the improvement of technical efficiency，while the age of the house‐
hold head，agricultural subsidies，total household income，and drone usage positively contribute to technical
efficiency. （3） The age of the household head and indicators of high-temperature heatwaves significantly
improve ecological efficiency，while factors such as the gender of the household head，total household popu‐
lation，total household income，drone usage，level of economic development，extreme low temperatures，and
drought negatively affect the improvement of ecological efficiency. （4） Compared to the single rice mode，

the rice-crayfish mode exhibits significant decrease in technical efficiency and ecological efficiency by 0.053
and 0.178，respectively. However，technical efficiency of the rice-duck-crayfish mode is 0.163 higher than
that of the single rice mode. The study indicates that the rice-duck-crayfish model demonstrates the highest
performance in terms of both technical and ecological efficiency，highlighting its substantial potential for pro‐
motion.
Keywords integrated farming in rice fields； technical efficiency； ecological efficiency； extreme cli‐
mate

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