不同生态区稻虾种养资源投入与经济效益分析  

Analysis on resource input and economic benefit of rice and crayfish co-culture in different ecological regions

作　　者：张文宇 戴然欣 陈松文 李准 曹凑贵[1] 汪金平[1] ZHANG Wen-yu;DAI Ran-xin;CHEN Song-wen;LI Zhun;CAO Cou-gui;WANG Jin-ping(College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]华中农业大学植物科学技术学院,武汉430070

出　　处：《湖北农业科学》2023年第7期1-6,共6页Hubei Agricultural Sciences

基　　金：湖北省农业科技创新行动专项(2018skjcx01)。

摘　　要：选取湖北省鄂东沿江平原、鄂中北丘陵岗地和江汉平原3个区域中的典型农户,于2018年开展问卷调查,并利用柯布-道格拉斯生产函数评估这3个区域稻虾种养模式的资源利用及经济效益。结果表明,湖北省3个不同生态区在资源投入结构以及经济方面的产出和效益上均有所差异。柯布-道格拉斯函数表明,鄂东沿江平原地区影响稻田经济效益的主要因素是流动资本的投入,且肥料投入与水稻当量产量呈负相关;江汉平原地区稻虾种养年限与经济效益呈显著正相关(P<0.05);鄂中北丘陵岗地减少劳动力时长投入,提高机械化水平可显著提高水稻当量产量。相较于丘陵地带,平原地区水资源利用效率及机械化程度高,流动资本投入对增加经济效益影响明显,更适宜发展稻虾种养;通过合理的资源调控及资本投入,可以在保证经济效益的同时减少或避免对环境造成的影响。In 2018,a questionnaire survey was conducted among typical farmers in Eastern Hubei Province along the Yangtze River Plain,hilly land of north central Hubei Province and the Jianghan Plain.And Cobb-Douglas production function was used to evaluate the resource utilization and economic benefits of the rice and crayfish co-culture model in these three regions.The results showed that there were differences in resource input structure,economic output and benefits in three different ecological areas of Hubei Province.The results of Cobb-Douglas production function showed that the main factor affecting the economic benefits of paddy fields in Eastern Hubei Province along the Yangtze River Plain was the input of circulating capital,and fertilizer input was negatively correlated with rice equivalent yield.There was a significant positive correlation between planting and breeding years and economic benefits of rice and crayfish co-culture in Jianghan Plain(P<0.05).Reducing labor input and increasing mechanization level could significantly improve the equivalent yield of rice in hilly land of north central Hubei Province.Compared with hilly land,the water resources utilization efficiency and mechanization in plain areas was high,and the investment of working capital had a significant impact on increasing economic benefits,which was more suitable for the development of rice and crayfish co-culture.Moreover,through reasonable regulation of resource investment and capital investment,the impact on the environment could be reduced or avoided while ensuring economic benefits.

关 键 词：稻虾种养 产量 资源利用效率 经济效益 柯布-道格拉斯生产函数 

分 类 号：S511[农业科学—作物学] S966.12