基于能值分析的双季稻-鱼种养模式的效益评价

秦婵元; 喻超; 孙澳辉; 李奎; 胡慧莹; 胡腾; 叶莹莹; 王华

文章摘要

基于能值分析的双季稻-鱼种养模式的效益评价

Benefit evaluation of double cropping rice-fish breeding model based on emergy analysis

Received:November 12, 2023

DOI：10.13254/j.jare.2023.0718

中文关键词: 能值分析，双季稻，稻田综合种养，效益评价

英文关键词: emergy analysis, double cropping rice, rice-aquatic co-culture, benefit evaluation

基金项目:国家重点研发计划项目（2022YFD1700103，2021YFD1700804）；湖南省重点研发计划项目（2021NK2059）；湖南省现代农业（水产）产业技术体系项目（HARS-07）；湖南省水利厅项目（XSKJ2022068-32）；湖南省自然科学基金项目（2023JJ30308）；长沙市自然科学基金项目（kq2208078）

Author Name	Affiliation	E-mail
QIN Chanyuan	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China
YU Chao	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China
SUN Aohui	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China
LI Kui	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China
HU Huiying	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China
HU Teng	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China
YE Yingying	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China
WANG Hua	College of Environment and Ecology, Hunan Agricultural University, Changsha 410125, China	wangchina926@hunau.edu.cn

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中文摘要:

为探索双季稻-鱼种养模式的生态经济效益，本研究利用能值分析的方法，综合分析了湖南省宁乡市双季稻-鱼种养模式与双季稻模式的能值投入与输出，对比了两种模式的经济效益，并利用文献对比分析了其他稻田综合种养模式的能值可持续发展指标。结果表明：双季稻-鱼模式的能值投入和输出均高于双季稻模式，能值投入分别为4.29×10¹⁶、3.24×10¹⁶ sej·hm^-2，能值输出分别为8.52×10¹⁶、7.71×10¹⁵ sej·hm^-2。在能值可持续发展指标方面，双季稻-鱼模式的净能值产出率和能值可持续发展指数（2.76、7.10）均高于双季稻模式（0.37、0.66）、太湖流域的中稻单作（1.38、1.92）、稻-鱼（1.26、1.47）、稻-鸭综合种养模式（1.23、2.21）和贵州从江县的稻-鱼综合种养模式（1.52、0.78）。而双季稻-鱼模式的环境负载率为0.39，低于双季稻模式（0.56）、中稻单作模式（0.72）和贵州从江县及太湖流域的稻-鱼（2.40、0.85）、稻-鸭（0.56）及上海青浦区的稻-蛙综合种养模式（0.46）。在经济效益方面，双季稻-鱼模式的平均利润（50 322元·hm^-2）显著高于双季稻（9 118元·hm^-2）模式（P<0.05）。研究表明，双季稻-鱼模式可持续发展力较强，但自给自足的能力较弱，过于依赖于市场和环境资源，在生态经济效益方面提升空间大。本研究结果可为双季稻-鱼模式的推广和健康发展提供了理论参考和依据。

英文摘要:

To explore the ecological and economic benefits of the double cropping rice-fish co-culture pattern, this study utilized energy analysis to comprehensively analyze the emergy input and output of double cropping rice-fish and rice patterns in Ningxiang City, Hunan Province. The economic benefits of the two models were compared, and a literature review was conducted to compare the emergy sustainability indicators of these two models with other integrated rice-field cultivation patterns. Results indicate that the emergy input and output of the double cropping rice-fish pattern are higher than those of the double cropping rice pattern, with energy input of 4.29×10¹⁶, 3.24×10¹⁶ sej·hm^-2 and energy output of 8.52×10¹⁶, 7.71×10¹⁵ sej·hm^-2, respectively. Regarding emergy sustainability indicators, the net emergy yield ratio（2.76）and emergy sustainability index（7.10）of the double cropping rice-fish pattern were higher than those of the double cropping rice pattern（0.37, 0.66）, central rice monoculture in the Taihu Lake basin（1.38, 1.92）, rice-fish co-culture（1.26, 1.47）, rice-duck integrated farming（1.23, 2.21）, and rice-fish integrated farming in Congjiang County, Guizhou（1.52, 0.78）. The environmental load rate of the double cropping rice-fish pattern is 0.39, lower than that of the double cropping rice pattern（0.56）, central rice monoculture（0.72）, rice-fish co-culture（2.40, 0.85）, rice-duck integrated farming（0.56）, and rice-frog integrated farming in Qingpu District, Shanghai（0.46）. In terms of economic benefits, the average profit of the double cropping rice-fish pattern is significantly higher than that of the double cropping rice pattern（P<0.05）, reaching 50 322 yuan·hm^-2 and 9 118 yuan·hm^-2, respectively. Results suggest that the double cropping rice-fish pattern exhibits strong sustainability, with a lower environmental load rate but weaker self-sufficiency, heavily relying on market and environmental resources. There is substantial room for improvement in ecological and economic benefits. This study provides theoretical references and a foundation for promoting and healthy development of the double cropping rice-fish pattern.

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